6533b82afe1ef96bd128caa2
RESEARCH PRODUCT
Measurement of Collins asymmetries in inclusive production of charged pion pairs ine+e−annihilation atBABAR
C. BüngerA. AdametzF. De MoriV. PrasadRoberto CalabreseA. JawaheryL. PiemonteseG. CibinettoHeiko LackerColin JessopR. PrepostE. FeltresiP. TarasJ. OcarizL. Li GioiEmmanuel OlaiyaTim AdyeR. D. KassE. GabathulerF. C. PorterChunhui ChenS. LuitzK. R. SchubertM. GasperoElisa GuidoD. GambaA. M. GabareenR. H. SchindlerR. SaccoA. M. LutzE. P. SolodovV. B. GolubevA. PalanoR. CheaibW. R. InnesDavid HutchcroftH. AhmedP. PatteriJ. L. RitchieS. BettariniS. PassaggioR. Baldini-ferroliGiulia CasarosaGeorge LaffertyJ. ChauveauA. StocchiS. I. SerednyakovM. J. LeeN. GuttmanG. WormserD. DujmicW. J. WisniewskiDouglas WrightAndrei SalnikovAbner SofferD. KirkbyG. VasseurB. StuguD. B. MacfarlaneElisa ManoniK. T. FloodC. VoßG. SciollaR. Y. SoYu. I. SkovpenB. HamiltonM. EbertClaudio CampagnariE. TorrenceR. AyadS. PlayferG. MarchioriT. SchroederR. AndreassenA. J.s. SmithD. R. PeimerDmytro KovalskyiR. GorodeiskyS. PrellJames H CochranV. PoireauCh YècheM. SimardD. A. RobertsJoseph IzenJ. P. LeesB. BhuyanSw. BanerjeeG. GrosdidierW. DunwoodieR. M. WhiteAkram KhanJ. M. LoseccoN. B. SinevM. RotondoAntonio RossiB. G. FulsomD. J. BardV. ZieglerA. LusianiR. FreyD. AstonC. CartaroF. FortiJ. BougherM. BellisSau Lan WuA. HafnerB. SpaanS. MartellottiM. CarpinelliR. GodangJose F BenitezE. M. T. PuccioDavid LangeV. P. DruzhininT. PulliamS. PacettiR. CowanR. ContriJ. W. GaryG. De NardoP. C. BloomG. SimiW. GradlMaria Roberta MongeF. AnulliL. LanceriJ. A. MckennaM. T. GrahamP. RoudeauV. SantoroP. LewisG. J. KingCorrado AngeliniStephen SekulaB. EchenardT. M. HongL. M. CremaldiMaurizio BiasiniE. PaoloniSimon AkarS. ZambitoD. S. ChaoMartino MargoniEnrico RobuttiP. OngmongkolkulD. BernardM. DavierD. Lopes PegnaR. FacciniF. FerrarottoA. J. LankfordF. Le DiberderStefan SpanierM. MorandinG. OnoratoA. M. RulandD. BettoniC. BozziPablo Villanueva-perezA. RoodmanR. SchwierzJ. DorfanU. UwerA. FilippiA. OyangurenB. C. WrayV. E. BlinovW. F. WangB. MalaescuT. E. LathamG. LynchD. G. HitlinK. HonscheidR. StroiliB. T. MeadowsG. RavenE. FioravantiIan Michael NugentV. LuthR. F. SchwittersRoland WaldiF. FerroniA. P. WagnerA. CalcaterraM. D. SokoloffP. R. BurchatG. A. CowanI. GarziaR. J. BarlowX. C. LouJ. J. WalshM. PosoccoD. M. StromD. SuC. PatrignaniG. RizzoV. TisserandOwen Rosser LongA. SeidenM. RamaMartin KocianG. P. Dubois-felsmannJ. A. ErnstE. GraugesNicola NeriM. PiccoloAndrea Rodriguez PerezD. MonorchioJames R. WilsonWilliam T. FordH. BriandPaul Fraser HarrisonD. N. BrownW. T. MeyerMario GiorgiBruce SchummH. NealT. HartmannP. M. PatelM. R. ConverySridhara DasuA. P. OnuchinL. SunG. BatignaniStephen Robert WagnerAlberto CervelliD. W G S LeithE. PrencipeS. SittA. R. BuzykaevB. OberhofMarco BombenM. MandelkernM. Lo VetereM. J. LewczukS. H. RobertsonC. L. DavisE. Ben-haimAdrian John BevanD. LindemannC. TouramanisChristopher WestE. A. KravchenkoB. G. PushpawelaR. CenciAndrei GritsanG. EigenA. M. EisnerA. ZalloG. FinocchiaroPaul DaunceyA. G. DenigB. N. RatcliffA. N. YushkovJ. E. BrauG. Hamel De MonchenaultY. B. PanM. S. AlamR. KowalewskiM. FritschCrisostomo SciaccaM. V. PurohitHerbert KochJ. AlbertO. GrünbergC. HeartyM. WittgenEleonora LuppiW. ParkF. F. WilsonJ. Va'vraK. Yu. TodyshevH. L. LynchDenis DerkachP. C. KimJ. R. FryD. J. SummersJeffrey RichmanC. H. ChengK. GriessingerYu. G. KolomenskyR. De SangroW. H. TokiT. S. MattisonR. J. SobieL. VitaleF. Martinez-vidalG. PireddaH. W. WulsinZ. C. HuardM. MoriiA. SnyderDominik MüllerS. NelsonT. J. GershonJ. P. ColemanR. C. FieldAlessandro GazF. SimonettoG. R. BonneaudG. CalderiniN. TasneemD. H. WrightAidan Randle-condeM. Franco SevillaP. BiassoniFlorian Urs BernlochnerF. PalomboT. LueckJames D. OlsenC. HastL. T. KerthI. M. PeruzziF. BianchiM. PerlPh LerusteN. ArnaudB. LindquistBiplab DeyP. SonnekM. VerderiU. MallikMaurizio MartinelliM. K. SullivanJ. M. RoneyT. S. MiyashitaJ. G. SmithF. Di LodovicoD. J. PayneU. NauenbergE. BehnG. M. VitugT. LeddigH. R. BandW. S. LockmanH. H. F. ChoiS. Emerysubject
PhysicsNuclear and High Energy PhysicsParticle physicsAnnihilation010308 nuclear & particles physicsElectron–positron annihilationmedia_common.quotation_subjectHadronBaBar experiment01 natural sciencesAsymmetryB-factoryMomentumNuclear physicsPion0103 physical sciencesHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsmedia_commondescription
We present measurements of Collins asymmetries in the inclusive process e^+e^−→ππX, where π stands for charged pions, at a center-of-mass energy of 10.6 GeV. We use a data sample of 468 fb^(−1) collected by the BABAR experiment at the PEP-II B factory at SLAC, and consider pairs of charged pions produced in opposite hemispheres of hadronic events. We observe clear asymmetries in the distributions of the azimuthal angles in two distinct reference frames. We study the dependence of the asymmetry on several kinematic variables, finding that it increases with increasing pion momentum and momentum transverse to the analysis axis, and with increasing angle between the thrust and beam axis.
year | journal | country | edition | language |
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2014-09-09 | Physical Review D |