Polarized J/Psi production at CLEO

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dc.contributor.authorSeungwon Baekko
dc.contributor.authorJungil Leeko
dc.contributor.authorKo, Pyungwonko
dc.contributor.authorHee Sung Songko
dc.date.accessioned2013-02-27T19:36:10Z-
dc.date.available2013-02-27T19:36:10Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued1998-07-
dc.identifier.citationJOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.33, no.1, pp.97 - 101-
dc.identifier.issn0374-4884-
dc.identifier.urihttp://hdl.handle.net/10203/70424-
dc.description.abstractPolarizations of the prompt J/psi's produced in the e(+)e(-) annihilation at CLEO energy (root s = 10.58 GeV) are considered in the framework of the nonrelativistic quantum chromodynamics (NRQCD) factorization formalism. We find that the J/psi polarization has a strong dependence on the production mechanism. At CLEO energy, the most dominant J/psi, production mechanism throughout most of phase space is the color-singlet mechanism, e(+)e(-) --> J/psi, + gg, for which J/psi's are highly longitudinally polarized. On the other hand, the dominant J/psi production mechanism at the upper endpoint of the J/psi energy distribution is the color-octet process, e(+)e(-) --> (c (c) over bar)((8)) + g, for which J/psi's are almost unpolarized. Thus, the measurement of the polarization of the endpoint J/psi's is another test of the color-octet mechanism and a constraint on the NRQCD matrix elements.-
dc.languageKorean-
dc.publisherKorean Physical Soc-
dc.subjectE+E ANNIHILATION-
dc.subjectQUARKONIUM-
dc.subjectDECAY-
dc.subjectFRAGMENTATION-
dc.subjectQCD-
dc.titlePolarized J/Psi production at CLEO-
dc.typeArticle-
dc.identifier.wosid000074932100017-
dc.identifier.scopusid2-s2.0-0032380665-
dc.type.rimsART-
dc.citation.volume33-
dc.citation.issue1-
dc.citation.beginningpage97-
dc.citation.endingpage101-
dc.citation.publicationnameJOURNAL OF THE KOREAN PHYSICAL SOCIETY-
dc.contributor.nonIdAuthorSeungwon Baek-
dc.contributor.nonIdAuthorJungil Lee-
dc.contributor.nonIdAuthorHee Sung Song-
dc.type.journalArticleArticle-
dc.subject.keywordPlusE+E ANNIHILATION-
dc.subject.keywordPlusQUARKONIUM-
dc.subject.keywordPlusDECAY-
dc.subject.keywordPlusFRAGMENTATION-
dc.subject.keywordPlusQCD-
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