Philippe Jean-Pierre

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• Type de publi. : Pré-publication, Document de travail
• Date de publi. : 23/09/2025
• Auteurs : Saeed AbbasluAdam Abed AbudRoberto AcciarriLuiz Paulo AccorsiMario AceroMarcio AdamesGeorge AdamovMark AdamowskiCris AdrianoFaiza AkbarFrancesca AlemannoNimmy Sarah AlexKyle AllisonMunera AlrashedAndrew AltonRodrigo AlvarezTiago AlvesAdil AmanHamza AmarPablo AmedoJohn AndersonDiego Andrade AldanaCostas AndreopoulosMirco AndreottiMichael P AndrewsFenompanirina AndrianalaSofia AndringaFleuri AnjarazafySaeed AnsarifardDiana AnticMarcelo AntoniassiAlfredo Aranda-FernandezLuciano ArellanoEnrique Arrieta DiazManuel ArroyaveMaria ArteroponsJonathan AsaadiMarvin AscencioAdi AshkenaziDavid AsnerLily AsquithEdward AtkinDidier AugusteAdam AurisanoVladimir AushevDario AutieroDaniel Ávila GómezMuhammad Bilal AzamFarrukh AzfarAshley BackJohn BackYuri BaeIuri BagaturiaLinda BagbyDosbol BaigarashevSupraja BalasubramanianAnna BalboniPierre BaldiWander BaldiniJacobo BaldonedoBruce BallerBindu BambahFernando BaraoDenis BarbuGabriela BarenboimPablo Barham AlzásGary BarkerWayne BarkhouseGiles BarrAdilson BarrosNuno BarrosDaniel BarrowJoshua BarrowAnastasia Basharina-FreshvilleAmit BashyalVincent BasqueMarco BassaniDhrubojyoti BasuCharlie BatchelorLars Bathe-PetersJames BattatFederico BattistiJanelly BautistaFatih BayJosé Luis Bazo AlbaJohn BeacomEdouard BechetoilleBiswaranjan BeheraEwerton BelchiorBeryl BellGerard BellLeo BellantoniGiorgio BellettiniVincenzo BelliniOlga BeltramelloAndrey BelyaevCarlos 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 BishaiAndrew BlakeFlor BlaszczykGerald BlazeyEdward BlucherBenjamin BogartJan BoissevainSara BolognesiTimothy BoltonLuca BombenMaurizio BonesiniCesar Bonilla-DiazAlexander BoothFatma BoranRafael Borges MerloNilay BostanGabriel BotogoskeBianca BottinoRaphael BouetJacob BozaJuraj BracinikBarnali 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 CaliversEnrique CalvoAlessio CaminataAmelia CaminoWallison CampanelliAlice CampaniAxel Campos BenitezNicola CanciJordi CapóIoana CaracasDavid CaratelliDaniel CarberJuan CarcellerGabriella CariniBruno CarlusMateus CarneiroPaolo CarnitiIvan Caro TerrazasHector CarranzaNicholas CarraraLauren CarrollThomas 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 ChongBarnali 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 CrossAndrew 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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• 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 des Deux Infinis Bordeaux 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 Laboratoire de l'Accélérateur Linéaire 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 Laboratoire de Physique des Deux Infinis Bordeaux AstroParticule et Cosmologie Laboratoire de l'Accélérateur Linéaire Laboratoire de Physique des Deux Infinis Bordeaux 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 Physique des Deux Infinis Bordeaux 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 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 Institut de Physique des 2 Infinis de Lyon 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 2x2 Demonstrator, a prototype for the Deep Underground Neutrino Experiment (DUNE) liquid argon (LAr) Near Detector, was exposed to the Neutrinos from the Main Injector (NuMI) neutrino beam at Fermi National Accelerator Laboratory (Fermilab). This detector prototypes a new modular design for a liquid argon time-projection chamber (LArTPC), comprised of a two-by-two array of four modules, each further segmented into two optically-isolated LArTPCs. The 2x2 Demonstrator features a number of pioneering technologies, including a low-profile resistive field shell to establish drift fields, native 3D ionization pixelated imaging, and a high-coverage dielectric light readout system. The 2.4 tonne active mass detector is flanked upstream and downstream by supplemental solid-scintillator tracking planes, repurposed from the MINERvA experiment, which track ionizing particles exiting the argon volume. The antineutrino beam data collected by the detector over a 4.5 day period in 2024 include over 30,000 neutrino interactions in the LAr active volume-the first neutrino interactions reported by a DUNE detector prototype. During its physics-quality run, the 2x2 Demonstrator operated at a nominal drift field of 500 V/cm and maintained good LAr purity, with a stable electron lifetime of approximately 1.25 ms. This paper describes the detector and supporting systems, summarizes the installation and commissioning, and presents the initial validation of collected NuMI beam and off-beam self-triggers. In addition, it highlights observed interactions in the detector volume, including candidate muon anti-neutrino events.

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Source

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• Type de publi. : Pré-publication, Document de travail
• Date de publi. : 23/09/2025
• Auteurs : Roel AaijAhmed Sameh Wagih AbdelmottelebCarlos Abellan BetetaFernando Jesus AbudinénThomas AckernleyAyomide Matthew AdefisoyeBernardo AdevaMarco AdinolfiPatrik Harri AdlarsonChristina AgapopoulouChristine Angela AidalaZiad AjaltouniSimon AkarKazuyoshi AkibaPietro AlbicoccoJohannes AlbrechtRamunas AleksiejunasFederico AlessioZakariya AliouchePaula Alvarez CartelleRenaud AmalricSandra AmatoJake Lewis AmeyYasmine AmhisLiupan AnLucio AnderliniMartin AnderssonPasquale AndreolaMirco AndreottiSergio Andres EstradaAlessia AnelliDong AoFlavio ArchilliZaratsyan AregMatteo ArgentonSergio Arguedas CuendisAlexander ArtamonovMarina ArtusoElie AslanidesRita Ataíde da SilvaMichele AtzeniBenjamin AudurierJuliette AuthierDavid BacherIrene Bachiller PereaSebastian BachmannMarie BachmayerJohn BackPablo Baladron RodriguezVladislav BalaguraAnna BalboniWander BaldiniLuca BalzaniHaoran BaoJuan Baptista de Souza LeiteCarlos Javier Barbero PretelMatteo BarbettiIvanildo Rui BarbosaRoger BarlowMikhail BarnyakovSergey BarsukWilliam BarterJustin BartzSaliha BashirBaasansuren BatsukhPiera BattistaAurelio BayAnja BeckMaik BeckerFranco BedeschiIgnacio BediagaNoah Albin BehlingSamuel BelinKonstantin BelousIlia BelovIvan BelyaevGaya BenaneGiovanni BencivenniEli Ben-HaimAlexander BerezhnoyRoland BernetSergi Bernet AndresAlessandro BertolinChristopher BetancourtFederico BettiJosh BexIaroslava BezshyikoOleg BezshyykoJihyun BhomMartin Stefan BiekerNicolo Vladi BiesuzPierre BilloirAlice BiolchiniMatthew BirchFionn Caitlin Ros BishopAlexander BitadzeAndrea BizzetiThomas BlakeFrederic BlancJonah Evan BlankSteven BluskVladimir BocharnikovJulian Alexander BoelhauveOscar Boente GarciaThomas BoettcherAbhishek BohareAlexey BoldyrevCarolina BolognaniRiccardo BolzonellaRiccardo BonacciNikolay BondarAleksandar BordeliusFederica BorgatoSilvia BorghiMartino BorsatoJozef Tomasz BorsukElia BottalicoSonia Amina BouchibaMarcelo BovillThemistocles BowcockAlexandre BoyerConcezio BozziJames Daniel BrandenburgAlexandre Brea RodriguezNils BreerJolanta BrodzickaArnau Brossa GonzaloJames David BrownDavide BrunduEmma BuchananLaura BuonincontriMarta Burgos MarcosAodhan Tomas BurkeChristopher BurrJordy Sebastiaan ButterJan BuytaertWiktor ByczynskiSandro CadedduHao CaiYuman CaiAlois CailletRoberto CalabreseSaul Calderon RamirezLukas CaleficeStefano CaliMarta CalviMiriam Calvo GomezPatricia Camargo MagalhaesJose Ivan Cambon BouzasPierluigi CampanaDaniel Hugo Campora PerezAngel Fernando Campoverde QuezadaSimone CapelliLorenzo CapriottiRonald Gerardo Caravaca-MoraAngelo CarboneLidia Carcedo SalgadoRoberta CardinaleAlessandro CardiniPaolo CarnitiLeon David CarusAdrian Casais VidalRowina CasparyGianluigi CasseMarco CattaneoGiovanni CavalleroViola CavalliniSara CelaniSara CesareAbbie Jane ChadwickIbrahim ChahrourHao ChangMatthew CharlesPhilippe CharpentierEvridki ChatzianagnostouRacha CheaibMaximilien ChefdevilleChen ChenJou-An ChenShanzhen ChenZewen ChenMostafa CherifAleksei ChernovSerhii ChernyshenkoXenofon ChiotopoulosVeronika ChobanovaMarcin ChrzaszczAleksei ChubykinVladimir ChulikovPaolo CiambroneXabier Cid VidalGregory CiezarekPierfrancesco CifraPeter ClarkeMarco ClemencicHarry CliffJoel ClosierCarlos Eduardo Cocha ToapaxiVictor CocoJulien CoganEric CognerasLucian CojocariuSpencer Edward CollavitiPaula CollinsTommaso ColomboMarco ColonnaAlbert Comerma-MontellsLiliana CongedoJames ConnaughtonAndrea ContuNaomi CookeChristian Andres CoronelImanol CorredoiraAnthony CorreiaGloria CortiJozie Cottee MeldrumBenjamin CouturierDaniel Charles CraikMelissa Maria Cruz TorresEsteban Curras RiveraRobert CurrieCesar Luiz da SilvaShakhzod DadabaevLingyun DaiXinchen DaiElena Dall'OccoJeremy DalsenoCarmelo d'AmbrosioJessy DanielPhilippe d'ArgentGabriella DarzeAlexander DavidsonJonathan Edward DaviesOscar de Aguiar FranciscoCamilla de AngelisFederico de BenedettiJan de BoerKristof de BruynStefano de CapuaMichel de CianUlisses de Freitas Carneiro da GracaErika de LuciaJussara de MirandaLeandro de PaulaMarilisa de SerioPatrizia de SimoneFabio de VellisJacco de VriesFrancesco DebernardisDaniel DecampSam Michael DekkersLuigi del BuonoBlaise DelaneyHans Peter DembinskiJianqiao DengVadym DenysenkoOlivier DeschampsFrancesco DettoriBiplab DeyPasquale Di NezzaIgor DiachkovSergey DidenkoShuchong DingYiyang DingLucas DittmannVasyl DobishukAleksandrina DochevaAlex Patrick DohenyChenzhi DongAmanda May DonohoeFrancesca DordeiAlberto dos ReisAndrew Jay DowlingLea Marie Sophie DreyfusWeisong DuanPiotr Jakub DudaMaciej Wojciech DudekLaurent DufourViacheslav DukPaolo DuranteMaciej DurasJohn Matthew DurhamOzgur DurmusAgnieszka DziurdaAlexey DzyubaSajan EasoEllinor EcksteinUlrik EgedeArtem EgorychevVictor EgorychevStephan EisenhardtEnoch EjopuLars EklundMohamed ElashriJan Hendrik EllbrachtScott ElyAlexandru EneJonas Nathanael EschleSevda EsenTimothy EvansFederica FabianoSaba FaghihLucas FalcaoBo FangRiccardo FantechiLisa FantiniMaria FariaKeira Gwyn FarmerDavide FazziniLukasz 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HanStephanie Hansmann-MenzemerLei HaoNeville HarnewThomas James HarrisMarie HartmannSabin HashmiJibo HeAndreea-Irina HedesFrederic HemmerConor HendersonRaoul HendersonRiley Dylan Leslie HendersonArthur Marius HennequinKarol HennessyLouis HenryJames Daniel HerdPaula Herrero GasconJohannes HeuelAdlène HicheurGuillermo Hijano MendizabalJoshua Ethan HorswillRuiwen HouYingrui HouDylan Cameron HoustonNed Francis HowarthJifeng HuWenhua HuXiaofan HuWouter HulsbergenRoss John HunterMikhail HushchynDavid HutchcroftMarek IdzikDmitrii IlinPhilip IltenAleksandr IniukhinAxel IohnerArtur IshteevKuzma IvshinHendrik JageSergio Javier Jaimes EllesSune JakobsenEddy JansBrij Kishor JashalAbolhassan JawaheryChanka JayaweeraVukan JevticZekun JiaEmily Kaiyin JiangXiaojie JiangYi JiangYuyang JiangEsteban Jimenez MoyaNicholas JindalMalcolm JohnAllen Cris John Rubesh RajanDaniel JohnsonChristopher JonesSalil JoshiBeat JostJuan Jose Juan CastellaNathan JurikIzabela JuszczakDimitrios KaminarisSergii KandybeiMichael James KaneYouen KangChandiprasad KarMatthias KaracsonAnni KauniskangasJacob William KautzMichal Krzysztof KazaneckiFloris KeizerMatthew KenzieTjeerd KetelBasem KhanjiAnastasiia KharisovaSergei KholodenkoGaelle KhreichThomas KirnVeronica Soelund KirsebomOuail KitouniSuzanne KlaverNico KleijneDenys KlekotsKonrad KlimaszewskiMateusz Rafal KmiecSerhii KoliievLars KolkAnatoly KonoplyannikovPawel KopciewiczPatrick KoppenburgAlexander KorchinMikhail KorolevIgor KostiukOleksander KotSofia KotriakhovaElizabeth Marie KowalczykAnastasiia KozachukPolina KravchenkoLeonid KravchukOleg KravcovMichal KrepsPavel KrokovnyWojciech KrupaWojciech KrzemienOleksandr KshyvanskyiSebastian Antoni KubisMarcin KucharczykVasily KudryavtsevEvgenia KulikovaAndrzej KupscVolodymyr KushnirBogdan KutsenkoJakub KvapilIgor KyryllinDaniel LacarrerePaloma Laguarta GonzalezAdriano LaiAndrea LampisDavide LancieriniClara Landesa GomezJohn Jake LaneGaia LanfranchiChristoph LangenbruchJan LangerOliver LantwinThomas LathamFederico LazzariCristina LazzeroniRenaud Le GacHo Sang LeeRegis LefèvreAlexander LeflatSergey LegotinMarion LehurauxEdgar Lemos CidOlivier LeroyTadeusz LesiakEzra Douglas LesserBlake LeveringtonAnfeng LiChen LiChing-Hua LiHengne LiJiuzhao LiKechen LiLanxing LiManshu LiPeilian LiPei-Rong LiQinze LiTiange LiTianqi LiYanru LiYiming LiYujie LiZhengchen LianQiming LiangXixin LiangZhihua LiangSimone LibralonAlisha LightbodyChuangxin LinTai-Hua LinRolf LindnerHenry James LintonRoman LitvinovDuanqing LiuFrank Xiangyu LiuGuoming LiuKai LiuShuaiyi LiuWeijie LiuYiming LiuYing LiuYiwei LiuGustavo Alejandro Loachamin OrdonezAniol Lobo SalviaAngelo LoiThomas LongFelipe Cesario Laterza LopesJose LopesAlbert Lopez HuertasCristina Lopez IribarnegaraySaúl López SoliñoQiuchan LuChiara LucarelliDonatella LucchesiMiriam Lucio MartinezYiheng LuoAnna LupatoEleonora LuppiKate LynchXiao-Rui LyuGe MaSerena MaccoliniFrederic MachefertFlorin MaciucBridget MackInnes MackayLauren Grace MackeyLakshan Ram Madhan MohanMarcus Jonathan MaduraiDaniel MagdalinskiDmitrii MaisuzenkoJakub Jacek MalczewskiSneha MaldeLorenzo MalentaccaAlexander MalininTimofei MaltsevGiulia MancaGiampiero MancinelliChiara MancusoRafel Manera EscaleroFederico ManganellaDaniele ManuzziDaniele MarangottoJean François MarchandRadoslav MarchevskiUmberto MarconiEdoardo MarianiSaverio MarianiCarla Marin BenitoJörg MarksAlexander Mclean MarshallLucas MartelGabriele MartelliGiuseppe MartellottiLoris MartinazzoliMaurizio MartinelliDaniel Guillermo Martinez GomezDiego Martinez SantosFernando Martinez VidalAlexia Martorell GranollersAndré MassafferriRosen MatevAbhijit MathadViacheslav MatiuninClara MatteuzziKara Renee MattioliAndrea MauriEmilie MauriceJoan MauricioPierre Paul Louis MayencourtJose Mazorra de CosMichal MazurekMichael MccannTamaki Holly McgrathNiall Thomas MchughAndrew McnabRonan McnultyBrian MeadowsGerwin MeierDmytro MelnychukDiego Mendoza GranadaFanjie MengMarcel MerkAndrea MerliLucas Meyer GarciaDexing MiaoHan MiaoMikhail MikhasenkoDiego Alejandro MilanesAlessandro MinottiElisa MinucciTristan MirallesBiljana MitreskaDominik Stefan MitzelAtanu ModakLeandra MoeserRazvan-Daniel MoiseEsteban Felipe Molina CardenasTitus MombächerMatthew David MonkStephane MonteilAngel Morcillo GomezGianfranco MorelloMichael Joseph MorelloMaurice Pierre MorgenthalerJakub MoronWouter MorrenAdam Benjamin MorrisAndrew George MorrisRaymond MountainHongjie MuZeqing MuEmir MuhammadFranz MuheimMick MulderKatharina MüllerFederico Muñoz-RojasRebecca MurtaViktor MytrochenkoParas NaikTatsuya NakadaRaja NandakumarTara NanutIrina NastevaMatthew NeedhamEvgeniia NekrasovaNicola NeriSebastian NeubertNiko NeufeldPetr NeustroevJanina NicoliniDavide NicotraElisabeth Maria NielNikolay NikitinQile NiuPedro NogarolliPiet NoggaCamille NormandJulio Novoa FernandezGabriel Matthew NowakCynthia NunezHavva Hasret NurAgnieszka Oblakowska-MuchaVladimir ObraztsovThomas OeserArtem OkhotnikovOleksandr OkhrimenkoRudolf OldemanFederica OlivaErnest Olivart PinoMicol OloccoGerco OnderwaterRyunosuke Hugo O'NeilJuan Sebastian Ordonez SotoDonata OsthuesJuan Martin Otalora GoicocheaPatrick OwenMaria Aranzazu OyangurenOzlem OzcelikFrancesco PaciollaAdam PadeeKlaas Ole PadekenBhagyashree PagareTommaso PajeroAntimo PalanoMatteo PalutanChucheng PanXiaofan PanStefano PanebiancoGennady PanshinLorenzo PaolucciAntonios PapanestisMarco PappagalloLuciano PappalardoCheryl PappenheimerChristopher ParkesDhruvanshu ParmarBarbara PassalacquaGiovanni PassalevaDaniele PassaroAlessandra PastoreMitesh PatelJairus Tristan PatocClaudia PatrignaniAntara PaulChristopher James PawleyAntonio PellegrinoJi PengXuanjia PengMonica Pepe AltarelliStefano PerazziniDmitrii PereimaHugo Pereira da CostaMaria Pereira MartinezAsier Pereiro CastroCilicia Uzziel PerezPascal PerretAnn-Kathrin PerrevoortAlberto PerroMichael Jacob PetersKonstantinos PetridisAlessandro PetroliniJacob PfallerHang PhamLorenzo PicaMauro PicciniLorenzo PiccoloBoleslaw PietrzykGuillaume PietrzykRiccardo Nunzio PilatoDavide PinciFlavio PisaniMarco PizzichemiVlad-Mihai PlacintaMaximo Plo CasasusThomas PoeschlFrancesco PolciMarco Poli LenerAnton PoluektovNatalia PolukhinaIvan PolyakovErica PolycarpoSebastien PonceDmitry PopovStanislav PoslavskiiKodassery PrasanthClaire ProuveDaniele ProvenzanoValery PugatchGiovanni PunziJackson Reeves PybusShah Rukh QasimQucheng QianWenbin QianNing QinSanqiang QuRenato QuaglianiRaul Iraq Rabadan TrejoRuta RaczJonas RademackerMatteo RamaManuel Ramírez GarcíaVictoria Ramos de OliveiraMiguel Ramos PernasMurilo RangelFedor RatnikovGerhard RavenMiguel Rebollo de MiguelFederico RediJake ReichFlorian ReissZan RenP.K ResmiMiquel Ribalda GalvezRoberto RibattiGabriel RicartDomenico RiccardiStefania RicciardiKate Abigail RichardsonMary Richardson-SlipperKurt RinnertPatrick RobbeGary RobertsonEduardo RodriguesAlejandro Rodriguez AlvarezEmilio Xose Rodriguez FernandezJairo Alexis Rodriguez LopezEfren Rodriguez RodriguezJonas Malte 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SellamAlexander SemennikovThomas Christian SengerMara Senghi SoaresAntonino SergiNicola SerraLorenzo SestiniAlex SeutheBorja Sevilla SanjuanYiduo ShangDesmond Mzamo ShangaseMikhail ShapkinRashi SharmaIvan ShchemerovLesya ShchutskaTara ShearsLev ShekhtmanZhihong ShenShuqi ShengVladimir ShevchenkoBoan ShiQi ShiWenjie ShiYuya ShimizuEvgenii ShmaninRoman ShorkinJoseph David ShupperdRafael Silva CoutinhoGabriele SimiSaverio SimoneMrityunjoy SinghaNicola SkidmoreTomasz SkwarnickiMark SlaterEluned SmithKrista Lizbeth SmithMark SmithLais Soares LavraMichael SokoloffPaul SolerAnatoly SolominAleksandr SolovevNiclas SommerfeldRongrong SongYunxuan SongYuxiang SongYintong SongFelipe Luan Souza de AlmeidaBruno Souza de PaulaKarol Mateusz SowaElisabetta Spadaro NorellaEugenia SpedicatoJannis Guido SpeerPatrick SpradlinViros SriskaranFederico StagniMarian StahlSascha StahlSeophine StanislausMaria Zofia StefaniakEloise Noelle SteinOlaf SteinkampHolger StevensDaria StrekalinaYangjie SuFidan SuljikJiayin 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WislickiMariusz WitekLukas WitolaTom WolfElla WoodGuy WormserStephen WottonHangyi WuJie WuXiangyu WuYanxi WuZhenhong WuKenneth WyllieShu XianZhiyu XiangYuehong XieTianyu XingAo XuLi XuLiangjun XuMenglin XuZehua XuZhihao XuZijun XuKang YangXueting YangYouhua YangZhenwei YangVsevolod YeroshenkoHo Yin Dereck YeungHang YinXiaoyue YinChenxu YuJiesheng YuXuhao YuanYuan YuanEttore ZaffaroniJilberto Antonio Zamora SaaMikhail ZavertyaevMilosz ZdybalFrancesco ZenesiniCheng ZengMing ZengChenjia ZhangDongliang ZhangJianyu ZhangLiming ZhangRanyu ZhangShulei ZhangShunan ZhangYanxi ZhangYuge ZhangZhicai ZhangYa ZhaoAlexey ZhelezovShuang ZhengXutao ZhengYangheng ZhengTianwen ZhouXiaokang ZhouYixiong ZhouValeriia ZhovkovskaLinxuan ZhuXianglei ZhuXiaoyu ZhuYibo ZhuValery ZhukovJiahui ZhuoQuan ZouDavide ZulianiGianluca Zunica
• Organismes : Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique de Clermont Laboratoire de Physique de Clermont Laboratoire de Physique Nucléaire et de Hautes Énergies Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Centre de Physique des Particules de Marseille Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire Leprince-Ringuet Laboratoire Leprince-Ringuet Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Centre de Physique des Particules de Marseille Laboratoire de Physique Nucléaire et de Hautes Énergies Laboratoire de Physique Nucléaire et de Hautes Énergies Laboratoire d'Annecy de Physique des Particules Laboratoire Leprince-Ringuet Laboratoire de Physique Nucléaire et de Hautes Énergies Laboratoire de Physique Nucléaire et de Hautes Énergies Laboratoire d'Annecy de Physique des Particules Institut de Recherches sur les lois Fondamentales de l'Univers Centre de Physique des Particules de Marseille Laboratoire de Physique de Clermont Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique Nucléaire et de Hautes Énergies Laboratoire de Physique de Clermont Laboratoire d'Annecy de Physique des Particules Laboratoire de Physique Nucléaire et de Hautes Énergies Laboratoire de Physique de Clermont Centre de Physique des Particules de Marseille Laboratoire Leprince-Ringuet Centre de Physique des Particules de Marseille Laboratoire de Physique Nucléaire et de Hautes Énergies Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique Nucléaire et de Hautes Énergies Laboratoire Leprince-Ringuet Laboratoire de Physique de Clermont Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique de Clermont Laboratoire d'Annecy de Physique des Particules Laboratoire de Physique Nucléaire et de Hautes Énergies Laboratoire de Physique de Clermont Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Centre de Physique des Particules de Marseille Centre de Physique des Particules de Marseille Laboratoire de Physique de Clermont Centre de Physique des Particules de Marseille Centre de Physique des Particules de Marseille Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire Leprince-Ringuet Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Centre de Physique des Particules de Marseille Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire d'Annecy de Physique des Particules Laboratoire de Physique Nucléaire et de Hautes Énergies Laboratoire Leprince-Ringuet Laboratoire Leprince-Ringuet Laboratoire de Physique Nucléaire et de Hautes Énergies Laboratoire de Physique de Clermont Laboratoire de Physique de Clermont Centre de Physique des Particules de Marseille Laboratoire Leprince-Ringuet Laboratoire de Physique de Clermont Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique de Clermont Centre de Physique des Particules de Marseille Laboratoire d'Annecy de Physique des Particules Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique Nucléaire et de Hautes Énergies Centre de Physique des Particules de Marseille Laboratoire Leprince-Ringuet Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire Leprince-Ringuet Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire de Physique de Clermont Laboratoire d'Annecy de Physique des Particules Laboratoire de Physique Nucléaire et de Hautes Énergies Centre de Physique des Particules de Marseille Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Institut de Recherches sur les lois Fondamentales de l'Univers Laboratoire de Physique des 2 Infinis Irène Joliot-Curie Laboratoire Leprince-Ringuet Laboratoire de Physique des 2 Infinis Irène Joliot-Curie

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Résumé : A study of the difference in the $CP$ asymmetries between $Λ^0_b \rightarrow J / ψp π^-$ and $Λ^0_b \rightarrow J / ψp K^-$ decays, $Δ{\cal A}_{CP}$, is performed using proton-proton collision data collected by the LHCb experiment in the years 2015--2018, corresponding to an integrated luminosity of $6 {\rm fb}^{-1}$. This quantity is measured to be $ Δ{\cal A}_{CP}=(4.03\pm 1.18\pm 0.23)\%$, where the first uncertainty is statistical and the second is systematic. When combined with the previous LHCb result, a value of $Δ{\cal A}_{CP} = (4.31 \pm 1.06 \pm 0.28)\%$ is obtained, corresponding to a significance of $3.9σ$ against the $CP$ symmetry hypothesis. Studies of triple-product asymmetries, which provide an additional probe of $CP$ violation, show no significant deviation from $CP$ symmetry.

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