학술논문

Measurement of prompt J/psi and beauty hadron production cross sections at mid-rapidity in pp collisions at root s=7 TeV
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Author
Abelev, BettyAdam, JaroslavAdamova, DagmarAdare, Andrew MarshallAggarwal, MadanRinella, Gianluca AglieriAgocs, Andras CaborAgostinelli, AndreaSalazar, Saul AguilarAhammed, ZubayerAhmad, ArshadAhmad, NazeerAhn, Sul-AhAhn, Sang UnAkindinov, AlexanderAleksandrov, DmitryAlessandro, BrunoAlfaro Molina, Jose RubenAlici, AndreaAlkin, AntonAlmaraz Avina, Erick JonathanAlme, JohanAlt, TorstenAltini, ValerioAltinpinar, SedatAltsybeev, IgorAndrei, CristianAndronic, AntonAnguelov, VenelinAnielski, JonasAnson, Christopher DanielAnticic, TomeAntinori, FedericoAntonioli, PietroAphecetche, Laurent BernardAppelshauser, HaraldArbor, NicolasArcelli, SilviaArend, AndreasArmesto, NestorArnaldi, RobertaAronsson, Tomas RobertArsene, Ionut CristianArslandok, MesutAsryan, AndzheyAugustinus, AndreAverbeck, Ralf PeterAwes, TerryAysto, Juha HeikkiAzmi, Mohd DanishBach, Matthias JakobBadala, AngelaBaek, Yong WookBailhache, Raphaelle MarieBala, RenuFerroli, Rinaldo BaldiniBaldisseri, AlbertoBaldit, AlainPedrosa, Fernando Baltasar Dos SantosBan, JaroslavBaral, Rama ChandraBarbera, RobertoBarile, FrancescoBarnafoldi, Gergely GaborBarnby, Lee StuartBarret, ValerieBartke, Jerzy GustawBasile, MaurizioBastid, NicoleBasu, SumitBathen, BastianBatigne, GuillaumeBatyunya, BorisBaumann, Christoph HeinrichBearden, Ian GardnerBeck, HansBehera, Nirbhay KumarBelikov, IouriBellini, FrancescaBellwied, ReneBelmont-Moreno, ErnestoBencedi, GyulaBeole, StefaniaBerceanu, IonelaBercuci, AlexandruBerdnikov, YaroslavBerenyi, DanielBergognon, Anais Annick EricaBerzano, DarioBetev, LatchezarBhasin, AnjuBhati, Ashok KumarBhom, JihyunBianchi, LivioBianchi, NicolaBianchin, ChiaraBielcik, JaroslavBielcikova, JanaBilandzic, AnteBjelogrlic, SandroBlanco, F.Blanco, FrancescoBlau, DmitryBlume, ChristophBoccioli, MarcoBock, NicolasBoettger, StefanBogdanov, AlexeyBoggild, HansBogolyubsky, MikhailBoldizsar, LaszloBombara, MarekBook, JulianBorel, HerveBorissov, AlexanderBose, Suvendu NathBossu, FrancescoBotje, MichielBoyer, Bruno AlexandreBraidot, ErmesBraun-Munzinger, PeterBregant, MarcoBreitner, Timo GuntherBrowning, Tyler AllenBroz, MichalBrun, ReneBruna, ElenaBruno, Giuseppe EugenioBudnikov, DmitryBuesching, HennerBufalino, StefaniaBugaiev, KyryloBusch, OliverButhelezi, Edith ZinhleOrduna, Diego CaballeroCaffarri, DavideCai, XuCaines, Helen LouiseCalvo Villar, ErnestoCamerini, PaoloCanoa Roman, VeronicaRomeo, Giovanni CaraCarena, FrancescoCarena, WislaCarlin Filho, NelsonCarminati, FedericoMontoya, Camilo Andres CarrilloDiaz, Amaya Ofelia CasanovaCastellanos, Javier Ernesto CastilloHernandez, Juan Francisco CastilloCasula, Ester Anna RitaCatanescu, VasileCavicchioli, CostanzaCeballos Sanchez, CesarCepila, JanCerello, PiergiorgioChang, BeomsuChapeland, SylvainCharvet, Jean-Luc FernandChattopadhyay, SubhasisChattopadhyay, SukalyanChawla, IshaCherney, Michael GerardCheshkov, CvetanCheynis, BrigitteBarroso, Vasco Miguel ChibanteChinellato, DavidChochula, PeterChojnacki, MarekChoudhury, SubikashChristakoglou, PanagiotisChristensen, Christian HolmChristiansen, PeterChujo, TatsuyaChung, Suh-UrkCicalo, CorradoCifarelli, LuisaCindolo, FedericoCleymans, Jean Willy AndreCoccetti, FabrizioColamaria, FabioColella, DomenicoBalbastre, Gustavo Conesadel Valle, Zaida ConesaConstantin, PaulContin, GiacomoGuillermo Contreras, JesusCormier, Thomas MichaelMorales, Yasser CorralesCortese, PietroMaldonado, Ismael CortesCosentino, Mauro RogerioCosta, FilippoCotallo, Manuel EnriqueCrescio, ElisabettaCrochet, PhilippeCruz Alaniz, EmiliaCuautle, EleazarCunqueiro, LeticiaDainese, AndreaDalsgaard, Hans HjersingDanu, AndreaDas, DebasishDas, IndranilDas, KushalDash, SadhanaDash, Ajay KumarDe, Sudipande Barros, GabrielDe Caro, Annalisade Cataldo, Giacintode Cuveland, JanDe Falco, AlessandroDe Gruttola, DanieleDelagrange, HuguesDeloff, AndrzejDemanov, VyacheslavDe Marco, NoraDenes, ErvinDe Pasquale, SalvatoreDeppman, AirtonD'Erasmo, Ginevrade Rooij, Raoul StefanDiaz Corchero, Miguel AngelDi Bari, DomenicoDi Giglio, CarmeloDietel, ThomasDi Liberto, SergioDi Mauro, AntonioDi Nezza, PasqualeDivia, RobertoDjuvsland, OeysteinDobrin, AlexandruDobrowolski, Tadeusz AntoniDominguez, IsabelDonigus, BenjaminDordic, OljaDriga, OlgaDubey, Anand KumarDucroux, LaurentDupieux, PascalMajumdar, Mihir Ranjan DuttaMajumdar, A. K. DuttaElia, DomenicoEmschermann, David PhilipEngel, HeikoErdal, Hege AustrheimEspagnon, BrunoEstienne, Magali DanielleEsumi, ShinichiEvans, DavidEyyubova, GyulnaraFabris, DanielaFaivre, JulienFalchieri, DavideFantoni, AlessandraFasel, MarkusFearick, Roger WorsleyFedunov, AnatolyFehlker, DominikFeldkamp, LinusFelea, DanielFenton-Olsen, BoFeofilov, GrigoryTellez, Arturo FernandezFerretti, AlessandroFerretti, RobertaFigiel, JanFigueredo, MarcelFilchagin, SergeyFinogeev, DmitryFionda, FiorellaFiore, Enrichetta MariaFloris, MicheleFoertsch, Siegfried ValentinFoka, PanagiotaFokin, SergeyFragiacomo, EnricoFrankenfeld, Ulrich MichaelFuchs, UlrichFurget, ChristopheGirard, Mario FuscoGaardhoje, Jens JoergenGagliardi, MartinoGago, AlbertoGallio, MauroGangadharan, Dhevan RajaGanoti, ParaskeviGarabatos, JoseGarcia-Solis, EdmundoGarishvili, IrakliGerhard, JochenGermain, MarieGeuna, ClaudioGheata, Andrei GeorgeGheata, MihaelaGhidini, BrunoGhosh, PremomoyGianotti, PaolaGirard, Martin RobertGiubellino, PaoloGladysz-Dziadus, EwaGlassel, PeterGomez, RamonGonschior, AlexeyGonzalez Ferreiro, ElenaHelena Gonzalez-Trueba, LauraGonzalez-Zamora, PedroGorbunov, SergeyGoswami, AnkitaGotovac, SvenGrabski, VarlenGraczykowski, Lukasz KamilGrajcarek, RobertGrelli, AlessandroGrigoras, CostinGrigoras, Alina GabrielaGrigoriev, VladislavGrigoryan, AraGrigoryan, SmbatGrinyov, BorisGrion, NevioGros, PhilippeGrosse-Oetringhaus, Jan FieteGrossiord, Jean-YvesGrosso, RaffaeleGuberbr, FedorGuernane, RachidGuerra Gutierrez, CesarGuerzoni, BarbaraGuilbaud, Maxime Rene JosephGulbrandsen, Kristjan HerlacheGunji, TakuGupta, AnikGupta, RamniGutbrod, HansHaaland, Oystein SennesetHadjidakis, Cynthia MarieHaiduc, MariaHamagaki, HidekiHamar, GergoeHan, ByoungheeHanratty, Luke DavidHansen, AlexanderHarmanova, ZuzanaHarris, John WilliamHartig, MatthiasHasegan, DumitruHatzifotiadou, DespoinaHayrapetyan, ArsenHeckel, Stefan ThomasHeide, Markus AnsgarHelstrup, HaavardHerghelegiu, Andrei IonutHerrera Corral, Gerardo AntonioHerrmann, NorbertHess, Benjamin AndreasHetland, Kristin FanebustHicks, BernardHille, Per ThomasHippolyte, BorisHoraguchi, TakumaHori, YasutoHristov, Peter ZaharievHrivnacova, IvanaHuang, MeidanaHumanic, ThomasHwang, Dae SungIchou, RaphaelleIlkaev, RadiyIlkiv, IrynaInaba, MotoiIncani, ElisaInnocenti, Gian MicheleInnocenti, Pier GiorgioIppolitov, MikhailIrfan, MuhammadIvan, Cristian GeorgeIvanov, VladimirIvanov, MarianIvanov, AndreyIvanytskyi, OleksiiJacholkowski, Adam WlodzimierzJacobs, PeterJang, Haeng JinJangal, Swensy GwladysJanik, Malgorzata AnnaJanik, RudolfJayarathna, SandunJena, SatyajitJha, Deeptanshu ManuJimenez Bustamante, Raul TonatiuhJirden, LennartJones, Peter GrahamJung, Hyung TaikJusko, AntonKaidalov, AlexeiKakoyan, VanikKalcher, SebastianKalinak, PeterKalliokoski, Tuomo Esa AukustiKalweit, Alexander PhilippKanaki, KalliopiKang, Ju HwanKaplin, VladimirUysal, Ayben KarasuKaravichev, OlegKaravicheva, TatianaKarpechev, EvgenyKazantsev, AndreyKebschull, Udo WolfgangKeidel, RalfKhan, PalashKhan, Mohisin MohammedKhan, Shuaib AhmadKhanzadeev, AlexeiKharlov, YuryKileng, BjarteKim, Do WonKim, MimaeKim, MinwooKim, Seon HeeKim, Dong JoKim, Se YongKim, JonghyunKim, Jin SookKim, BeomkyuKim, TaesooKirsch, StefanKisel, IvanKiselev, SergeyKisiel, Adam RyszardKlay, Jennifer LynnKlein, JochenKlein-Bosing, ChristianKliemant, MichaelKluge, AlexanderKnichel, Michael LinusKnospe, Anders GarrittKoch, KathrinKohler, MarkusKolojvari, AnatolyKondratiev, ValeryKondratyeva, NataliaKonevskih, ArtemKorneev, AndreyKour, RavjeetKowalski, MarekKox, SergeMeethaleveedu, Greeshma KoyithattaKral, JiriKralik, IvanKramer, FrederickKraus, Ingrid ChristineKrawutschke, TobiasKrelina, MichalKretz, MatthiasKrivda, MarianKrizek, FilipKrus, MiroslavKryshen, EvgenyKrzewicki, MikolajKucheriaev, YuryKuhn, Christian ClaudeKuijer, PaulKulakov, IgorKumar, JitendraKurashvili, PodistKurepin, A. 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Source
Journal of High Energy Physics. (11)
Subject
Hadron-Hadron Scattering
Naturvetenskap
Fysik
Subatomär fysik
Natural Sciences
Physical Sciences
Subatomic Physics
Language
English
ISSN
1029-8479
Abstract
The ALICE experiment at the LHC has studied J/psi production at mid-rapidity in pp collisions at root s = 7 TeV through its electron pair decay on a data sample corresponding to an integrated luminosity L-int = 5.6 nb(-1). The fraction of J/psi from the decay of long-lived beauty hadrons was determined for J/psi candidates with transverse momentum p(t) > 1,3 GeV/c and rapidity vertical bar y vertical bar < 0.9. The cross section for prompt J/psi mesons, i.e. directly produced J/psi and prompt decays of heavier charmonium states such as the psi(2S) and chi(c) resonances, is sigma(prompt J/psi) (p(t) > 1.3 GeV/c, vertical bar y vertical bar < 0.9) = 8.3 +/- 0.8(stat.) +/- 1.1 (syst.)(-1.4)(+1.5) (syst. pol.) mu b. The cross section for the production of b-hadrons decaying to J/psi with p(t) > 1.3 GeV/c and vertical bar y vertical bar < 0.9 is a sigma(J/psi <- hB) (p(t) > 1.3 GeV/c, vertical bar y vertical bar < 0.9) = 1.46 +/- 0.38 (stat.)(-0.32)(+0.26) (syst.) mu b. The results are compared to QCD model predictions. The shape of the p(t) and y distributions of b-quarks predicted by perturbative QCD model calculations are used to extrapolate the measured cross section to derive the b (b) over bar pair total cross section and d sigma/dy at mid-rapidity.