6533b837fe1ef96bd12a30ca
RESEARCH PRODUCT
Midrapidity Antiproton-to-Proton Ratio inppCollisons ats=0.9and 7 TeV Measured by the ALICE Experiment
Rosario TurrisiP. R. PujahariD. HaseganD. MiśkowiecJ. PeschekJ. PeschekFederico AntinoriA. Casanova DíazI. KiselI. KiselS. BöttgerGerardus NoorenA. J. Rubio Montero10Ombretta PinazzaE. SiddiHiroki YokoyamaM. MorandoBruno EspagnonG. ViestiAlina Gabriela GrigorasW. SommerIgor PshenichnovI. DasA. A. VinogradovFederico CindoloL. ŠáNdorB. H. HanChristian Holm ChristensenG. TorralbaY. WangA. KonevskihA. PetersJovan MilosevicD. TlustyAlexander MamonovA. PepatoSona PochybovaAnik GuptaA. GlennBranislav SitarM. A. Subieta VásquezAndrei Ionut HerghelegiuC. PastoreB. PommereschM. EstienneHans Hjersing DalsgaardM. Mohisin KhanLijiao LiuTome AnticicI. BerceanuBorge Svane NielsenCatia PettaKjetil UllalandN. De MarcoE. Belmont-morenoAlberto BaldisseriF. NendazG. NazarovCristina TerrevoliAlessandro GrelliC. NygaardJ. SarkamoAlberica ToiaM. De GaspariD. KrumbhornC. HernándezR. Gómez JiménezD. M.m. DonB. HicksFrancesco RiggiPanagiota FokaRaphaelle Marie BailhacheRaphaelle Marie BailhacheE. NappiS. RathJ. MunozR. A. FiniD. VranicVitaly LoginovI. RashevskayaErmanno VercellinV. DemanovSilvia ArcelliV.a. PolyakovI. S. ZguraPaolo CameriniSergey VoloshinVikas SinghalC. LalYu.n. PestovH. SnowAntonino ZichichiPeter Zahariev HristovY. LiT. AltT. AltWerner RieglerM. Spyropoulou-stassinakiPanagiotis ChristakoglouT. TolyhyA. M. GagoMarcelo Gameiro MunhozG. S. PappalardoV. ChambertP. G. KuijerFederico CarminatiA. MichalonWladyslaw Henryk TrzaskaHans Rudolf SchmidtO. V. FateevAngelo RivettiSatyajit JenaK. AamodtPaolo GiubellinoValeria MucciforaV. LafageV. LentiB. GrinyovUlrich FuchsJennifer Lynn KlayPablo SaizYongwook BaekYongwook BaekKenneth Francis ReadG.v. RussoE. StanA. SilenziSanjib MuhuriP. RoyA. De FalcoA. AnzoP. A. ScottY. J. KwonK. J. MalagalageC. D. AnsonM. A. MazzoniB. GhidiniXing Long LiVladimir KaplinY. DelgadoA.g. FedunovPodist KurashviliA. KamalY. P. ViyogiXuan ZhangXuan ZhangH. León VargasV. ZycháčekMarek KowalskiTomasz TraczykN. Van Der KolkS. HuR. PlattA. RachevskiH. A. GustafssonP. CrochetAlexander Philipp KalweitC. IvanM. PachrM. MastromarcoJ. De CuvelandJ. De CuvelandFranco MeddiDmitry AleksandrovL. ManceauAtsushi TakaharaSubhasis ChattopadhyayM. A. LisaM. HeideAgneta OskarssonH. YangE. López TorresA. KolojvariFranck MansoLeonid VinogradovFrancesco NoferiniSteffen SchreinerPeter GlasselR. N. SingarajuSu AhnSu AhnE. BiolcatiA. ZepedaOlja DordicA. NyiriR. W. FearickZ. ButheleziMeidana HuangFrancesco BarileL. V. BravinaY. VinogradovAlberto MasoniNicola BianchiP. Vande VyvreC. BaumannC. BaumannCsaba SoosL. Valencia PalomoS. ZhouA. V. KazantsevJ. W. HarrisYu.v. ZanevskyBedangadas MohantyA. BlancF. RettigF. RettigN. MiftakhovJ. L. CharvetTrine Spedstad TveterK. SchossmaierH. RicaudT. P. SinhaJogender SainiJohanna StachelH. S. LeeC. SøgaardH. LeónM. RammlerGuy PaicV. FeketeAndrey ZarochentsevL. VannucciF. PosaHanna Paulina ZbroszczykJanusz OleniaczY. BerdnikovAna VargasJ. PeyréG. Conesa BalbastrePeter Martin JacobsJon Christopher WikneI. Maldonado CervantesElena BrunaLennart OstermanR. GlasowA. A. RademakersE. KangC. YangR. SmakalJoakim NystrandY. G. KimE. CrescioFiorella FiondaM. BachA. HieiY. MaoY. MaoC.w. FabjanC.w. FabjanT. IwasakiP. PillotPremomoy GhoshJunlee KimJana BielcikovaHåvard HelstrupToru SugitateA. Lozea Feijo SoaresSilvia MasciocchiE. DénesKen OyamaD. AntończykJ. S. KimM. DialinasA. I. PavlinovL. BosisioAlexander AkindinovJ. H. KangP. GrosDong Jo KimY. Le BornecSami Sakari RasanenChristoph BlumeM. MaseraA. DevauxF. PiuzG. OdyniecPietro CorteseMichele FlorisMichele FlorisJan Fiete Grosse-oetringhausGergely Gábor BarnaföldiGiacomo BrunoAndrzej RybickiG. OrtonaS. BablokMadan M. AggarwalKlaus Johannes ReygersKlaus Johannes ReygersR. Salgueiro Domingues Da SilvaA.s. VodopianovRadiy IlkaevC. LazzeroniD. HatzifotiadouPredrag BuncicLaszlo BoldizsarJ. TakahashiJean-yves GrossiordT.m. SteinbeckT.m. SteinbeckC. TagridisMarkus FaselFatima PadillaA. DobrinG. LaurentiQ. WenG. T. JonesM. CherneyS. SerciMaria VasileiouAlessandro FerrettiBjarte KilengM. GallioKenta ShigakiMichael Linus KnichelThomas Michael CormierLokesh KumarA. Marzari ChiesaB.v. ZagreevS. GorbunovS. GorbunovA. KlovningY. MaruyamaVito ManzariG. TsiledakisV. WagnerG.f. SegatoE. G. FerreiroA. M. RossiG. De CataldoAlexandre Alarcon Do Passo SuaideS. RousseauI. VassilievV. PaticchioR. SantoA. EnokizonoDavide FalchieriChiara OppedisanoA. K. Dutta MajumdarE. FragiacomoA. G. AgocsE. S. ConnerAlessandra FantoniE. QuercighPaul ConstantinR. A. SoltzT. KrawutschkeTiziano VirgiliR. RomitaPetr ZavadaEvgeny ZabrodinV. Canoa RomanA. K. BhatiF. NavachM. MeoniT. MalkiewiczR. GemmeCiprian Mihai MituPeter Graham JonesA. MussoM. KutouskiSmbat GrigoryanRainer Martin SchickerP. StolpovskyJ. R. LutzKilian Eberhard SchwarzCai XuE. CamachoD. S. KimT. AronssonBoris BatyunyaIan Gardner BeardenH. CainesEleazar CuautleT. C. AwesAdrian SevcencoAndrea AliciRainer Arno Ernst RenfordtM. SanoXu CaiK. MizoguchiDominik FehlkerR. WanR. WanSergey NikulinD. P. MahapatraG. DellacasaRoberta FerrettiBenjamin DonigusKalliopi KanakiWisla CarenaMartino GagliardiAndrzej DeloffNikolai SmirnovR. StockH. K. SoltveitE. BerdermannE. ChiavassaDai-mei ZhouI. KrausD. FeleaP. OstrowskiK. WatanabeAnand Kumar DubeyKyoichiro OzawaG. Tejeda MuñozR. P. ScharenbergG. PudduA. AbramyanKi-seok ChoiMotoi InabaVolker LindenstruthVolker LindenstruthG. SharkovH. TauregY. KucheriaevMaya Hachiya ShimomuraStefano PianoRoberto DiviaS. Aguilar SalazarG. Cara RomeoYvonne Chiara PachmayerA. MaireR. De RemigisPetr NomokonovRaphael Noel TieulentJ. PlutaEvgeny RyabinkinL. MolnarL. MolnarY. HoriP. RosinskýM. ZynovyevV. CatanescuD. TruesdaleJ. HamblenRene BrunZ. L. MatthewsChiara ZampolliSara ValleroMihaela GheataT. J. HumanicAndre AugustinusPeter ChochulaJ. P. RevolMarkku OinonenM. BogolyubskyJuyeon YiUdo KebschullChristophe Pierre SuireA. BelogianniE. KornaśValery PuninM. I. Martínez HernándezRashmi RaniwalaAnton JuskoH.r. GulkanyanA. HayrapetyanD. MayaniA. NianineAlexey KuryakinFilimon RoukoutakisS.a. ZaporozhetsAdriana TelescaCristian AndreiAlexander KurepinG. BourdaudClaude Andre PruneauZ. Conesa Del ValleNazeer AhmadK. ŠAfaříkJ. DubuissonSedat AltinpinarT. K. NayakMarcel Araujo Silva FigueredoF. ToselloL. LuquinAnju BhasinG. MazzaLinda VickovicD. FabrisA. Szanto De ToledoEnrique CalvoC. LaraOzgur CobanogluL. H. González-truebaH. SchindlerMichal SumberaC. PérezIvan KralikMiroslav PiknaMario SittaA. CollaA. NyathaR. ArceoGiacomo ContinG. A. FeofilovJ. KapitanAndry Malala RakotozafindrabeV. I. YurevichMagdalena MalekM. BasileM. BoccioliAlexey KurepinGyulnara EyyubovaRoberto BarberaN. NovitzkyA. BalditD. Di BariP. T. HilleP. T. HilleM. ZhalovA. VacchiHenner BueschingMin Jung KweonS. RadomskiP. JovanovicM. SzubaS. EsumiS. KoxG.s. ShabratovaD. SoykDavid H. EvansG. HamarD. PerrinoJ. H. KimL. LeistamZhongbao YinMarie GermainF. CarenaLeonid SerkinTaku GunjiJ. NewbyM. R. CosentinoN. PitzDosatsu SakataM. IrfanStefan KirschJ. F. Castillo HernandezR. GrajcarekBruce BeckerS. HuberV. Chibante BarrosoM. KaliskyUlrich Michael FrankenfeldA. Di MauroA. ZeninJ. D. Tapia TakakiD. S. HwangDavid Dobrigkeit ChinellatoSergio VergaraP.a. PolozovY. ZoccaratoF. FuranoT. BreitnerYasuo MiakePeter Braun-munzingerPeter Braun-munzingerPeter Braun-munzingerSanjeev Singh SambyalMikhail IppolitovS. DashVardanush PapikyanR. Alfaro MolinaMohd Danish AzmiPeter MalzacherS. KniegeAndrei GheataB. PolichtchoukLuciano MusaOleg KaravichevDirk HutterM. Rodríguez CahuantziMikolaj KrzewickiKai SchwedaR. VarmaZ. VilakaziAra GrigoryanA. OchirovR. IchouS. De PasqualeL. Montaño ZetinaB. BoyerA. Abrahantes QuintanaRajeev SinghRaghunath SahooH. DelagrangeT. DobrowolskiValerie Ramillien BarretAltaf AhmadSerhiy SenyukovI. MakhlyuevaA. PulvirentiF. YermiaN. HerrmannS. EvrardR. TanabeRaffaele GrossoBarbara GuerzoniS. JangalD. SwobodaPeter ChristiansenK. AntipinW. W. JungP. KaliňákH. ToriiAnte BilandzicD. SilvermyrK. KozlovMartin ValaGiuseppe SimonettiPaolo MartinengoS. BoseDagmar AdamováC. Klein-bösingC. Klein-bösingD. P. KikolaT. PawlakG. O.v. De BarrosA. PetridisDavide CaffarriA. Ortiz VelasquezM. HeinzLee Stuart BarnbyL. MassacrierStefano BagnascoI. Cortés MaldonadoF. BlancoF. BlancoB. Fenton-olsenB. Fenton-olsenJ. PouthasV. PospíšilRalf Peter AverbeckS. BeoleJ. UleryShuaib Ahmad KhanF. OrsiniAna Maria MarinTatsuya ChujoDayong WangAlexandr TumkinXavier Bernard LopezJaroslav BielcikMarco MontenoS. PrasadL. WalletKonrad TywoniukA. HarutyunyanMikhail MalaevD. PeriniV. KushpilS. AntinoriXing-bo YuanT. PeitzmannO. VikhlyantsevPhilippe RosnetC. W. SonAirton DeppmanAdam Ryszard KisielAdam Ryszard KisielC. BombonatiR. KolevatovJacek Tomasz OtwinowskiM. López NoriegaGiuseppe GiraudoMarian KrivdaJ. BohmL. CunqueiroAlla MaevskayaMarta VerweijE. CattaruzzaNicolas BockE. SimiliF. FormentiJ. MlynarzAndrey ReshetinV. GrigorievF. PainkeMarcello LunardonV. NikolicR. VernetY. Corrales MoralesVladislav MankoM. NicassioP. Mendez LorenzoW. J. ParkP. MereuPietro AntonioliLuisa CifarelliB. S. NilsenS. Di LibertoToralf Bernhard SkaaliM. LenhardtGrzegorz Andrzej WilkT. SamantaMatthias RichterCvetan Valeriev CheshkovT. HoraguchiT. HoraguchiBogdan VulpescuCostin GrigorasLeonardo MilanoF. PoggioM. MagerPaolo PaganoH. GottschlagM. KimA. FrolovD. EmschermannD. EmschermannTatjana SusaW. PerytG. Herrera CorralVladimir PeskovVladimir PeskovB. V.k.s. PotukuchiV. PetráčekRuben ShahoyanM. S. GantiL. ToscanoAmalia PopRalf KeidelA. UrasT.a. PocheptsovT.a. PocheptsovMarek ChojnackiLaurent Bernard AphecetcheSevil SalurA. NedosekinL. JirdenG. Martínez GarcíaHerve BorelA. Martínez DavalosAnton AndronicClaudiu Cornel SchiauaJ. SymonsB. PastirčákP. González-zamoraLawrence PinskyRosario NaniaSandra MorettoJochen KleinF. BossúF. ChumanM. BondilaAndrea DanuO. Villalobos BaillieJanka VrlakovaTomoya TsujiR. A. RicciK. PolákI. K. YooSergey KiselevAlexei KhanzadeevD. BudnikovE. TsilisP. Ladron De GuevaraGuillaume BatigneH. BøggildJ. KralF. LefèvreM. KliemantRachid GuernaneChitrasen JenaImrich SzarkaN. AbelV. BasmanovE. StenlundNicole BastidHyun-chul KimV. P. KondratievC. CavicchioliR.j.m. SnellingsFrederick KramerSergey NazarenkoC.j. SchmidtM. TavletC. Torcato De MatosA. SolovievKrzysztof RedlichS. SchuchmannY. N. GorbunovM. BombaraBruno AlessandroSudhir RaniwalaC. Di GiglioD. SemenovF. StaleyTatiana KaravichevaC. BortolinBrigitte CheynisMyunggeun SongAndreas MorschJ. BartkeAndrey VasilievVladimir IvanovHannes JungPetra RiedlerRenu BalaA. PalmeriM. BregantA. R. ReolonR. AkimotoUwe WesterhoffG. BrucknerEnrico ScomparinLatchezar BetevJ. J. GaardhøjeMarian PutisAlexey BogdanovM. VenaruzzoB. S. ChangG. SteynA. I. ZinchenkoS. ColiAn. ZaliteG. L. UsaiC. GuerraJ. LehnertA. PesciJ. De GrootP. L.m. Podesta LermaG. P. CapitaniPeter LevaiShih-chang LeeJurgen SchukraftChristian LippmannA. ArendF. LacknerSylvain ChapelandM. A. BraunS. KapustaI. SguraR. KourD. W. KimC. García TrapagaR. BellwiedT. KalliokoskiM. HartigMitali MondalHaalandRinaldo RuiJulien FaivreA. BadalàM. Fusco GirardBasanta Kumar NandiSvein LindalHideki HamagakiGunnar LøvhøidenAnselmo MargottiL. JancurováRaul Arteche DiazKristin Fanebust HetlandSvetlana KushpilJ.a. MaresMatevz TadelD. DerkachM. CampbellDjuvslandM. FragkiadakisGrazia LuparelloMads Stormo NilssonTeodor SiemiarczukParaskevi GanotiR. JanikIouri BelikovThomas DietelVladimir SamsonovJ. BánI. OtterlundA. De CaroI. León MonzónM. Van LeeuwenHyungsuk SonGaute ØVrebekkP. Di NezzaK. OkadaRoman LietavaJ. SeoBoris WagnerChiara BianchinP. G. InnocentiC. CicaloS. NavinT. V. MoukhanovaY. SchutzJ. S. RealS. K. PalG. StefaniniJ. G. ContrerasT. S. RäihäF. OsmicDmitry BlauC. RoyI. VetlitskiyDmitry Mal'kevichA. MatyjaJ. UrbanD. M. Madagodahettige-donH. H. GutbrodJ. GebeleinS. SanoJean-pierre CussonneauAndres SandovalL. BimbotH. OeschlerRoberta ArnaldiEvgeny KryshenLaurent DucrouxA. G. AsryanI. MartashviliU. AbeysekaraS. H. KimRomualdo SantoroGilda ScioliA. B. KaidalovS. LohnA. PalahaRicha GuptaL. DíazI. E. YushmanovIonut Cristian ArseneIonut Cristian ArseneM. C. S. WilliamsA. TournaireRui MaJuha ÄYstöBastian BathenAnnalisa MastroserioG. D'erasmoJ. ZhuRoberto PreghenellaIsabel DominguezArturo TauroG. De VauxK. MaY. OkadaV. AngelovV. AngelovC. PajaresJ. P. CoffinKyrre SkjerdalA. Ramírez ReyesEnrichetta Maria FioreG. TrögerSeyong KimS. KalcherS. KalcherI. IlkivE. SerradillaA. BorisovD. Y.-u. PeressounkoV. DobretsovSergey FilchaginStefan RosseggerEwa Gladysz-dziadusKyong Sei LeeJan RakE. MontesF. PrinoM. E. CotalloYu. V. KharlovS. YasnopolskiyL. K. MangotraM. OldenburgF. ScarlassaraAdela KravcakovaEugen MudnicJorn Henning PutschkeM. BotjeJ. Castillo CastellanosY. SibiriakR. KupczakV. AltiniFederico RonchettiAndre MischkeA. JacholkowskiE. Almaráz AviñaZ. FodorM. KrusS.a. SadovskyG. M. UrciuoliChristian Claude KuhnH. AppelshäuserKetil RøedP. CerelloSergey NikolaevM. MasettiEugenio ScapparoneH. González SantosAndrew IvanovA. CharpyHans MullerG. AnelliF. SoramelEvgeny KarpechevSébastien GadratG. Aglieri RinellaAlexander KlugeF.f. GuberZubayer AhammedGiacomo Vito MargagliottiC. GarabatosJohan AlmeLuciano RamelloR. López-ramírezH. PereiraP. SaturniniP. ZelnicekBikash SinhaMelinda SicilianoN. GrionPascal DupieuxAndrea DaineseSergey FokinMichele CaselleP. PetrovL. BenhabibR. PanseA. WilkNavneet KumarCynthia Marie HadjidakisA. Fernández TéllezMartin PoghosyanNatalia KondratyevaMateusz Andrzej PloskonSiegfried Valentin FoertschNeetika SharmaKirill VoloshinD. HaschN. WillisFilippo CostaOliver BuschSubrata PalI. HřivnáčováMarian IvanovMarco De PetrisA. TurveyGualtiero VolpePrithwish TribedyB. K. SrivastavaAjay Kumar DashG. StefanekVladimir NikulinMaria HaiducBoris HippolyteCarlos A. SalgadoA. PuninChristophe FurgetJean Willy Andre CleymansD. StoccoJ. Mercado PérezP. La RoccaD. De GruttolaD. T. LarsenH. TydesjöI. RusanovMihai PetroviciHenning KværnøD. EliaBernd Stefan WindelbandVarlen GrabskiNéstor ArmestoN. Le BrisB. Von HallerF. MinafraJ. WiechulaM. R. Dutta MajumdarKathrin KochL. RiccatiS. LuS. Román LópezGennady ZinovjevDieter RøhrichDieter RøhrichK. ShtejerSven GotovacR. De RooijSanjib SharmaArturo Alejandro Menchaca-rochaPeter StrmenLuciana BianchiVladimir VecherninArtur Krzysztof SzostakR. KamermansEva SickingEva SickingKristjan Herlache GulbrandsenJohannes Peter WesselsAlexandru BercuciA. PiccottiJ. Thädersubject
PhysicsParticle physicsLarge Hadron ColliderProton010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyHadronGeneral Physics and Astronomy01 natural sciences7. Clean energyParticle identificationBaryonNuclear physicsAntiproton0103 physical sciencesHigh Energy Physics::ExperimentRapidityNuclear Experiment010306 general physicsBar (unit)description
The ratio of the yields of antiprotons to protons in pp collisions has been measured by the ALICE experiment at root s = 0.9 and 7 TeV during the initial running periods of the Large Hadron Collider. The measurement covers the transverse momentum interval 0.45 < p(t) < 1.05 GeV/c and rapidity vertical bar y vertical bar < 0.5. The ratio is measured to be R-vertical bar y vertical bar<0.5 = 0.957 +/- 0.006(stat) +/- 0.0014(syst) at 0.9 Tev and R-vertical bar y vertical bar<0.5 = 0.991 +/- 0.005 +/- 0.014(syst) at 7 TeV and it is independent of both rapidity and transverse momentum. The results are consistent with the conventional model of baryon-number transport and set stringent limits on any additional contributions to baryon-number transfer over very large rapidity intervals in pp collisions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-08-12 | Physical Review Letters |