Philippe JEAN-PIERRE

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• Type de publi. : Pré-publication, Document de travail
• Date de publi. : 17/04/2025
• Auteurs : Shreyasi AcharyaApar AgarwalGianluca Aglieri RinellaLuca AgliettaMichelangelo AgnelloNeelima AgrawalZubayer AhammedShakeel AhmadSang Un AhnIshaan AhujaAlexander AkindinovValentina AkishinaMohammad Al-TuranyDmitry AleksandrovBruno AlessandroHaidar Masud AlfandaJose Ruben Alfaro MolinaBushra AliAndrea AliciNegin AlizadehvandchaliAnton AlkinJohan AlmeGiacomo AloccoTorsten AltAnna Rita AltamuraIgor AltsybeevJesus Ricardo Alvarado GarciaMustafa AnaamCristian AndreiNicodemos AndreouAnton AndronicEvgeny AndronovVenelin AnguelovFederico AntinoriPietro AntonioliNicole ApadulaHarald AppelshaeuserCarolina ArataSilvia ArcelliRoberta ArnaldiJhoao Gabriel Martins Campos Almeida ArneiroIonut Cristian ArseneMesut ArslandokAndre AugustinusRalf Peter AverbeckDmitry AveryanovMohd Danish AzmiHitoshi BabaAngela BadalaJoonsuk BaeYunseul BaeYongwook BaekXiaozhi BaiRaphaelle Marie BailhacheYoshini BailungRenu BalaAlberto BaldisseriBartosz BalisShubham BangaliaZarina BanooVeronika BarbasovaFrancesco BarileLuca BarioglioMaria BarlouBanajit BarmanGergely Gabor BarnafoldiLee Stuart BarnbyEmilie Martine BarreauValerie Ramillien BarretLeonardo Barreto de Oliveira CamposKlaus BarthEsther BartschNicole BastidSumit BasuGuillaume BatigneDaniel BattistiniBoris BatyunyaDibakar BauriJose Luis Bazo AlbaIan Gardner BeardenPascal BechtDebadatta BeheraIouri BelikovAilec Bell HechavarriaFrancesca BelliniRene BellwiedSvetlana BelokurovaLucina Gabriela Espinoza BeltranYael Antonio Vasquez BeltranGyula BencediAdel BensaoulaStefania Maria BeoleYaroslav BerdnikovAnastasia BerdnikovaLuisa BergmannLorenzo BernardinisLatchezar BetevPartha Pratim BhaduriTushar BhallaAnju BhasinBuddhadeb BhattacharjeeSumit BhattaraiLivio BianchiJaroslav BielcikJana BielcikovaAlexandre Patrick BigotAnte BilandzicAnna BinoyGabor BiroSaikat BiswasNicolas Luc BizeDmitry BlauMihail Bogdan BlidaruNora BluhmeChristoph BlumeFriederike BockTea BodovaJeongsu BokLaszlo BoldizsarMarek BombaraPeter Matthew BondGermano BonomiHerve BorelAlexander BorissovAndres Gerardo Borquez CarcamoElena BottaYoussef El Mard BouzianiDiana Catalina BrandiburLars BratrudPeter Braun-MunzingerMarco BregantMichal BrozGiuseppe Eugenio BrunoValentin Dimitrov BuchakchievMatthew Daniel BucklandDmitry BudnikovHenner BueschingStefania BufalinoPaul Alois BuhlerNazar BurmasovEdith Zinhle ButheleziAleksandr BylinkinSebastian Adam BysiakJuan Carlos Cabanillas NorisMaria Fernanda Torres CabreraHelen Louise CainesAlberto CalivaErnesto Calvo VillarJuan Manuel Mejia CamachoPaolo CameriniMaria Teresa CamerlingoFabio de Moraes CanedoStefano CannitoSierra Lisa CantwayMihai CarabasFrancesca CarnesecchiLeopoldo Abranches de CarvalhoJavier Ernesto Castillo CastellanosMatteo CastoldiFabio CatalanoSamuele CattaruzziRebecca CerriIrakli ChakaberiaPritam ChakrabortySinjini ChandraSylvain ChapelandMarielle ChartierSouvik ChattopadhayMeiyi ChenTiantian ChengCvetan Valeriev CheshkovDavide ChiapparaVasco Miguel Chibante BarrosoDavid Dobrigkeit ChinellatoFabrizio ChinuEmma Sophia ChizzaliJaeyoon ChoSoyeon ChoPeter ChochulaZuzanna Anna ChochulskaDhrubajyoti ChoudhurySubikash ChoudhuryPanagiotis ChristakoglouChristian Holm ChristensenPeter ChristiansenTatsuya ChujoMario CiaccoCorrado CicaloGabriele CimadorFederico CindoloMichael Rudolf CiupekGiulia ClaiFabio Filippo ColamariaJonathan Samuel ColburnDomenico ColellaAngelo ColelliManuel ColocciMatteo ConcasGustavo Conesa BalbastreZaida Conesa del ValleGiacomo ContinJesus Guillermo Contreras NunoMaurice CoquetPietro CorteseMauro Rogerio CosentinoFilippo CostaSusanna CostanzaPhilippe CrochetMaciej Marek CzarnynogaAndrea DaineseGautam DangeMeike Charlotte DanischAndrea DanuProttay DasSupriya DasArchita Rani DashSadhana DashAnnalisa de CaroGiacinto de CataldoJan de CuvelandAlessandro de FalcoDaniele de GruttolaNora de MarcoChiara de MartinSalvatore de PasqualeRohaan DebRaffaele del GrandeLuigi Dello StrittoGeovane Grossi Araujo de SouzaPreeti DhankherDomenico Di BariMarcello Di 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MedinaTanu GahlautCarlos Duarte GalvanSarjeeta GamiDhevan Raja GangadharanParaskevi GanotiJose Maria Garabatos CuadradoJosue Martinez GarciaTonatiuh Garcia ChavezEdmundo Javier Garcia-SolisSara GarettiCorrado GargiuloPiotr Jan GasikHari Mohan GaurAmrit GautamMaria Beatriz de Leone GayMarie GermainRoman August GernhaeuserChandrasekhar GhoshMarco GiacaloneGiulia GioachinSourav Kanti GiriPaolo GiubellinoPiero GiubilatoAude Marie Camille GlaenzerPeter GlasselEwa GlimosVictor Luis Gonzalez SebastianPavel GordeevMarek Boguslaw GorgonKangkan GoswamiSven GotovacVarlen GrabskiLukasz Kamil GraczykowskiEkaterina GreckaAlessandro GrelliCostin GrigorasVladislav GrigoryevSmbat GrigoryanOla Slettevoll GroettvikFabrizio GrosaJan Fiete Grosse-OetringhausRaffaele GrossoDavid GrundNadine Alice GruenwaldRachid GuernaneMaxime Rene Joseph GuilbaudKristjan Herlache GulbrandsenJesper Jan Walter Karlsson GumprechtTuba GundemTaku GunjiJiacheng GuoWenda GuoAnik GuptaRamni GuptaRashi GuptaKatarzyna 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SchmidtMartin SchmidtNicolas SchmidtAustin Robert SchmierJan SchongarthRomain SchotterAlexander WilhelmiJurgen SchukraftKai Oliver SchwedaGilda ScioliEnrico ScomparinJanet Elizabeth SegerYuko SekiguchiDaiki SekihataMariia SelinaIlya SelyuzhenkovSerhiy SenyukovJin Joo SeoDmitry SerebryakovLeonid SerkinLaura SerksnyteAdrian SevcencoTebogo Joyce ShabaAlexandre ShabetaiRuben ShahoyanArtem ShangaraevBinti SharmaDeependra SharmaHimanshu SharmaMeenakshi SharmaSheetal SharmaTonmoy SharmaUpasana SharmaAfnan ShatatOveis SheibaniKenta ShigakiMaya Hachiya ShimomuraSergey ShirinkinQiye ShouYury SibiryakSabyasachi SiddhantaTeodor SiemiarczukTiago Fiorini da SilvaDavid Olle Rickard SilvermyrTawanchat SimantathammakulRadoslav SimeonovBalwan SinghBhawani SinghKamaljeet SinghRanbir SinghRavindra SinghSweta SinghVivek SinghVikas SinghalTinku Sarkar - SinhaBranislav SitarMario SittaBernhard SkaaliGeorgijs SkorodumovsNikolai SmirnovRaimond SnellingsEmilie Haugland SolheimChristian SonnabendJorine SonneveldFrancesca SoramelAnalyce Bella Soto-HernandezRik SpijkersIwona Anna SputowskaJoey StaaJohanna StachelIonel StanTim StellhornStephan Friedrich StiefelmaierDiego StoccoIda StorehaugNicolas Justus StrangmannPeter StratmannSofia StrazziAlessandro SturnioloChristos Pliatskas StylianidisAlexandre Alarcon Do Passo SuaideChristophe Pierre SuireAlice-Florenta SuiuMikhail SukhanovMiljenko SuljicRishat SultanovVikash SumberiaSuharyo SumowidagdoLorenzo Hernandez TabaresSeyed Farid TaghaviJun TakahashiGanesh Jagannath TambaveZebo TangJaideep TanwarDaniel Jesus Tapia TakakiNicolae TapusLucia Anna TarasovicovaMadalina-Gabriela TarzilaArturo TauroAndrea Tavira GarciaGuillermo Tejeda MunozLivia TerlizziCristina TerrevoliDhananjaya ThakurSanchari ThakurMagnus ThoegersenDeepa ThomasAnatoly TikhonovNicolas TiltmannAnthony Robert TimminsMilan TkacikAlberica ToiaRyoka TokumotoSofia TomassiniKeisuke TomohiroNataliya TopilskayaMarco ToppiVictor Valencia TorresAntonio TrifiroTriloki TrilokiAndrea Sofia TrioloSushanta TripathyTulika TripathyStefano TrogoloVictor TrubnikovWladyslaw Henryk TrzaskaTomasz Piotr TrzcinskiChristina TsolantaRan TuAlexandr TumkinRosario TurrisiTrine Spedstad TveterKjetil UllalandBerkin UlukutluSahil UpadhyayaAntonio UrasMarta UrioniGianluca UsaiMokshi VaidMartin ValaNicolo ValleLennart van DoremalenMarco van LeeuwenCasper Arie van VeenRoelof Jan Gijs van WeeldenDezso VargaZoltan VargaPaola Vargas TorresMaria VasileiouAndrey VasilievOton Vazquez DoceOmar Vazquez RuedaVladimir VecherninPaul VeenErmanno VercellinRahul VermaRobert VertesiMarta VerweijLinda VickovicZabulon VilakaziOrlando Villalobos BaillieAnna VillaniAlexander VinogradovTiziano VirgiliMaxim Mikael Olavi VirtaAlexander VodopyanovBenedikt VoelkelMartin Andreas VolklSergey VoloshinGiacomo VolpeBarthelemy von HallerIvan VorobyevNikita VozniukJanka VrlakovaJie WanChunzheng WangDongfang WangYuanzhe WangYubiao WangZhengqing WangAdam Tadeusz WegrzynekFelix Thomas WeiglhoferSandro Christian WenzelJohannes Peter WesselsPiotr Kazimierz WiacekJens WiechulaJon WikneGrzegorz Andrzej WilkJeremy John WilkinsonGuido Alexander WillemsBernd Stefan WindelbandMichael Andreas WinnJosephina Rae WrightWenya WuYitao WuKegang XiongZhenjun XiongRan XuAnkur YadavArun Kumar YadavYorito YamaguchiSeunghwan YangShiming YangSatoshi YanoEmma Rose YeatsJie YiZhongbao YinIn Kwon YooJin Hee YoonHyeonjin YuShiming YuanAlperen YuncuValentina ZaccoloChiara ZampolliFederica ZanoneNima ZardoshtiPetr ZavadaMikhail ZhalovBiao ZhangChi ZhangLiuyao ZhangMaolin ZhangMingyu ZhangSong ZhangXiaoming ZhangYifei ZhangYuan ZhangZhen ZhangMingrui ZhaoVladimir ZherebchevskiiZhi YuDaicui ZhouYou ZhouJianhui ZhuSenjie ZhuYa ZhuStefan Cristi ZugravelNicola Zurlo
• Organismes : Laboratoire de Physique Subatomique et de Cosmologie Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique de Clermont Laboratoire de Physique de Clermont Laboratoire de physique subatomique et des technologies associées Institut Pluridisciplinaire Hubert Curien Institut Pluridisciplinaire Hubert Curien Laboratoire de physique subatomique et des technologies associées Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Physique des 2 Infinis de Lyon Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique de Clermont Laboratoire de Physique de Clermont Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique Subatomique et de Cosmologie Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de physique subatomique et des technologies associées Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Institut de Physique des 2 Infinis de Lyon Institut Pluridisciplinaire Hubert Curien Institut Pluridisciplinaire Hubert Curien Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de Physique de Clermont Institut de Physique des 2 Infinis de Lyon Institut Pluridisciplinaire Hubert Curien Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique de Clermont Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique de Clermont Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique de Clermont Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Physique des 2 Infinis de Lyon Institut Pluridisciplinaire Hubert Curien Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique de Clermont Institut de Physique des 2 Infinis de Lyon Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique de Clermont

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Résumé : In this letter, we present the first measurement of the energy-energy correlator (EEC) in charm-tagged jets from proton-proton (pp) collisions at $\sqrt{s} = 13$ TeV. EECs probe the structure of QCD radiation, providing a unique test of mass-dependent effects in parton showers involving a charm quark and offering a distinct view into non-perturbative phenomena, including the hadronization process. The EEC is measured for charm-tagged jets and flavor-untagged (inclusive) jets with transverse momenta of $10 < p_{\rm T} < 30$ GeV/$c$, where charm-quark mass effects are significant. We observe a significant suppression of the EEC amplitude in charm jets compared to inclusive ones, consistent with the expected suppression of radiation from massive quarks -- a fundamental prediction of QCD. Despite the significant amplitude difference, the observed peak positions of the charm and inclusive-jet EEC are similar, indicating a complex interplay between Casimir factor (differentiating quark and gluon jets), and quark-mass (dead-cone) effects in the QCD parton shower as well as subsequent hadronization effects. Comparisons with next-to-leading order calculations and various Monte Carlo event generators reveal the sensitivity of this observable to both mass effects in the parton shower and hadronization process. These results provide new constraints on theoretical models of heavy-quark jets and offer insights into the parton-to-hadron transition in QCD.

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Source

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• Type de publi. : Communication dans un congrès
• Date de publi. : 17/04/2025
• Auteurs : Verdeaux GabrielGueudry DianeJ P de VaujanyPhilippe Velex
• Organismes : Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne]

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Résumé : An original analytical model is presented, which makes it possible to simulate effectively the instant load distribution and stiffness in splines while taking into consideration supporting shafts and bearing arrangements along with positioning errors. The geometry of both splines is accurately constructed based on ANSI XXXX standard, considering possible lead crown and tip relief on the teeth. The tooth flank coordinates are all expressed in the moving coordinate system attached to the driving member (external tooth spline here) and position errors are superimposed by screws of infinitesimal displacements. Contacts in rigid-body conditions are then numerically searched by using a slave-master algorithm and no particular hypothesis have been used concerning the a-priori positions of the contacting points. Assuming that the input rotational speed is constant, the instant output speed is derived from the fundamental principle of rigid-solid kinematics stating that the normal velocities at two points in contact are equal. The mesh elastic interface between the splines is simulated by using Winkler foundations on the tooth flank surfaces whose stiffness elements are determined from the classic Weber and Banaschek’s formulae for tooth bending, contact and base deflections. Each spline is assimilated to a rigid disc with 6 degrees-of-freedom at their centres, which are linked by the time-varying, possibly non-linear mesh elastic interface described above and connected to shafts and bearings via substructures derived from three-dimensional finite element models. The amplitudes and directions of sliding velocity are derived from rigid-solid kinematics and a Coulomb’s law for friction is used to determine the friction force distribution particularly when the input and output axes are misaligned. Friction forces lead to skew-symmetric stiffness matrices and dissipative forcing terms. The resulting equations of equilibrium are iteratively solved by using a unilateral normal contact algorithm, which verifies that all the contact forces on the teeth are compressive and that no interferences between the mating surfaces occur outside the contact zones. A series of comparisons with a finite element-based model of splines proves that the proposed methodology is sound and gives comparable results in terms of pressure distributions with considerable gains in computational cost. A number of numerical results are shown, which illustrate the potential of the modelling approach and its interest when massive parameter analyses are needed. Finally, it is to be noted that extensions to dynamic simulations based on the proposed modelling strategy appear as straightforward and are currently under way.

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Fichiers liés : ICMT2025_Proceding-Verdeaux G.pdf

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Source

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• Type de publi. : Pré-publication, Document de travail
• Date de publi. : 17/04/2025
• Auteurs : Shreyasi AcharyaApar AgarwalGianluca Aglieri RinellaLuca AgliettaMichelangelo AgnelloNeelima AgrawalZubayer AhammedShakeel AhmadSang Un AhnIshaan AhujaAlexander AkindinovValentina AkishinaMohammad Al-TuranyDmitry AleksandrovBruno AlessandroHaidar Masud AlfandaJose Ruben Alfaro MolinaBushra AliAndrea AliciNegin AlizadehvandchaliAnton AlkinJohan AlmeGiacomo AloccoTorsten AltAnna Rita AltamuraIgor AltsybeevJesus Ricardo Alvarado GarciaMustafa AnaamCristian AndreiNicodemos AndreouAnton AndronicEvgeny AndronovVenelin AnguelovFederico AntinoriPietro AntonioliNicole ApadulaHarald AppelshaeuserCarolina ArataSilvia ArcelliRoberta ArnaldiJhoao Gabriel Martins Campos Almeida ArneiroIonut Cristian ArseneMesut ArslandokAndre AugustinusRalf Peter AverbeckDmitry AveryanovMohd Danish AzmiHitoshi BabaAngela BadalaJoonsuk BaeYunseul BaeYongwook BaekXiaozhi BaiRaphaelle Marie BailhacheYoshini BailungRenu BalaAlberto BaldisseriBartosz BalisShubham BangaliaZarina BanooVeronika BarbasovaFrancesco BarileLuca BarioglioMaria BarlouBanajit BarmanGergely Gabor BarnafoldiLee Stuart BarnbyEmilie Martine BarreauValerie Ramillien BarretLeonardo Barreto de Oliveira CamposKlaus BarthEsther BartschNicole BastidSumit BasuGuillaume BatigneDaniel BattistiniBoris BatyunyaDibakar BauriJose Luis Bazo AlbaIan Gardner BeardenPascal BechtDebadatta BeheraIouri BelikovAilec Bell HechavarriaFrancesca BelliniRene BellwiedSvetlana BelokurovaLucina Gabriela Espinoza BeltranYael Antonio Vasquez BeltranGyula BencediAdel BensaoulaStefania Maria BeoleYaroslav BerdnikovAnastasia BerdnikovaLuisa BergmannLorenzo BernardinisLatchezar BetevPartha Pratim BhaduriAnju BhasinBuddhadeb BhattacharjeeSumit BhattaraiLivio BianchiJaroslav BielcikJana BielcikovaAlexandre Patrick BigotAnte BilandzicAnna BinoyGabor BiroSaikat BiswasNicolas Luc BizeDmitry BlauMihail Bogdan BlidaruNora BluhmeChristoph BlumeFriederike BockTea BodovaJeongsu BokLaszlo BoldizsarMarek BombaraPeter Matthew BondGermano BonomiHerve BorelAlexander BorissovAndres Gerardo Borquez CarcamoElena BottaYoussef El Mard BouzianiDiana Catalina BrandiburLars BratrudPeter Braun-MunzingerMarco BregantMichal BrozGiuseppe Eugenio BrunoValentin Dimitrov BuchakchievMatthew Daniel BucklandDmitry BudnikovHenner BueschingStefania BufalinoPaul Alois BuhlerNazar BurmasovEdith Zinhle ButheleziAleksandr BylinkinSebastian Adam BysiakJuan Carlos Cabanillas NorisMaria Fernanda Torres CabreraHelen Louise CainesAlberto CalivaErnesto Calvo VillarJuan Manuel Mejia CamachoPaolo CameriniMaria Teresa CamerlingoFabio de Moraes CanedoStefano CannitoSierra Lisa CantwayMihai CarabasFrancesca CarnesecchiLeopoldo Abranches de CarvalhoJavier Ernesto Castillo CastellanosMatteo CastoldiFabio CatalanoSamuele CattaruzziRebecca CerriIrakli ChakaberiaPritam ChakrabortySinjini ChandraSylvain ChapelandMarielle ChartierSouvik ChattopadhayMeiyi ChenTiantian ChengCvetan Valeriev CheshkovDavide ChiapparaVasco Miguel Chibante BarrosoDavid Dobrigkeit ChinellatoFabrizio ChinuEmma Sophia ChizzaliJaeyoon ChoSoyeon ChoPeter ChochulaZuzanna Anna ChochulskaDhrubajyoti ChoudhurySubikash ChoudhuryPanagiotis ChristakoglouChristian Holm ChristensenPeter ChristiansenTatsuya ChujoMario CiaccoCorrado CicaloGabriele CimadorFederico CindoloMichael Rudolf CiupekGiulia ClaiFabio Filippo ColamariaJonathan Samuel ColburnDomenico ColellaAngelo ColelliManuel ColocciMatteo ConcasGustavo Conesa BalbastreZaida Conesa del ValleGiacomo ContinJesus Guillermo Contreras NunoMaurice CoquetPietro CorteseMauro Rogerio CosentinoFilippo CostaSusanna CostanzaPhilippe CrochetMaciej Marek CzarnynogaAndrea DaineseGautam DangeMeike Charlotte DanischAndrea DanuProttay DasSupriya DasArchita Rani DashSadhana DashAnnalisa de CaroGiacinto de CataldoJan de CuvelandAlessandro de FalcoDaniele de GruttolaNora de MarcoChiara de MartinSalvatore de PasqualeRohaan DebRaffaele del GrandeLuigi Dello StrittoGeovane Grossi Araujo de SouzaPreeti DhankherDomenico Di BariMarcello Di 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MedinaTanu GahlautCarlos Duarte GalvanSarjeeta GamiDhevan Raja GangadharanParaskevi GanotiJose Maria Garabatos CuadradoJosue Martinez GarciaTonatiuh Garcia ChavezEdmundo Javier Garcia-SolisSara GarettiCorrado GargiuloPiotr Jan GasikHari Mohan GaurAmrit GautamMaria Beatriz de Leone GayMarie GermainRoman August GernhaeuserChandrasekhar GhoshMarco GiacaloneGiulia GioachinSourav Kanti GiriPaolo GiubellinoPiero GiubilatoAude Marie Camille GlaenzerPeter GlasselEwa GlimosVictor Luis Gonzalez SebastianPavel GordeevMarek Boguslaw GorgonKangkan GoswamiSven GotovacVarlen GrabskiLukasz Kamil GraczykowskiEkaterina GreckaAlessandro GrelliCostin GrigorasVladislav GrigoryevSmbat GrigoryanOla Slettevoll GroettvikFabrizio GrosaJan Fiete Grosse-OetringhausRaffaele GrossoDavid GrundNadine Alice GruenwaldRachid GuernaneMaxime Rene Joseph GuilbaudKristjan Herlache GulbrandsenJesper Jan Walter Karlsson GumprechtTuba GundemTaku GunjiJiacheng GuoWenda GuoAnik GuptaRamni GuptaRashi GuptaKatarzyna 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PianoMiroslav PiknaPhilippe PillotOmbretta PinazzaLawrence PinskyChiara PintoSilvia PisanoMateusz Andrzej PloskonMirko PlaninicDamian Kacper PlociennikMartin PoghosyanBoris PolishchukStefano PolitanoNikola PoljakAmalia PopSarah Julie PorteboeufValerii PozdniakovIrandheny Yoval PozosKshitish Kumar PradhanSidharth Kumar PrasadSuraj PrasadRoberto PreghenellaFrancesco PrinoClaude Andre PruneauIgor PshenichnovMaximiliano PuccioSara PucilloLuca QuagliaAswathy Menon Kavumpadikkal RadhakrishnanSimone RagoniAnanya RaiAndry Malala RakotozafindrabeNiveditha RamasubramanianLuciano RamelloCesar Omar Ramirez AlvarezMarika RasaSami Sakari RasanenRutuparna RathMax Philip RauchIvan RavasengaKenneth Francis ReadChristian ReckziegelAndreas Ralph RedelbachKrzysztof RedlichCarolina Anna ReetzHector David Regules MedelAttiq Ur RehmanFelix ReidtHaakon Andre Reme-NessKlaus Johannes ReygersAndrei RiabovViktor RiabovRiccardo RicciMatthias Rudolph RichterAnton Albert RiedelWerner RieglerAndrea Giovanni RifferoMichele RignaneseCristina RipoliCatalin-Lucian RisteaManuel Viqueira RodriguezMario Rodriguez CahuantziKetil RoeedRoman RogalevElena RogochayaDavid Michael RohrDieter RoehrichSolangel Rojas TorresPrzemyslaw Stefan RokitaGleb RomanenkoFederico RonchettiDiana Rosales HerreraEdgar Dominguez RosasKrystian RoslonAndrea RossiAnkhi RoySubhadeep RoyNicola RubiniJustus Arne RudolphDaniela RuggianoRinaldo RuiPawel Grzegorz RussekRoberto RussoAnar RustamovEvgeny RyabinkinYury RyabovAndrzej Krzysztof RybickiLevi Colt van RyderJaehyeok RyuWioleta RzesaBianca SabiuSamrangy SadhuSergey SadovskiyJon-Are SaetreSwati SahaBhagyarathi SahooRaghunath SahooDushmanta SahuPradip Kumar SahuJogender SainiKlaudia TroppShingo SakaiSanjeev Singh SambyalDaniel SamitzIsabella SannaThiago Badaro SaramelaDebojit SarkarPranjal SarmaValerio SarritzuValentina Mantovani SartiMike SasSawan SawanEugenio ScapparoneJohann Joachim SchambachHorst Sebastian ScheidClaudiu Cornel SchiauaRainer Martin SchickerFelix SchlepperAlexander SchmahChristian Joachim SchmidtMarten Ole SchmidtMartin SchmidtNicolas SchmidtAustin Robert SchmierJan SchongarthRomain SchotterAlexander WilhelmiJurgen SchukraftKai Oliver SchwedaGilda ScioliEnrico ScomparinJanet Elizabeth SegerYuko SekiguchiDaiki SekihataMariia SelinaIlya SelyuzhenkovSerhiy SenyukovJin Joo SeoDmitry SerebryakovLeonid SerkinLaura SerksnyteAdrian SevcencoTebogo Joyce ShabaAlexandre ShabetaiRuben ShahoyanArtem ShangaraevBinti SharmaDeependra SharmaHimanshu SharmaMeenakshi SharmaSheetal SharmaTonmoy SharmaUpasana SharmaAfnan ShatatOveis SheibaniKenta ShigakiMaya Hachiya ShimomuraSergey ShirinkinQiye ShouYury SibiryakSabyasachi SiddhantaTeodor SiemiarczukTiago Fiorini da SilvaDavid Olle Rickard SilvermyrTawanchat SimantathammakulRadoslav SimeonovBalwan SinghBhawani SinghKamaljeet SinghRanbir SinghRavindra SinghSweta SinghVivek SinghVikas SinghalTinku Sarkar - SinhaBranislav SitarMario SittaBernhard SkaaliGeorgijs SkorodumovsNikolai SmirnovRaimond SnellingsEmilie Haugland SolheimChristian SonnabendJorine SonneveldFrancesca SoramelAnalyce Bella Soto-HernandezRik SpijkersIwona Anna SputowskaJoey StaaJohanna StachelIonel StanTim StellhornStephan Friedrich StiefelmaierDiego StoccoIda StorehaugNicolas Justus StrangmannPeter StratmannSofia StrazziAlessandro SturnioloChristos Pliatskas StylianidisAlexandre Alarcon Do Passo SuaideChristophe Pierre SuireAlice-Florenta SuiuMikhail SukhanovMiljenko SuljicRishat SultanovVikash SumberiaSuharyo SumowidagdoLorenzo Hernandez TabaresSeyed Farid TaghaviJun TakahashiGanesh Jagannath TambaveZebo TangDaniel Jesus Tapia TakakiNicolae TapusLucia Anna TarasovicovaMadalina-Gabriela TarzilaArturo TauroAndrea Tavira GarciaGuillermo Tejeda MunozLivia TerlizziCristina TerrevoliDhananjaya ThakurSanchari ThakurMagnus ThoegersenDeepa ThomasAnatoly TikhonovNicolas TiltmannAnthony Robert TimminsMilan TkacikAlberica ToiaRyoka TokumotoSofia TomassiniKeisuke TomohiroNataliya TopilskayaMarco ToppiVictor Valencia TorresAntonio TrifiroTriloki TrilokiAndrea Sofia TrioloSushanta TripathyTulika TripathyStefano TrogoloVictor TrubnikovWladyslaw Henryk TrzaskaTomasz Piotr TrzcinskiChristina TsolantaRan TuAlexandr TumkinRosario TurrisiTrine Spedstad TveterKjetil UllalandBerkin UlukutluSahil UpadhyayaAntonio UrasMarta UrioniGianluca UsaiMokshi VaidMartin ValaNicolo ValleLennart van DoremalenMarco van LeeuwenCasper Arie van VeenRoelof Jan Gijs van WeeldenDezso VargaZoltan VargaPaola Vargas TorresMaria VasileiouAndrey VasilievOton Vazquez DoceOmar Vazquez RuedaVladimir VecherninPaul VeenErmanno VercellinRahul VermaRobert VertesiMarta VerweijLinda VickovicZabulon VilakaziOrlando Villalobos BaillieAnna VillaniAlexander VinogradovTiziano VirgiliMaxim Mikael Olavi VirtaAlexander VodopyanovBenedikt VoelkelMartin Andreas VolklSergey VoloshinGiacomo VolpeBarthelemy von HallerIvan VorobyevNikita VozniukJanka VrlakovaJie WanChunzheng WangDongfang WangYuanzhe WangYubiao WangZhengqing WangAdam Tadeusz WegrzynekFelix Thomas WeiglhoferSandro Christian WenzelJohannes Peter WesselsPiotr Kazimierz WiacekJens WiechulaJon WikneGrzegorz Andrzej WilkJeremy John WilkinsonGuido Alexander WillemsBernd Stefan WindelbandMichael Andreas WinnJosephina Rae WrightWenya WuYitao WuKegang XiongZhenjun XiongRan XuAnkur YadavArun Kumar YadavYorito YamaguchiSeunghwan YangShiming YangSatoshi YanoEmma Rose YeatsJie YiZhongbao YinIn Kwon YooJin Hee YoonHyeonjin YuShiming YuanAlperen YuncuValentina ZaccoloChiara ZampolliFederica ZanoneNima ZardoshtiPetr ZavadaMikhail ZhalovBiao ZhangChi ZhangLiuyao ZhangMaolin ZhangMingyu ZhangSong ZhangXiaoming ZhangYifei ZhangYuan ZhangZhen ZhangMingrui ZhaoVladimir ZherebchevskiiZhi YuDaicui ZhouYou ZhouJianhui ZhuSenjie ZhuYa ZhuStefan Cristi ZugravelNicola Zurlo
• Organismes : Laboratoire de Physique Subatomique et de Cosmologie Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique de Clermont Laboratoire de Physique de Clermont Laboratoire de physique subatomique et des technologies associées Institut Pluridisciplinaire Hubert Curien Institut Pluridisciplinaire Hubert Curien Laboratoire de physique subatomique et des technologies associées Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Physique des 2 Infinis de Lyon Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique de Clermont Laboratoire de Physique de Clermont Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique Subatomique et de Cosmologie Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de physique subatomique et des technologies associées Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Institut de Physique des 2 Infinis de Lyon Institut Pluridisciplinaire Hubert Curien Institut Pluridisciplinaire Hubert Curien Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de Physique de Clermont Institut de Physique des 2 Infinis de Lyon Institut Pluridisciplinaire Hubert Curien Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique de Clermont Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique de Clermont Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique de Clermont Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Physique des 2 Infinis de Lyon Institut Pluridisciplinaire Hubert Curien Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique de Clermont Institut de Physique des 2 Infinis de Lyon Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique de Clermont

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Résumé : The ALICE Collaboration reports its first LHC Run 3 measurements of charged-particle pseudorapidity density at midrapidity in Pb-Pb collisions at a centre-of-mass energy per nucleon pair of $\sqrt{s_{\mathrm{NN}}}=5.36$ TeV. Particle multiplicity in high-energy collisions characterises the system geometry, constrains particle-production mechanisms, and is used to estimate initial energy density. Multiplicity also acts as a reference for subsequent measurements as a function of centrality. In this letter, for the first time, charged particles are reconstructed using the upgraded ALICE Inner Tracking System and Time Projection Chamber, while the collision centrality is determined by measuring charged-particle multiplicities with the Fast Interaction Trigger system. Pseudorapidity density, ${\rm d}N_{\rm ch}/{\rm d}\eta$, is presented, averaged over events, for various centrality classes. Results are shown as a function of pseudorapidity and the average number of participating nucleons ($\langle N_{\mathrm{part}}\rangle$) in the collision. The average charged-particle pseudorapidity density ($\langle {\rm d}N_{\rm ch}/{\rm d}\eta \rangle$) at midrapidity ($|\eta|<0.5$) is 2047 $\pm$ 54 for the 5% most central collisions. The value of $\langle {\rm d}N_{\rm ch}/{\rm d}\eta \rangle$ normalised to $\langle N_{\mathrm{part}}\rangle/2$ as a function of $\sqrt{s_{\mathrm{NN}}}$ follows the trend established in previous measurements in heavy-ion collisions. Theoretical models based on mechanisms for particle production in nuclear collisions that involve the formation of quark-gluon plasma medium and models based on individual nucleon-nucleon interactions are compared to the data.

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• Type de publi. : Pré-publication, Document de travail
• Date de publi. : 17/04/2025
• Auteurs : Shreyasi AcharyaGianluca Aglieri RinellaLuca AgliettaMichelangelo AgnelloNeelima AgrawalZubayer AhammedShakeel AhmadSang Un AhnIshaan AhujaZulkaida AkbarAlexander AkindinovValentina AkishinaMohammad Al-TuranyDmitry AleksandrovBruno AlessandroHaidar Mas'Ud AlfandaJose Ruben Alfaro MolinaBushra AliAndrea AliciNegin AlizadehvandchaliAnton AlkinJohan AlmeGiacomo AloccoTorsten AltAnna Rita AltamuraIgor AltsybeevMustafa AnaamCristian AndreiNicodemos AndreouAnton AndronicEvgeny AndronovVenelin AnguelovFederico AntinoriPietro AntonioliNicole ApadulaHarald AppelshaeuserCarolina ArataSilvia ArcelliRoberta ArnaldiJhoao Gabriel Martins Campos Almeida ArneiroIonut Cristian ArseneMesut ArslandokAndre AugustinusRalf Peter AverbeckDmitry AveryanovMohd Danish AzmiHitoshi BabaAngela BadalaJoonsuk BaeYunseul BaeYongwook BaekXiaozhi BaiRaphaelle Marie BailhacheYoshini BailungRenu BalaAlberto BaldisseriBartosz BalisShubham BangaliaZarina BanooVeronika BarbasovaFrancesco BarileLuca BarioglioMaria BarlouBanajit BarmanGergely Gabor BarnafoldiLee Stuart BarnbyEmilie Martine BarreauValerie Ramillien BarretLeonardo Barreto de Oliveira CamposKlaus BarthEsther BartschNicole BastidSumit BasuGuillaume BatigneDaniel BattistiniBoris BatyunyaDibakar BauriJose Luis Bazo AlbaIan Gardner BeardenPascal BechtDebadatta BeheraIouri BelikovAilec Bell HechavarriaFrancesca BelliniRene BellwiedSvetlana BelokurovaLucina Gabriela Espinoza BeltranYael Antonio Vasquez BeltranGyula BencediAdel BensaoulaStefania Maria BeoleYaroslav BerdnikovAnastasia BerdnikovaLuisa BergmannLorenzo BernardinisLatchezar BetevPartha Pratim BhaduriTushar BhallaAnju BhasinBuddhadeb BhattacharjeeSumit BhattaraiLivio BianchiJaroslav BielcikJana BielcikovaAlexandre Patrick BigotAnte BilandzicAnna BinoyGabor BiroSaikat BiswasNicolas Luc BizeDmitry BlauMihail Bogdan BlidaruNora BluhmeChristoph BlumeFriederike BockTea BodovaJeongsu BokLaszlo BoldizsarMarek BombaraPeter Matthew BondGermano BonomiHerve BorelAlexander BorissovAndres Gerardo Borquez CarcamoElena BottaYoussef El Mard BouzianiDiana Catalina BrandiburLars BratrudPeter Braun-MunzingerMarco BregantMichal BrozGiuseppe Eugenio BrunoValentin Dimitrov BuchakchievMatthew Daniel BucklandDmitry BudnikovHenner BueschingStefania BufalinoPaul Alois BuhlerNazar BurmasovEdith Zinhle ButheleziAleksandr BylinkinSebastian Adam BysiakJuan Carlos Cabanillas NorisMaria Fernanda Torres CabreraHelen Louise CainesAlberto CalivaErnesto Calvo VillarJuan Manuel Mejia CamachoPaolo CameriniMaria Teresa CamerlingoFabio de Moraes CanedoStefano CannitoSierra Lisa CantwayMihai CarabasFrancesca CarnesecchiLeopoldo Abranches de CarvalhoJavier Ernesto Castillo CastellanosMatteo CastoldiFabio CatalanoSamuele CattaruzziRebecca CerriIrakli ChakaberiaPritam ChakrabortySinjini ChandraSylvain ChapelandMarielle ChartierSouvik ChattopadhayMeiyi ChenTiantian ChengCvetan Valeriev CheshkovDavide ChiapparaVasco Miguel Chibante BarrosoDavid Dobrigkeit ChinellatoFabrizio ChinuEmma Sophia ChizzaliJaeyoon ChoSoyeon ChoPeter ChochulaZuzanna Anna ChochulskaDhrubajyoti ChoudhurySubikash ChoudhuryPanagiotis ChristakoglouChristian Holm ChristensenPeter ChristiansenTatsuya ChujoMario CiaccoCorrado CicaloGabriele CimadorFederico CindoloMichael Rudolf CiupekGiulia ClaiFabio Filippo ColamariaJonathan Samuel ColburnDomenico ColellaAngelo ColelliManuel ColocciMatteo ConcasGustavo Conesa BalbastreZaida Conesa del ValleGiacomo ContinJesus Guillermo Contreras NunoMaurice CoquetPietro CorteseMauro Rogerio CosentinoFilippo CostaSusanna CostanzaPhilippe CrochetMaciej Marek CzarnynogaAndrea DaineseGautam DangeMeike Charlotte DanischAndrea DanuProttay DasSupriya DasArchita Rani DashSadhana DashAnnalisa de CaroGiacinto de CataldoJan de CuvelandAlessandro de FalcoDaniele de GruttolaNora de MarcoChiara de MartinSalvatore de PasqualeRohaan DebRaffaele del GrandeLuigi Dello StrittoGeovane Grossi Araujo de SouzaPreeti DhankherDomenico Di BariMarcello Di CostanzoAntonio Di MauroBenedetto 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Duarte GalvanSarjeeta GamiDhevan Raja GangadharanParaskevi GanotiJose Maria Garabatos CuadradoJosue Martinez GarciaTonatiuh Garcia ChavezEdmundo Javier Garcia-SolisSara GarettiCorrado GargiuloPiotr Jan GasikHari Mohan GaurAmrit GautamMaria Beatriz de Leone GayMarie GermainRoman August GernhaeuserChandrasekhar GhoshMarco GiacaloneGiulia GioachinSourav Kanti GiriPaolo GiubellinoPiero GiubilatoAude Marie Camille GlaenzerPeter GlasselEwa GlimosVictor Luis Gonzalez SebastianPavel GordeevMarek Boguslaw GorgonKangkan GoswamiSven GotovacVarlen GrabskiLukasz Kamil GraczykowskiEkaterina GreckaAlessandro GrelliCostin GrigorasVladislav GrigoryevSmbat GrigoryanOla Slettevoll GroettvikFabrizio GrosaJan Fiete Grosse-OetringhausRaffaele GrossoDavid GrundNadine Alice GruenwaldRachid GuernaneMaxime Rene Joseph GuilbaudKristjan Herlache GulbrandsenJesper Jan Walter Karlsson GumprechtTuba GundemTaku GunjiJiacheng GuoWenda GuoAnik GuptaRamni GuptaRashi GuptaKatarzyna GwizdzielLaszlo GyulaiCynthia Marie 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Markus LeschPeter LevaiMingze LiPeiyu LiXiaomei LiBeatrice Eva Liang-GilmanJorgen Andre LienRoman LietavaIris LikmetaBong-Hwi LimHyunji LimSanghoon LimShoulong LinVolker LindenstruthChristian LippmannDominika LiskovaDonghai LiuJian LiuGianni Shigeru Setoue LiveraroIngrid Mckibben LofnesConstantinos LoizidesSandor LokosJohanna LomkerXavier Bernard LopezErnesto Lopez TorresClement LotteauPengzhong LuWeijian LuZhiyong LuFabiola Viridiana Lugo PorrasJiaqi LuoGrazia LuparelloMario Armando Talamantes JohnsonYugang MaMagnus MagerAntonin MaireEmilia Maria MajerzMartin Vasilev MakarievMikhail MalaevGiovanni MalfattoreNasir Mehdi MalikNida MalikSalman Khurshid MalikDukhishyam MallickNeelkamal MallickGiuseppe MandaglioSushobhan Kumar MandalAlexandru ManeaVladislav MankoAyan Kumar MannaFranck MansoGeorgios MantzaridisVito ManzariYaxian MaoRobert Waclaw MarcjanGiacomo Vito MargagliottiAnselmo MargottiAna Maria MarinChristina MarkertPaolo MartinengoMario Ivan Martinez HernandezGines 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PintoSilvia PisanoMateusz Andrzej PloskonMirko PlaninicDamian Kacper PlociennikMartin PoghosyanBoris PolishchukStefano PolitanoNikola PoljakAmalia PopSarah Julie PorteboeufIrandheny Yoval PozosKshitish Kumar PradhanSidharth Kumar PrasadSuraj PrasadRoberto PreghenellaFrancesco PrinoClaude Andre PruneauIgor PshenichnovMaximiliano PuccioSara PucilloLuca QuagliaAswathy Menon Kavumpadikkal RadhakrishnanSimone RagoniAnanya RaiAndry Malala RakotozafindrabeNiveditha RamasubramanianLuciano RamelloCesar Omar Ramirez AlvarezMarika RasaSami Sakari RasanenRutuparna RathMax Philip RauchIvan RavasengaKenneth Francis ReadChristian ReckziegelAndreas Ralph RedelbachKrzysztof RedlichCarolina Anna ReetzHector David Regules MedelAttiq Ur RehmanFelix ReidtHaakon Andre Reme-NessKlaus Johannes ReygersAndrei RiabovViktor RiabovRiccardo RicciMatthias Rudolph RichterAnton Albert RiedelWerner RieglerAndrea Giovanni RifferoMichele RignaneseCristina RipoliCatalin-Lucian RisteaManuel Viqueira RodriguezMario 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• Organismes : Laboratoire de Physique Subatomique et de Cosmologie Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique de Clermont Laboratoire de Physique de Clermont Laboratoire de physique subatomique et des technologies associées Institut Pluridisciplinaire Hubert Curien Institut Pluridisciplinaire Hubert Curien Laboratoire de physique subatomique et des technologies associées Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Physique des 2 Infinis de Lyon Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique de Clermont Laboratoire de Physique de Clermont Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique Subatomique et de Cosmologie Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de physique subatomique et des technologies associées Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Institut de Physique des 2 Infinis de Lyon Institut Pluridisciplinaire Hubert Curien Institut Pluridisciplinaire Hubert Curien Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de Physique de Clermont Institut de Physique des 2 Infinis de Lyon Institut Pluridisciplinaire Hubert Curien Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique de Clermont Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique de Clermont Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique de Clermont Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Physique des 2 Infinis de Lyon Institut Pluridisciplinaire Hubert Curien Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de physique subatomique et des technologies associées Laboratoire de Physique de Clermont Institut de Physique des 2 Infinis de Lyon Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique de Clermont

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Résumé : This Letter presents measurements of long-range transverse-momentum correlations using a new observable, $v_{0}(p_\mathrm{T})$, which serves as a probe of radial flow and medium properties in heavy-ion collisions. Results are reported for inclusive charged particles, pions, kaons, and protons across various centrality intervals in Pb$-$Pb collisions at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV, recorded by the ALICE detector. A pseudorapidity-gap technique, similar to that used in anisotropic-flow studies, is employed to suppress short-range correlations. At low $p_\mathrm{T}$, a characteristic mass ordering consistent with hydrodynamic collective flow is observed. At higher $p_\mathrm{T}$ ($> 3$ GeV/$c$), protons exhibit larger $v_{0}(p_\mathrm{T})$ than pions and kaons, in agreement with expectations from quark-recombination models. These results are sensitive to the bulk viscosity and the equation of state of the QCD medium formed in heavy-ion collisions.

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