"hadroproduction; leptonic decay; transverse momentum dependence; RHIC"@en . "149008" . . . . "Vrba, V\u00E1clav" . "Aidala, C." . "10.1103/PhysRevD.86.099904" . . . "[54BA166F27D7]" . "2"^^ . "Li\u0161ka, Tom\u00E1\u0161" . "Virius, Miroslav" . . . . . . . . "Adare, A." . "We report the first measurement of transverse single-spin asymmetries in J/psi production from transversely polarized p + p collisions at root s = 200 GeV with data taken by the PHENIX experiment in 2006 and 2008. The measurement was performed over the rapidity ranges 1.2 < vertical bar y vertical bar < 2.2 and vertical bar y vertical bar < 0.35 for transverse momenta up to 6 GeV/c. J/psi production at the Relativistic Heavy Ion Collider is dominated by processes involving initial-state gluons, and transverse single-spin asymmetries of the J/psi can provide access to gluon dynamics within the nucleon. Such asymmetries may also shed light on the long-standing question in QCD of the J/psi production mechanism. Asymmetries were obtained as a function of J/psi transverse momentum and Feynman-x, with a value of -0.086 +/- 0.026(stat) +/- 0.003(syst) in the forward region. This result suggests possible nonzero trigluon correlation functions in transversely polarized protons and, if well defined in this reaction, a nonzero gluon Sivers distribution function." . . "Measurement of transverse single-spin asymmetries for J/psi production in polarized p + p collisions at root s = 200 GeV" . "RIV/68407700:21340/12:00201587!RIV13-MSM-21340___" . . "Measurement of transverse single-spin asymmetries for J/psi production in polarized p + p collisions at root s = 200 GeV" . "http://arxiv.org/pdf/1210.6683v1" . "Ajitanand, N. N." . . "We report the first measurement of transverse single-spin asymmetries in J/psi production from transversely polarized p + p collisions at root s = 200 GeV with data taken by the PHENIX experiment in 2006 and 2008. The measurement was performed over the rapidity ranges 1.2 < vertical bar y vertical bar < 2.2 and vertical bar y vertical bar < 0.35 for transverse momenta up to 6 GeV/c. J/psi production at the Relativistic Heavy Ion Collider is dominated by processes involving initial-state gluons, and transverse single-spin asymmetries of the J/psi can provide access to gluon dynamics within the nucleon. Such asymmetries may also shed light on the long-standing question in QCD of the J/psi production mechanism. Asymmetries were obtained as a function of J/psi transverse momentum and Feynman-x, with a value of -0.086 +/- 0.026(stat) +/- 0.003(syst) in the forward region. This result suggests possible nonzero trigluon correlation functions in transversely polarized protons and, if well defined in this reaction, a nonzero gluon Sivers distribution function."@en . "447"^^ . "Kr\u00E1l, A." . "I, Z(MSM6840770039)" . "Measurement of transverse single-spin asymmetries for J/psi production in polarized p + p collisions at root s = 200 GeV"@en . "Akiba, Y." . . . . "Measurement of transverse single-spin asymmetries for J/psi production in polarized p + p collisions at root s = 200 GeV"@en . "Afanasiev, S." . "21340" . "RIV/68407700:21340/12:00201587" . .