6533b851fe1ef96bd12a8c52

RESEARCH PRODUCT

Spectra and ratios of identified particles in Au+Au andd+Au collisions atsNN=200GeV

N. ApadulaB. AzmounA. KrálM. OkaP. LiebingS. EsumiD. SharmaR. IchimiyaP. TarjánY. J. MaoMartin PurschkeC. A. AidalaC. A. AidalaY. FukaoI. TserruyaA. K. PurwarK. FujiwaraCharles MaguireMaya Hachiya ShimomuraA. MorrealeD. KawallC. SilvestreK. KaratsuZ. FraenkelGary GrimYu. EfremenkoR. K. ChoudhuryJongmin LeeY. L. YamaguchiK. V. DharmawardaneAnne Marie SicklesJ. H. KangY. I. MakdisiV. SinghH. ThemannJ. S. HaggertyT. HesterV. S. PantuevD. LynchE. LeitnerA. TaketaniG. S. KyleJames AlexanderMarisilvia DonadelliV. BumazhnovO. DietzschM. I. NagyM. I. NagyD. WatanabeM. D. MalikE. VznuzdaevN. A. SparksR. S. TowellI. GarishviliF. WeiK. N. BarishS. NamD. S. JumperR. TanabeE. T. AtomssaH. ValleM. K. DayanandaM. WysockiAjit Kumar MohantyT. A. ShibataC. L. SilvaC. L. SilvaM. J. TannenbaumS. SanoS. SanoT. SatoDipanwita DuttaA. GlennA. GlennG. R. YoungH. W. Van HeckeH. ToriiT. DahmsE. KistenevP. LichtenwalnerH. QuA. KimHideki HamagakiK. AokiY. S. LaiR. PakN. KamiharaN. GrauN. GrauJ. MurataEunja KimJulia VelkovskaA. Yu. SemenovS. DairakuS. RembeczkiK. A. DreesS. N. WhiteDeepa ThomasZvi Hirsh CitronR. AverbeckByung-sik HongA. BazilevskyG. DavidA. KissKyeongpil LeeS. P. SorensenM. RosatiR. VértesiR. VértesiHongfang LiuHongfang LiuD. E. FieldsB. V. JacakSenta GreeneA. T. BasyeK. NakanoJ. HamblenAaron AngeramiTadaaki IsobeJ. P. WoodAlexander MilovI. NakagawaR. LuechtenborgT. EngelmoreBeomkyu KimK. BoyleJ. IdeHenner BueschingGerd Joachim KundeWei XieM. OuchidaN. MeansSteve EdwardsM. ViriusK. OkadaRushan HanMotoi InabaM. MccumberW. A. ZajcO. DrapierFrank EllinghausB. FademE. O'brienI. SheinR. M. WrightY. TanakaW. E. SondheimD. IvanischevMate CsanadC. M. CamachoPrashant ShuklaS. F. PatePhilippe RosnetAlice MignereyK. S. SimE. R. KinneyD. P. MorrisonM. L. BrooksK. WatanabeV. BaublisA. DenisovL. D'orazioH. En'yoE. MannelS. YokkaichiA. A. VinogradovKe. NakamuraS. CampbellVladimir SamsonovV. CiancioloM. J. LeitchP. A. RukoyatkinT. IchiharaR. A. SoltzC. H. ChenC. OakleyA. DreesK. ShojiH. Al-batainehO. ChvalaJ. HanksAlexandre LebedevSergey FokinM. NihashiMarcus HohlmannB. LoveTakahiro FusayasuTatsuya ChujoJiangyong JiaJiangyong JiaY. GotoH. J. MoonL. BaksayT. HoraguchiP. L. McgaugheyP. W. StankusT. L. ThomasY. IkedaD. IsenhowerJen-chieh PengSung Keun ParkD. M. LeeI. RavinovichK. DasM. Grosse PerdekampSeong H. KimAlexander MalakhovC. Y. ChiA. ToiaN. N. AjitanandL. A. Linden LevyK. SakashitaTakao SakaguchiE. P. HartouniH. PeiJ. E. FrantzJ. E. FrantzTamas Ferenc CsorgoM. E. ConnorsY. J. KwonRyugo S. HayanoK. SedgwickM. BaiR. P. PisaniJ. G. LajoieInkyu ParkD. KleinjanJ. L. NagleXiong WangV. PapavassiliouK. KirilukZ. Conesa Del ValleH. A. GustafssonTakahiro NakamuraA. D. FrawleyY. RiabovD. SilvermyrKenta ShigakiAlexei KhanzadeevDong Jo KimC. PinkenburgS. BatheS. BatheT. MurakamiD. McglincheyD. McglincheyC. BaumannA. G. LitvinenkoM. NguyenR. YangI. J. ChoiA. KravitzE. H. KimAgneta OskarssonC. ZhangSusumu OdaA. DeshpandeJason KaminE. StenlundA. DionA. DionK. B. LeeS. KametaniL. S. ZolinTaku GunjiH. GongJ. SeeleX. JiangA. VeichtG. RocheS. HuangJ. B. ChoiS. P. StollA. S. NyaninW. J. ParkT. KempelF. KajiharaP. RužičkaY. BerdnikovY. AkibaA. DurumC. P. SinghZhiying YouK. TanidaRachid NouicerD. KotchetkovM. ProisslJohannes Peter WesselsR. BennettChristopher RosenA. V. KazantsevDong-hun KimS. TanejaM. MishraW. HolzmannM. KawashimaS. NagamiyaS. S.e. RosendahlT. JonesPeter ChristiansenB. M. JohnsonG. BunceViktor RiabovK. YamauraM. FingerA. KozlovD. WinterR. SetoA. YanovichC. L. WoodyA. BerdnikovVaclav VrbaKlaus Johannes ReygersD. Yu PeressounkoJ. H. BhomR. J. PettiK. ImaiK. ImaiS. ButsykRui WeiL. TomášekD. JouanA. IsupovT. V. MoukhanovaD. RoachP. MikešP. MikešS. ZhouI. DanchevS. SawadaDmitry BlauY. OnukiX. HeK. M. KijimaJ. SziklaiS. D. RolnickJ. YingJan RakA. FranzM. ChiuE. J. DesmondB. MeredithY. AramakiV. PeresedovR. LaceyC. A. OgilvieM. TogawaKisung LeeT. K. HemmickE. Vazquez-zambranoJ. ParkT. C. AwesR. Granier De CassagnacKyoichiro OzawaT. LiškaJ. M. DurhamJ. M. DurhamYasuo MiakeJ. S. BokA. RakotozafindrabeBrian ColeJ. KosterA. AdareA. CaringiJun KikuchiM. KurosawaY. WatanabeM. KasaiY. TsuchimotoY. IwanagaB. KomkovJohn HillXingguo LiL. KochendaM. IssahI. E. YushmanovH. MasuiToru SugitateA. EnokizonoA. EnokizonoP. ChungNorio SaitoI. YounusI. YounusTsutomu MibeM. GoninMinghui LiuA. A. BickleyM. HeffnerKenneth Francis ReadKenneth Francis ReadM. A. L. LeiteA. DattaI. V. SourikovaFrançois FleuretA. SukhanovK. KuritaH. PereiraR. BelmontR. BelmontJ. S. KapustinskyV. BabintsevY. MorinoJ. JinE. M. TakaguiM. NaglisMasayasu IshiharaF. MatathiasKensuke HommaE. RichardsonP. ConstantinK. I. HahnB. BassalleckM. KonnoY. NakamiyaG. BaksayB. SahlmuellerB. SahlmuellerY. J. KimJ. T. MitchellR. SeidlS. TarafdarVladislav MankoM. SlunečkaS. BelikovEva HaslumB. LenziC. ValeC. ValeS. AfanasievJ. NewbyD. HornbackA. TaranenkoKazushi MikiBrajesh K. SinghK. S. Joo

subject

PhysicsNuclear and High Energy PhysicsNuclear TheoryHadronSpectral lineNuclear physicsPionDeuteriumTransverse momentumHigh Energy Physics::ExperimentAtomic physicsNuclear ExperimentRelativistic Heavy Ion ColliderNucleonBar (unit)

description

The transverse momentum (p(T)) spectra and ratios of identified charged hadrons (pi(+/-), K-+/-, p, (p) over bar) produced in root s(NN) = 200 GeV Au + Au and d + Au collisions are reported in five different centrality classes for each collision species. The measurements of pions and protons are reported up to p(T) = 6 GeV/c (5 GeV/c), and the measurements of kaons are reported up to p(T) = 4 GeV/c (3.5 GeV/c) in Au + Au (d + Au) collisions. In the intermediate p(T) region, between 2 and 5 GeV/c, a significant enhancement of baryon-to-meson ratios compared to those measured in p + p collisions is observed. This enhancement is present in both Au + Au and d + Au collisions and increases as the collisions become more central. We compare a class of peripheral Au + Au collisions with a class of central d + Au collisions which have a comparable number of participating nucleons and binary nucleon-nucleon collisions. The p(T)-dependent particle ratios for these classes display a remarkable similarity, which is then discussed.

https://doi.org/10.1103/physrevc.88.024906