Measurement of Azimuthal Asymmetries in Inclusive Charged Dipion Production in e⁺e⁻ Annihilations at √s̅ = 3.65 GeV

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dc.contributor.ORCID0000-0003-0867-2189 (Lou, X)en_US
dc.contributor.authorAblikim, M.en_US
dc.contributor.authorAchasov, M. N.en_US
dc.contributor.authorAi, X. C.en_US
dc.contributor.authorAlbayrak, O.en_US
dc.contributor.authorAlbrecht, M.en_US
dc.contributor.authorAmbrose, D. J.en_US
dc.contributor.authorAmoroso, A.en_US
dc.contributor.authorLou, Xinchouen_US
dc.contributor.authorBESIII Collaborationen_US
dc.contributor.utdAuthorLou, Xinchouen_US
dc.date.accessioned2016-07-20T21:13:27Z
dc.date.available2016-07-20T21:13:27Z
dc.date.created2016-01-27en_US
dc.date.issued2016-01-27en_US
dc.description.abstractWe present a measurement of the azimuthal asymmetries of two charged pions in the inclusive process e⁺e⁻ → ππΧ based on a data set of 62 pb⁻¹ at the center-of-mass energy of 3.65 GeV collected with the SESIII detector. These asymmetries can be attributed to the Collins fragmentation function. We observe a nonzero asymmetry, which increases with increasing pion momentum. As our energy scale is close to that of the existing semi-inclusive deep inelastic scattering experimental data, the measured asymmetries are important inputs for the global analysis of extracting the quark transversity distribution inside the nucleon and are valuable to explore the energy evolution of the spin-dependent fragmentation function.en_US
dc.description.sponsorshipThis work is supported in part by National Key Basic Research Program of China under Contract No. 2015CB856700; National Natural Science Foundation of China (NSFC) under Contracts No. 11125525, No. 11235011, No. 11275266, No. 11322544, No. 11335008, and No. 11425524; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. 11179007, No. U1232201, and No. U1332201; CAS under Contracts No. KJCX2-YW-N29 and No. KJCX2-YW-N45; German Research Foundation DFG under Contract No. Collaborative Research Center CRC-1044; Ministry of Development of Turkey under Contract No. DPT2006K-120470; Russian Foundation for Basic Research under Contract No. 14-07-91152; U.S. Department of Energy under Contracts No. DE-FG02-04ER41291, No. DE-FG02-05ER41374, No. DE-FG02-94ER40823, and No. DESC0010118; WCU Program of National Research Foundation of Korea under Contract No. R32-2008-000-10155-0.en_US
dc.identifier.bibliographicCitationAblikim, M., M. N. Achasov, X. C. Ai, O. Albayrak, et al. 2016. "Measurement of Azimuthal Asymmetries in Inclusive Charged Dipion Production in e⁺e⁻ annihilations at √s̅ = 3.65 GeV." Physical Review Letters 116(4), doi:10.1103/PhysRevLett.116.042001en_US
dc.identifier.issn0031-9007en_US
dc.identifier.issue4en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/4935
dc.identifier.volume116en_US
dc.language.isoenen_US
dc.publisherAmer Physical Socen_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevLett.116.042001
dc.rights©2016 American Physical Societyen_US
dc.sourcePhysical Review Letters
dc.subjectPartonsen_US
dc.subjectNuclear fragmentationen_US
dc.subjectPionsen_US
dc.subjectUncertaintyen_US
dc.subjectHadronsen_US
dc.subjectQuarksen_US
dc.subjectKaonsen_US
dc.subjectNuclear spinen_US
dc.titleMeasurement of Azimuthal Asymmetries in Inclusive Charged Dipion Production in e⁺e⁻ Annihilations at √s̅ = 3.65 GeVen_US
dc.type.genreArticleen_US

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