Measurement of Collins Asymmetries in Inclusive Production of Charged Pion Pairs in e⁺e⁻ Annihilation at BaBar

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dc.contributor.ORCID0000-0003-0867-2189 (Lou, X)en_US
dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.authorLees, J. P.en_US
dc.contributor.authorPoireau, V.en_US
dc.contributor.authorTisserand, V.en_US
dc.contributor.authorGrauges, E.en_US
dc.contributor.authorPalano, A.en_US
dc.contributor.authorEigen, G.en_US
dc.contributor.authorStugu, B.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorLou, Xinchouen_US
dc.contributor.authorBaBar Collaborationen_US
dc.contributor.utdAuthorLou, Xinchouen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.date.accessioned2015-01-22T21:28:06Z
dc.date.available2015-01-22T21:28:06Z
dc.date.created2014-09-09en_US
dc.date.issued2014-09-09en_US
dc.description.abstractWe 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.en_US
dc.identifier.bibliographicCitationLees, J. P., V. Poireau, V. Tisserand, E. Grauges, et al. 2014. "Measurement of Collins asymmetries in inclusive production of charged pion pairs in e⁺e⁻ annihilation at BABAR." Physical Review D 90(5), doi:10.1103/PhysRevD.90.052003en_US
dc.identifier.issn1550-7998en_US
dc.identifier.issue5en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/4282
dc.identifier.volume90en_US
dc.language.isoen_USen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.urihttp://dx.doi.org/ 10.1103/PhysRevD.90.052003
dc.rights©2014 American Physical Societyen_US
dc.sourcePhysical Review D
dc.subjectElectron-electron interactionsen_US
dc.subjectCollins, John C.en_US
dc.subjectPionsen_US
dc.subjectAsymmetryen_US
dc.subjectAzimuthal anglesen_US
dc.titleMeasurement of Collins Asymmetries in Inclusive Production of Charged Pion Pairs in e⁺e⁻ Annihilation at BaBaren_US
dc.typeTexten_US
dc.type.genreArticleen_US

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