psi ` to J/psi ratio measurements in PHENIX at RHIC

dc.creatorDONADELLI, M.
dc.creatorPHENIX Collaboration
dc.date.accessioned2012-10-20T04:13:34Z
dc.date.accessioned2018-07-04T15:41:26Z
dc.date.available2012-10-20T04:13:34Z
dc.date.available2018-07-04T15:41:26Z
dc.date.created2012-10-20T04:13:34Z
dc.date.issued2011
dc.identifierINDIAN JOURNAL OF PHYSICS, v.85, n.1, p.27-32, 2011
dc.identifier0973-1458
dc.identifierhttp://producao.usp.br/handle/BDPI/29543
dc.identifier10.1007/s12648-011-0013-y
dc.identifierhttp://dx.doi.org/10.1007/s12648-011-0013-y
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1626183
dc.description.abstractThe ratio of the psi` over the J psi production cross section in the dielectron channel has been measured in root s = 200 GeV p + p collisions with the PHENIX detector at RHIC. The analysis is based on fitting of the dielectron invariant mass spectra in the area around the J psi and psi` signals in order to extract a ratio psi` over J psi of 0.019 +/- 0.005 (stat) +/- 0.002 (sys) and a fractional feed-down contribution to J psi from psi` of 8.6 +/- 2.5%.
dc.languageeng
dc.publisherINDIAN ASSOC CULTIVATION SCIENCE
dc.relationIndian Journal of Physics
dc.rightsCopyright INDIAN ASSOC CULTIVATION SCIENCE
dc.rightsrestrictedAccess
dc.subjectHeavy ion collision
dc.subjectquarkonia
dc.subjectquark gluon plasma
dc.titlepsi ` to J/psi ratio measurements in PHENIX at RHIC
dc.typeArtículos de revistas


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