6533b7d9fe1ef96bd126d72c

RESEARCH PRODUCT

Production properties of $K*(892)\pm$ vector mesons and their spin alignment as measured in the NOMAD experiment

J-p. MeyerL.j. WintonJ. RicoG. BassompierreJ. KokkonenJ. UlrichsD. GeppertP.w. CattaneoAnte LjubičićV. TereshchenkoP. HurstRotonda L. LaT. StolarczykM. KirsanovJ. LongG. SozziF. SalvatoreS. BoydB. LakićG. N. TaylorH. DegaudenziG. J. FeldmanM. GouanèreMarco FraternaliA. KovzelevM. Valdata-nappiM. Valdata-nappiD. ShihL. S. PeakR. ChallisS.a. BunyatovG. F. MoorheadT. DignanV. V. LyubushkinBarry BlumenfeldE. NaumovaE. NaumovaO.l. KlimovA. PolyarushCaroline PoulsenK. BenslamaS.r. MishraS.r. MishraD. SteeleD. SteeleA. LanzaL. LinssenGiacomo GrazianiA. Letessier-selvonJ.m. GaillardI. BirdI. BirdA. BaldisseriAchim GeiserAchim GeiserAntonio BuenoAntonio BuenoR. DasM. T. TranV. FlaminioA. N. ToropinR. CousinsFrédéric JugetChiara RodaChiara RodaJ. A. HernandoYu. NefedovL. VacavantF. J. P. SolerF. J. P. SolerA. MarchionniJ. M. LevyD. DanielsJ.-m. VieiraM. Tareb-reyesF. VannucciE. GanglerE. GanglerF.v. WeberF.v. WeberSanto A. DeSanto A. DeP. AstierT. VinogradovaM. E. SeviorAndré RubbiaAndré RubbiaF. BobisutC. LachaudDomizia OrestanoRoberto FerrariM. ContalbrigoS.n. ToveyS.n. ToveyR. PettiStefano LacapraraFergus WilsonE. IacopiniM. BannerMalcolm EllisJ.-p. MendiburuClaus GösslingM. MezzettoFr PastoreKai ZuberG. Vidal-sitjesA. Cervera-villanuevaA. Cervera-villanuevaL. CamilleriAlessandro CardiniA. SconzaVincenzo CavasinniJ.j. Gómez-cadenasJ.j. Gómez-cadenasValerio VercesiF. MartelliD. SillouN. KentD. AutieroT. WeissePrete T. DelG. CollazuolMario StipčevićT. M. HongLella Luigi DiBruce YabsleyX. MéchainLuca RebuffiArtem ChukanovDmitry V. NaumovDmitry V. NaumovB. A. PopovB. A. PopovJ. GossetC. ContaB. SchmidtB. SchmidtKevin VarvellV. Yu ValuevC. Nguyen-mauA. M. TouchardG. PoleselloG. ConfortoG. ConfortoD. GibinA. GrantP. NedelecA. PlacciE. PennacchioN. HyettCouto E. Silva E. DoNathalie BessonD. PollmannA. GodleyU. StieglerA. GuglielmiM. VeltriH. ZacconeC. JosephMarco LavederAlexey KrasnoperovAlexey KrasnoperovM. Baldo-ceolinD. HubbardP. ZucconK. SchahmanecheH. PessardJ. DumarchezDidier FerrereSergei GninenkoSergei GninenkoJ. BouchezA. LupiE. TsesmelisCaren HagnerT. Schmidt

subject

Particle physicsPhysics and Astronomy (miscellaneous)MesonAnalytical chemistryFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciencesHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physicsNuclear ExperimentEngineering (miscellaneous)Charged currentSpin-½PhysicsAnnihilationNeutral current010308 nuclear & particles physicsFísicaFull dataProduction (computer science)High Energy Physics::ExperimentParticle Physics - Experiment

description

First measurements of K*(892) mesons production properties and their spin alignment in nu_mu charged current (CC) and neutral current (NC) interactions are presented. The analysis of the full data sample of the NOMAD experiment is performed in different kinematic regions. For K*+ and K*- mesons produced in nu_mu CC interactions and decaying into K0 pi+/- we have found the following yields per event: (2.6 +/- 0.2 (stat.) +/- 0.2 (syst.))% and (1.6 +/- 0.1 (stat.) +/- 0.1 (syst.))% respectively, while for the K*+ and K*- mesons produced in nu NC interactions the corresponding yields per event are: (2.5 +/- 0.3 (stat.) +/- 0.3 (syst.))% and (1.0 +/- 0.3 (stat.) +/- 0.2 (syst.))%. The results obtained for the rho00 parameter, 0.40 +/- 0.06 (stat) +/- 0.03 (syst) and 0.28 +/- 0.07 (stat) +/- 0.03 (syst) for K*+ and K*- produced in nu_mu CC interactions, are compared to theoretical predictions tuned on LEP measurements in e+e- annihilation at the Z0 pole. For K*+ mesons produced in nu NC interactions the measured rho00 parameter is 0.66 +/- 0.10 (stat) +/- 0.05 (syst).

yearjournalcountryeditionlanguage
2006-04-27
10.1140/epjc/s2006-02500-4https://hal.in2p3.fr/in2p3-00115967