Philippe Jean-Pierre

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• Type de publi. : Pré-publication, Document de travail
• Date de publi. : 25/11/2025
• Auteurs : Ibrahim Jaser AbualrobShreyasi AcharyaGianluca Aglieri RinellaLuca AgliettaNeelima AgrawalZubayer AhammedShakeel AhmadIshaan AhujaZulkaida AkbarAlexander AkindinovValentina AkishinaMohammad Al-TuranyDmitry AleksandrovBruno AlessandroJose Ruben Alfaro MolinaBushra AliAndrea AliciAnton AlkinJohan AlmeGiacomo AloccoTorsten AltIgor AltsybeevCristian AndreiNicodemos AndreouAnton AndronicEvgeny AndronovMassimo AngelettiVenelin AnguelovFederico AntinoriPietro AntonioliNicole ApadulaHarald AppelshaeuserSilvia ArcelliRoberta ArnaldiJhoao Gabriel Martins Campos Almeida ArneiroIonut Cristian ArseneMesut ArslandokAndre AugustinusRalf Peter AverbeckMohd Danish AzmiHitoshi BabaAkash Raj John BabuAngela 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 BastidGuillaume BatigneDaniel BattistiniBoris BatyunyaDibakar BauriJose Luis Bazo AlbaIan Gardner BeardenPascal BechtDebadatta BeheraSwadhin BeheraIouri BelikovValerio Di BellaFrancesca BelliniRene BellwiedLucina Gabriela Espinoza BeltranYael Antonio Vasquez BeltranGyula BencediAdel BensaoulaStefania Maria BeoleYaroslav BerdnikovAnastasia BerdnikovaLuisa BergmannLorenzo BernardinisLatchezar BetevPartha Pratim BhaduriTushar BhallaAnju BhasinBuddhadeb BhattacharjeeSumit BhattaraiLivio BianchiJaroslav BielcikJana BielcikovaAnte BilandzicAnna BinoyGabor BiroSaikat BiswasDmitry BlauMihail Bogdan BlidaruNora BluhmeChristoph BlumeFriederike BockTea BodovaLaszlo 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 BucklandHenner BueschingStefania BufalinoPaul Alois BuhlerNazar BurmasovEdith Zinhle ButheleziAleksandr BylinkinChristopher Alfred CarrJuan 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 ChakrabortyJustin Wei Ong ChanSinjini ChandraSylvain ChapelandMarielle ChartierSouvik ChattopadhayMeiyi ChenTiantian ChengCvetan Valeriev CheshkovDavide ChiapparaVasco Miguel Chibante BarrosoDavid Dobrigkeit ChinellatoFabrizio ChinuEmma Sophia ChizzaliJaeyoon ChoSoyeon ChoPeter ChochulaZuzanna Anna ChochulskaPanagiotis ChristakoglouChristian Holm ChristensenPeter ChristiansenTatsuya ChujoMario CiaccoCorrado CicaloGabriele CimadorFederico CindoloFabio Filippo ColamariaDomenico 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 DanuAizat DaribayevaProttay 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 StrittoSilvia DelsantoGeovane Grossi Araujo de SouzaPreeti Dhankher LesserDomenico Di BariMarcello Di CostanzoAntonio Di MauroBenedetto Di RuzzaBatoul DiabYanchun DingJanik DitzelRoberto DiviaUliana DmitrievaAlexandru Florin DobrinBenjamin DonigusLars DopperJan Michal DubinskiAndrea DublaPascal DupieuxNatalia DzalaiovaTabea Maria EderRaymond James EhlersFlorian EisenhutRen EjimaDomenico EliaBarbara Ewa ErazmusFrancesca ErcolessiBruno EspagnonGiulio EulisseDavid EvansLaura FabbiettiGaia FabbriMattia FagginJulien FaivreFeng FanWenqing FanTao FangAlessandra FantoniMarkus FaselAlessandro FelicielloWenhui FengGrigorii FeofilovArturo Fernandez TellezLucas Ferrandi de OliveiraAndrea FerreroChiara FerreroAlessandro FerrettiVictor Jose Gaston FeuillardDmitry FinogeevFiorella FiondaAmanda Nicole FloresSiegfried Valentin FoertschIlya FokinSergey FokinUmberto FolloRobert ForynskiEnrico FragiacomoHenrik FribertUlrich FuchsNicola FunicelloChristophe FurgetArtur FursTakahiro FusayasuJens Joergen GaardhoejeMartino GagliardiAlberto Martin Gago MedinaTanu GahlautCarlos Duarte GalvanSarjeeta GamiParaskevi GanotiJose Maria Garabatos CuadradoJosue Martinez GarciaTonatiuh Garcia ChavezEdmundo Javier Garcia-SolisSara GarettiCorrado GargiuloPiotr Jan GasikHari Mohan GaurAmrit GautamMaria Beatriz de Leone GayMarie GermainRoman August 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PulawskiLuca 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 JauchHector David Regules MedelAttiq Ur RehmanFelix ReidtHaakon Andre Reme-NessKlaus Johannes ReygersRiccardo 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 RussekAnar RustamovYury RyabovAndrzej Krzysztof RybickiLevi Colt van RyderGeonmo RyuJaehyeok RyuWioleta RzesaBianca SabiuRita SadekSamrangy SadhuSergey SadovskiyArkaprabha SahaSwati SahaBhagyarathi SahooRaghunath SahooDushmanta SahuPradip Kumar SahuJogender SainiShingo SakaiSanjeev Singh SambyalDaniel SamitzIsabella SannaThiago Badaro SaramelaDebojit SarkarValerio SarritzuValentina Mantovani SartiUmberto SavinoSawan SawanEugenio ScapparoneJohann Joachim SchambachHorst Sebastian ScheidClaudiu Cornel SchiauaRainer Martin SchickerFelix SchlepperAlexander SchmahChristian Joachim SchmidtMartin SchmidtNicolas SchmidtJan SchongarthRomain SchotterAlexander WilhelmiJurgen SchukraftKai Oliver SchwedaGilda ScioliEnrico ScomparinJanet Elizabeth SegerYuko SekiguchiDaiki SekihataMariia SelinaIlya SelyuzhenkovSerhiy SenyukovJin Joo SeoDmitry SerebryakovLeonid SerkinLaura SerksnyteAdrian SevcencoTebogo Joyce ShabaAlexandre ShabetaiRuben ShahoyanBinti SharmaDeependra SharmaHimanshu SharmaMeenakshi SharmaSheetal SharmaTonmoy SharmaUpasana SharmaOveis SheibaniKenta ShigakiMaya Hachiya ShimomuraSergey ShirinkinQiye ShouYury SibiryakSabyasachi SiddhantaTeodor SiemiarczukTiago Fiorini da SilvaWillian da SilvaDavid Olle Rickard SilvermyrTawanchat SimantathammakulRadoslav SimeonovBalwan SinghBhawani SinghKamaljeet SinghRanbir SinghRavindra SinghSweta SinghVivek SinghVikas SinghalTinku Sarkar - SinhaBranislav SitarMario SittaBernhard SkaaliGeorgijs SkorodumovsNikolai SmirnovKrista Lizbeth SmithRaimond SnellingsEmilie Haugland SolheimChristian SonnabendJorine Mirjam SonneveldFrancesca SoramelAnalyce Bella Soto-HernandezRik SpijkersConstantin SporlederIwona Anna SputowskaJoey StaaJohanna StachelIonel StanTim StellhornStephan Friedrich StiefelmaierDiego StoccoIda StorehaugNicolas Justus StrangmannPeter StratmannSofia StrazziAlessandro SturnioloYoupeng SuAlexandre 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 ThomasNicolas TiltmannAnthony Robert TimminsAlberica ToiaRyoka TokumotoSofia TomassiniKeisuke TomohiroQiaomu TongNataliya TopilskayaVictor 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 VasileiouOton Vazquez DoceOmar Vazquez RuedaVladimir VecherninPaul VeenErmanno VercellinRahul VermaRobert VertesiMarta VerweijLinda VickovicZabulon VilakaziAnna VillaniCornelius Johannes de VilliersAlexander VinogradovTiziano VirgiliMaxim Mikael Olavi VirtaAlexander VodopyanovMartin Andreas VolklSergey VoloshinGiacomo VolpeBarthelemy von HallerIvan VorobyevNikita VozniukJanka VrlakovaJie WanChunzheng WangDongfang WangYuanzhe WangYubiao WangZhengqing WangFelix Thomas WeiglhoferSandro Christian WenzelJohannes Peter WesselsPiotr Kazimierz WiacekJens WiechulaJon WikneGrzegorz Andrzej WilkJeremy John WilkinsonGuido Alexander WillemsBernd Stefan WindelbandJonathan Caspar WitteMaksymilian WojnarJosephina Rae WrightChuntai WuWenya WuYitao WuKegang XiongZhenjun XiongLang XuRan XuAnkur YadavArun Kumar YadavYorito YamaguchiSeunghwan YangShiming YangSatoshi YanoZhenyu YeEmma Rose YeatsJie YiRuiqi YinZhongbao YinIn Kwon YooJin Hee YoonHyeonjin YuShiming YuanAlperen YuncuValentina ZaccoloChiara ZampolliFederica ZanoneNima ZardoshtiPetr ZavadaBiao ZhangChi ZhangLiuyao ZhangMaolin ZhangMingyu ZhangSong ZhangXiaoming ZhangYifei ZhangYuan ZhangZhen ZhangVladimir ZherebchevskiiZhi YuDaicui ZhouYou ZhouJianhui ZhuSenjie ZhuYa ZhuAlessandra ZingarettiStefan Cristi ZugravelNicola Zurlo
• Organismes : 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 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 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 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 des 2 Infinis Irène Joliot-Curie Laboratoire de Physique de Clermont Laboratoire de Physique Subatomique et de Cosmologie 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 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 Physique des 2 Infinis de Lyon Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique de Clermont

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Résumé : (Multi-)strange particle production rates and transverse momentum distributions are measured at midrapidity ($|y| < 0.5$) as a function of the charged-particle multiplicity density by the ALICE experiment at the LHC, using proton-proton collisions at a center-of-mass energy of ${\bf \sqrt{s}~=~5.02}$~TeV. This study extends similar studies performed at ${\bf \sqrt{s}~=~7}$~TeV and ${\bf \sqrt{s}~=~13}$~TeV to a lower energy regime, improving the statistical precision and extending the measurement to previously unexplored low-multiplicity regions. While $K_S^0$, $Λ$, and $Ξ$ yields can be described with a linear multiplicity dependence within uncertainties, the $Ω$ yields follow a significantly faster than linear increasing trend. For all analyzed particles, the overall production rate is consistent with those observed at higher energy and at similar multiplicity densities. Transverse momentum distributions are observed to evolve with multiplicity. Several state-of-the-art QCD-inspired Monte Carlo models have been compared to the data, testing some recently introduced features to address the findings at higher energies. Models can qualitatively describe the transverse momentum spectra and the $Λ/K_S^0$ spectral ratio only if collectivity is introduced in the evolution of the system.

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Source

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• Type de publi. : Pré-publication, Document de travail
• Date de publi. : 25/11/2025
• Auteurs : Ibrahim Jaser AbualrobShreyasi AcharyaGianluca Aglieri RinellaLuca AgliettaNeelima AgrawalZubayer AhammedShakeel AhmadIshaan AhujaZulkaida AkbarAlexander AkindinovValentina AkishinaMohammad Al-TuranyDmitry AleksandrovBruno AlessandroJose Ruben Alfaro MolinaBushra AliAndrea AliciAnton AlkinJohan AlmeGiacomo AloccoTorsten AltIgor AltsybeevCristian AndreiNicodemos AndreouAnton AndronicEvgeny AndronovMassimo AngelettiVenelin AnguelovFederico AntinoriPietro AntonioliNicole ApadulaHarald AppelshaeuserSilvia ArcelliRoberta ArnaldiJhoao Gabriel Martins Campos Almeida ArneiroIonut Cristian ArseneMesut ArslandokAndre AugustinusRalf Peter AverbeckMohd Danish AzmiHitoshi BabaAkash Raj John BabuAngela 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 BastidGuillaume BatigneDaniel BattistiniBoris BatyunyaDibakar BauriJose Luis Bazo AlbaIan Gardner BeardenPascal BechtDebadatta BeheraSwadhin BeheraIouri BelikovValerio Di BellaFrancesca BelliniRene BellwiedLucina Gabriela Espinoza BeltranYael Antonio Vasquez BeltranGyula BencediAdel BensaoulaStefania Maria BeoleYaroslav BerdnikovAnastasia BerdnikovaLuisa BergmannLorenzo BernardinisLatchezar BetevPartha Pratim BhaduriTushar BhallaAnju BhasinBuddhadeb BhattacharjeeSumit BhattaraiLivio BianchiJaroslav BielcikJana BielcikovaAnte BilandzicAnna BinoyGabor BiroSaikat BiswasDmitry BlauMihail Bogdan BlidaruNora BluhmeChristoph BlumeFriederike BockTea BodovaLaszlo 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 BucklandHenner BueschingStefania BufalinoPaul Alois BuhlerNazar BurmasovEdith Zinhle ButheleziAleksandr BylinkinChristopher Alfred CarrJuan 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 ChakrabortyJustin Wei Ong ChanSinjini ChandraSylvain ChapelandMarielle ChartierSouvik ChattopadhayMeiyi ChenTiantian ChengCvetan Valeriev CheshkovDavide ChiapparaVasco Miguel Chibante BarrosoDavid Dobrigkeit ChinellatoFabrizio ChinuEmma Sophia ChizzaliJaeyoon ChoSoyeon ChoPeter ChochulaZuzanna Anna ChochulskaPanagiotis ChristakoglouChristian Holm ChristensenPeter ChristiansenTatsuya ChujoMario 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• Organismes : 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 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 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 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 des 2 Infinis Irène Joliot-Curie Laboratoire de Physique de Clermont Laboratoire de Physique Subatomique et de Cosmologie 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 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 Physique des 2 Infinis de Lyon Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique de Clermont

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Résumé : The probability to observe a specific number of strange and multi-strange hadrons ($n_s$), denoted as $P(n_s)$, is measured by ALICE at midrapidity ($|y|<0.5$) in $\sqrt{s} = 5.02$ TeV proton-proton (pp) collisions, dividing events into several multiplicity-density classes. Exploiting a novel technique based on counting the number of strange-particle candidates event-by-event, this measurement allows one to extend the study of strangeness production beyond the mean of the distribution. This constitutes a new test bench for production mechanisms, probing events with a large imbalance between strange and non-strange content. The analysis of a large-statistics data sample makes it possible to extract $P(n_s)$ up to a maximum $n_s$ of 7 for K$^{0}_{\rm s}$, 5 for $Λ$ and $\barΛ$, 4 for $Ξ^-$ and $Ξ^+$, and 2 for $Ω^-$ and $Ω^+$. From this, the probability of producing strange hadron multiplets per event is calculated, thereby enabling the extension of the study of strangeness enhancement to extreme situations where several strange quarks hadronize in a single event at midrapidity. Moreover, comparing hadron combinations with different $\it{u}$ and $\it{d}$ quark compositions and equal overall $s$ quark content, the contribution to the enhancement pattern coming from non-strangeness related mechanisms is isolated. The results are compared with state-of-the-art phenomenological models implemented in commonly used Monte Carlo event generators, including PYTHIA 8 Monash 2013, PYTHIA 8 with QCD-based Color Reconnection and Rope Hadronization (QCD-CR + Ropes), and EPOS LHC, which incorporates both partonic interactions and hydrodynamic evolution. These comparisons show that the new approach dramatically enhances the sensitivity to the different underlying physics mechanisms modeled by each generator.

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Source

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• Type de publi. : Pré-publication, Document de travail
• Date de publi. : 25/11/2025
• Auteurs : Ibrahim Jaser AbualrobShreyasi AcharyaGianluca Aglieri RinellaLuca AgliettaNeelima AgrawalZubayer AhammedShakeel AhmadIshaan AhujaZulkaida AkbarAlexander AkindinovValentina AkishinaMohammad Al-TuranyDmitry AleksandrovBruno AlessandroJose Ruben Alfaro MolinaBushra AliAndrea AliciAnton AlkinJohan AlmeGiacomo AloccoTorsten AltIgor AltsybeevCristian AndreiNicodemos AndreouAnton AndronicEvgeny AndronovMassimo AngelettiVenelin AnguelovFederico AntinoriPietro AntonioliNicole ApadulaHarald AppelshaeuserSilvia ArcelliRoberta ArnaldiJhoao Gabriel Martins Campos Almeida ArneiroIonut Cristian ArseneMesut ArslandokAndre AugustinusRalf Peter AverbeckMohd Danish AzmiHitoshi BabaAkash Raj John BabuAngela 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 BastidGuillaume BatigneDaniel BattistiniBoris BatyunyaLuca BaudinoDibakar BauriJose Luis Bazo AlbaIan Gardner BeardenPascal BechtDebadatta BeheraSwadhin BeheraIouri BelikovValerio Di BellaFrancesca BelliniRene BellwiedLucina Gabriela Espinoza BeltranYael Antonio Vasquez BeltranGyula BencediAdel BensaoulaStefania Maria BeoleYaroslav BerdnikovAnastasia BerdnikovaLuisa BergmannLorenzo BernardinisLatchezar BetevPartha Pratim BhaduriTushar BhallaAnju BhasinBuddhadeb BhattacharjeeSumit BhattaraiLivio BianchiJaroslav BielcikJana BielcikovaAnte BilandzicAnna BinoyGabor BiroSaikat BiswasDmitry BlauMihail Bogdan BlidaruNora BluhmeChristoph BlumeFriederike BockTea BodovaLaszlo BoldizsarMarek BombaraPeter Matthew BondGermano BonomiHerve BorelAlexander BorissovAndres Gerardo Borquez CarcamoElena BottaNaseem BouchharYoussef El Mard BouzianiDiana Catalina BrandiburLars BratrudPeter Braun-MunzingerMarco 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• Organismes : Institut de Physique des 2 Infinis de Lyon 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 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 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 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 des 2 Infinis Irène Joliot-Curie Laboratoire de Physique de Clermont Laboratoire de Physique Subatomique et de Cosmologie 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 subatomique et des technologies associées Laboratoire de Physique des 2 Infinis Irène Joliot-Curie 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 Institut de Physique des 2 Infinis de Lyon Institut de Recherches sur les lois Fondamentales de l'Univers Institut de Physique des 2 Infinis de Lyon Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique de Clermont

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Résumé : Particle identification (PID) is a fundamental aspect of the ALICE detector system, central to its heavy-ion and proton-proton physics programs. Among the different PID strategies, ALICE uses the Time-Of-Flight (TOF) detector to identify particles at intermediate momenta ($0.5 < p_{\rm T} < 4$ GeV/$c$). The ALICE TOF detector performed successfully during the first ten years of LHC operations. During the Long Shutdown 2, many ALICE sub-detectors, including TOF, were upgraded to fully leverage the targeted 50 kHz interaction rate of Pb-Pb collisions, which required the implementation of a continuous readout scheme. The TOF detector electronics were upgraded and refurbished, while processing algorithms for data quality control, reconstruction, calibration, and analysis were rewritten. This paper presents the upgraded TOF detector operation and calibration procedures and its performance in terms of timing resolution, a key factor for particle separation in ALICE analyses. Using 2022 pp collision data at $\sqrt{s} = 13.6$ TeV from Run 3, the time resolution of the detector was estimated with two independent methods, both yielding consistent results, better than 80 ps. Despite the excellent performance already achieved, further improvements are expected after additional detector commissioning and refined calibration procedures, thus enhancing the ALICE PID capabilities for Run 3 and beyond.

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Source

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• Type de publi. : Pré-publication, Document de travail
• Date de publi. : 25/11/2025
• Auteurs : Saeed AbbasluFatima Abd AlrahmanAdam Abed AbudRoberto AcciarriLuiz Paulo AccorsiMario AceroMarcio AdamesGeorge AdamovMark AdamowskiKrittika AdhikariCris AdrianoFaiza AkbarFrancesca AlemannoNimmy Sarah AlexLeonidas Aliaga SoplinMunera AlrashedAndrew AltonRodrigo AlvarezTiago AlvesAdil AmanHamza AmarPablo AmedoJohn AndersonDiego Andrade AldanaCostas AndreopoulosMirco AndreottiMichael P AndrewsFenompanirina AndrianalaSofia AndringaFleuri AnjarazafySaeed AnsarifardDiana AnticAlfredo Aranda-FernandezTatiana Araya-SantanderLuciano ArellanoEnrique Arrieta DiazManuel ArroyaveMaria Artero PonsJonathan AsaadiMarvin AscencioAdi AshkenaziDavid AsnerLily AsquithEdward AtkinDidier AugusteAdam AurisanoVladimir AushevDario AutieroDaniel Ávila GómezMuhammad Bilal AzamFarrukh AzfarJohn BackYuri BaeIuri BagaturiaLinda BagbySupraja BalasubramanianAnna BalboniPierre BaldiWander BaldiniJacobo BaldonedoBruce BallerBindu BambahFernando BaraoDenis BarbuGabriela BarenboimPablo Barham AlzásGary BarkerWayne BarkhouseEsra Barlas YucelGiles BarrNuno BarrosDaniel BarrowJoshua BarrowAnastasia Basharina-FreshvilleAmit BashyalVincent BasqueMarco BassaniDhrubojyoti BasuLars Bathe-PetersJames BattatFederico BattistiJanelly BautistaFatih BayJosé Luis Bazo AlbaJohn BeacomEdouard BechetoilleAnna BeeverBiswaranjan BeheraEwerton BelchiorBeryl BellGerard BellLeo BellantoniGiorgio BellettiniVincenzo BelliniOlga BeltramelloCarlos Benitez MontielDouglas BenjaminFrancisco Bento NevesJoshua BergerSophie BerkmanJudilka BermudezJavier BernalPaolo BernardiniAndrea BersaniEmilie BertholetElenora BertoliniSergio BertolucciMinerba BetancourtAmalia Betancur RodríguezYashwanth BezawadaAnibal BezerraAvinay BhatVipin BhatnagarMaharnab BhattacharjeeSaikat BhattacharjeeMeghna BhattacharyaShyam BhullerBipul BhuyanSimone BiagiJianming BianKurt BieryBurak BilkiMary BishaiPaul BishopAndrew BlakeAdrien BlanchetFlor BlaszczykGerald BlazeyEdward BlucherArie BodekBenjamin BogartJan BoissevainSara BolognesiTimothy BoltonLuca BombenMaurizio BonesiniCesar Bonilla-DiazAlexander BoothFatma BoranCasey BordenRafael Borges MerloNilay BostanGabriel BotogoskeBianca BottinoRaphael BouetJacob BozaBarnali BrahmaDominic BrailsfordFilippo BramatiAntonio BrancaAndrew BrandtJohan BremerStephen BriceVanessa BrioClaudia BrizzolariCarl BrombergJim BrookeAlan BrossGiulia BrunettiMaria Brigida BrunettiNorman BuchananHoward BuddJonas BuergiAaron BundockDustin BurgardtSophie ButchartGian Caceres VeraRoberta CalabreseRoberto CalabreseJacob CalcuttLivio CaliversSteven CalvezEnrique CalvoAlessio CaminataAmelia CaminoWallison CampanelliAlice CampaniAxel Campos BenitezNicola CanciJordi CapóIoana CaracasDavid CaratelliDaniel CarberGabriella CariniBruno CarlusMateus CarneiroPaolo CarnitiIvan Caro TerrazasHector CarranzaNicholas CarraraLauren CarrollAlex CarterEnrique CasarejosDenise CasazzaJavier Castaño ForeroFabian Castaño UsugaCesar CastromonteErika Catano-MurCarla CattadoriFabien CavalierFlavio CavannaSandro CentroGiuseppe CeratiCédric CernaAlberto CervelliAnselmo Cervera VillanuevaJaafar ChakraniMichel ChalifourAndrew ChappellAnimesh ChatterjeeBhavesh ChauhanCarlos Chavez BarajasHucheng ChenMu-Chun ChenWen Chao ChenYifan ChenZhengyang ChenDaniel CherdackSimranjit Singh ChhibraCheng-Yi ChiFrancesco ChiapponiRobert ChircoNamitha ChitirasreemadamKihyeon ChoSarah ChoateGweneth ChoiDavid ChokheliPooi ChongOscar ChowBarnali ChowdhuryDavid ChristianMoses ChungEric ChurchMaria Flavia CicalaMagda CicerchiaValentina CiceroRiccardo CioliniPeter ClarkeGordon ClineAlfredo CoccoJoao CoelhoAriel CohenJoaquin CollazoJohann CollotHarrison CombsJanet M ConradLivio ContiTaylor ContrerasMark ConveryKyle ConwaySimone CopelloPaolo CovaCallum CoxLinda CremonesiJosé Crespo-AnadónMichael CrislerEsteban CristaldoJason CrnkovicGordon CroneRyan CrossThiago CruzAndrew CuddClara CuestaYanou CuiFrancesca CurciarelloDavid CussansJoel DaiOlivia DalagerWilliam DallawayRiccardo d'AmicoHelio da MottaZubair DarRobert DarbyLeonardo da Silva PeresQuentin DavidGavin DaviesStefano DaviniJaime DawsonRenan de AguiarPaul DebbinsM. 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Söldner-RemboldNickolas SolomeyVladimir SolovovWalter SondheimTom SoniusMatteo SorbaraMichel SorelJose Soto-OtonAlexandre SousaKarel SoustruznikDaniel Souza CorreiaFranco SpinellaJoshua SpitzNeil SpoonerDeigo StalderMichelle StancariLuca StancoJacob SteenisRaul SteinHerbert M SteinerAndré Steklain LisbôaJames StewartBen StillwellJason StockTyler StokesThomas StraussLouis StrigariAlexander StuartWanyun SuJoeal SubashAntonio SurdoLouise SuterAndrew SuttonYury SuvorovRobert SvobodaSanjay SwainCathal SweeneyBarbara SzczerbinskaAndrzej SzelcArtur SztucAlessandra TaffaraNibir TalukdarJose TamaraHirohisa TanakaShaochun TangNatsumi TaniuchiAlex Tapia CasanovaAlexander TapperSalman TariqE TatarRex TayloeAbraham Meles TekluKarla Tellez Giron FloresJulia Tena VidalPeter TennessenMatteo TentiKazuhiro TeraoFrancesco TerranovaSimon TeruelGemma TesteraTarak ThakoreAlessandro TheaSierra ThomasAdrian ThompsonChristopher ThorpeMadan TimalsinaSteven C TimmEmrah TirasVladimir TishchenkoShivanshi 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• Organismes : Laboratoire de l'Accélérateur Linéaire Institut de Physique des 2 Infinis de Lyon Institut de Physique des 2 Infinis de Lyon Commissariat à l'énergie atomique et aux énergies alternatives Laboratoire de Physique Subatomique et de Cosmologie Institut de Physique des 2 Infinis de Lyon Laboratoire de l'Accélérateur Linéaire AstroParticule et Cosmologie AstroParticule et Cosmologie Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de Physique Subatomique et de Cosmologie Institut de Physique des 2 Infinis de Lyon AstroParticule et Cosmologie Laboratoire d'Annecy de Physique des Particules Institut de Physique des 2 Infinis de Lyon Commissariat à l'énergie atomique et aux énergies alternatives Institut de Physique des 2 Infinis de Lyon Laboratoire d'Annecy de Physique des Particules AstroParticule et Cosmologie Institut de Physique des 2 Infinis de Lyon Laboratoire d'Annecy de Physique des Particules AstroParticule et Cosmologie Laboratoire de l'Accélérateur Linéaire Laboratoire d'Annecy de Physique des Particules Laboratoire de l'Accélérateur Linéaire Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de l'Accélérateur Linéaire Laboratoire de l'Accélérateur Linéaire Laboratoire d'Annecy de Physique des Particules Laboratoire de l'Accélérateur Linéaire Laboratoire d'Annecy de Physique des Particules AstroParticule et Cosmologie Laboratoire de Physique Subatomique et de Cosmologie AstroParticule et Cosmologie Institut de Physique des 2 Infinis de Lyon Laboratoire d'Annecy de Physique des Particules Institut de Physique des 2 Infinis de Lyon AstroParticule et Cosmologie Laboratoire de l'Accélérateur Linéaire Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de Physique Subatomique et de Cosmologie Laboratoire de l'Accélérateur Linéaire Laboratoire de l'Accélérateur Linéaire AstroParticule et Cosmologie Laboratoire de l'Accélérateur Linéaire AstroParticule et Cosmologie AstroParticule et Cosmologie AstroParticule et Cosmologie Laboratoire d'Annecy de Physique des Particules

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Résumé : The ProtoDUNE-SP detector, a kiloton-scale prototype for the Deep Underground Neutrino Experiment (DUNE), is the largest liquid argon time projection chamber built to date. Operated at CERN from 2018 to 2020, it collected both cosmic-ray data and a beam consisting of positively-charged particles with discrete momentum settings across a range of 0.3 GeV/$c$ to 7 GeV/$c$. In this letter, we report the total inelastic cross section measurements for $π^+$-Ar and $p$-Ar interactions using selected $π^+$ and proton samples from the 1 GeV/$c$ beam data. These results provide the first measurement of the total inelastic cross sections for $π^+$-Ar in the 500-900 MeV kinetic energy range and for $p$-Ar below 450 MeV, both of which are directly relevant to the DUNE energy range. The measured cross sections are consistent with predictions and provide a dataset that was previously unavailable for argon targets. These measurements are essential for constraining neutrino-argon interaction models, which are crucial for the precision physics goals of the upcoming DUNE experiment.

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