6533b82bfe1ef96bd128def7

RESEARCH PRODUCT

Collins asymmetries in inclusive chargedKKandKπpairs produced ine+e−annihilation

M. HessAlessandro PilloniD. R. PeimerA. M. EisnerS. MartellottiM. RotondoB. N. RatcliffJ. L. RitchieG. De NardoR. CowanS. I. SerednyakovA. AdametzF. De MoriM. RöhrkenZ. C. HuardM. V. PurohitI. M. NugentJ. AlbertS. LuitzP. TarasR. Y. SoHeiko LackerH. A. NealBiplab DeyL. M. CremaldiD. S. ChaoF. AnulliM. DavierBruce SchummF. Di LodovicoR. AndreassenI. M. PeruzziA. CalcaterraB. G. PushpawelaYu. I. SkovpenAlessandro GazF. BianchiJ. DorfanM. GasperoS. DittrichJ. P. ColemanD. J. PayneR. GodangV. PrasadRoberto CalabreseY. B. PanR. KowalewskiD. BettoniPh LerusteA. R. BuzykaevK. R. SchubertN. ArnaudA. BeaulieuR. CenciR. C. FieldS. H. RobertsonD. G. HitlinSimon AkarA. OyangurenA. ZalloA. StocchiAbner SofferG. FinocchiaroV. LuthM. J. LeeG. OnoratoJ. ChauveauMarco BombenHerbert KochCorrado AngeliniA. FilippiStephen SekulaM. S. AlamB. HamiltonM. EbertJ. R. FryAndrei GritsanDenis DerkachD. SuM. FritschC. CartaroD. Lopes PegnaB. T. MeadowsDouglas WrightA. KhanG. RavenK. GriessingerC. BozziK. HonscheidA. M. RossiR. ContriM. D. SokoloffP. R. BurchatDmytro KovalskyiEleonora LuppiJoseph IzenR. F. SchwittersA. SnyderF. F. WilsonC. H. ChengM. PiccoloJ. P. LeesC. TouramanisJ. OcarizGiulia CasarosaG. WormserR. De SangroS. L. WuJ. W. GaryM. PosoccoMaria Roberta MongeI. GarziaP. OngmongkolkulF. FortiMaurizio BiasiniJ. A. MckennaG. BatignaniK. Yu. TodyshevColin JessopA. RoodmanChristopher WestB. EchenardB. BhuyanT. SchroederR. PrepostD. BernardE. FioravantiT. PulliamW. DunwoodieE. PaoloniS. PrellO. GrünbergE. O. OlaiyaPeter S. KimC. PatrignaniV. TisserandB. OberhofM. J. LewczukJames H CochranR. CheaibF. SimonettoV. PoireauRoger BarlowMartino MargoniFlorian Urs BernlochnerB. G. FulsomP. RoudeauJ. Va’vraOwen Rosser LongW. H. TokiV. SantoroR. H. SchindlerA. SeidenR. SaccoA. LusianiX. C. LouJ. J. WalshF. PalomboT. LueckA. G. DenigS. BettariniRoland WaldiF. FerroniPaul Fraser HarrisonH. W. WulsinV. E. BlinovJ. A. ErnstE. Ben-haimD. GambaG. P. Dubois-felsmannV. P. DruzhininJames D. OlsenE. A. KravchenkoCrisostomo SciaccaD. AstonT. S. MattisonG. VasseurH. H. F. ChoiK. T. FloodS. EmeryD. N. BrownP. M. PatelG. RizzoM. RamaStephen Robert WagnerN. GuttmanSw. BanerjeeA. P. OnuchinL. SunA. J.s. SmithC. HastD. J. LangeT. M. HongG. PireddaC. HeartyL. T. KerthB. StuguW. Panduro VazquezYu. G. KolomenskyM. K. SullivanW. T. FordAdrian John BevanT. E. LathamM. CarpinelliR. GorodeiskyD. J. SummersG. LynchJ. M. RoneyG. D. LaffertyE. GraugesTim AdyeR. D. KassT. J. GershonJ. M. LoseccoG. MarchioriMario GiorgiR. J. SobieN. TasneemB. SpaanM. SimardD. A. RobertsL. VitaleG. GrosdidierSridhara DasuF. Martinez-vidalDominik MüllerW. GradlL. LanceriJ. G. SmithElisa ManoniS. PlayferR. FacciniF. FerrarottoA. J. LankfordA. HafnerH. AhmedF. Le DiberderBogdan MalaescuAidan Randle-condeE. M. T. PuccioM. Franco SevillaJ. D. RichmanM. T. GrahamD. J. BardGabriele SimiV. B. GolubevD. B. MacfarlaneC. L. DavisG. A. CowanL. PiemonteseE. GabathulerW. R. InnesF. C. PorterA. PalanoM. ChrzaszczC. VoßG. R. BonneaudG. J. KingD. W. G. S. LeithG. CalderiniP. PatteriC. BüngerA. JawaheryG. CibinettoA. M. LutzW. J. WisniewskiS. PassaggioD. E. HutchcroftT. LeddigH. R. BandW. S. LockmanM. R. ConveryC. H. ChenS. M. SpanierM. VerderiU. MallikN. NeriP. C. BloomM. MorandinU. UwerR. StroiliE. P. SolodovT. S. MiyashitaM. BellisR. AyadJames R. WilsonH. BriandG. Eigen

subject

QuarkNuclear physicsPhysicsNuclear and High Energy PhysicsParticle physicsAnnihilationElectron–positron annihilationHadronCenter (category theory)BaBar experimentHigh Energy Physics::ExperimentSign (mathematics)B-factory

description

We present measurements of Collins asymmetries in the inclusive process e^+e^− → h_1h_2X, h_1h_2 = KK, Kπ, ππ, at the center-of-mass energy of 10.6 GeV, using a data sample of 468  fb^(−1) collected by the BABAR experiment at the PEP-II B factory at SLAC National Accelerator Center. Considering hadrons in opposite thrust hemispheres of hadronic events, we observe clear azimuthal asymmetries in the ratio of unlike sign to like sign, and unlike sign to all charged h_1h_2 pairs, which increase with hadron energies. The Kπ asymmetries are similar to those measured for the ππ pairs, whereas those measured for high-energy KK pairs are, in general, larger.

https://doi.org/10.1103/physrevd.92.111101