Measurements of B -> J/psi at forward rapidity in p plus p collisions at root s=510 GeV

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dc.contributor.author Aidala, C.
dc.contributor.author Kim, D. J.
dc.contributor.author Krizek, F.
dc.contributor.author Novitzky, N.
dc.contributor.author Rak, J.
dc.contributor.author PHENIX Collaboration
dc.date.accessioned 2020-01-22T12:11:02Z
dc.date.available 2020-01-22T12:11:02Z
dc.date.issued 2017-05-02
dc.identifier.citation Aidala , C , Kim , D J , Krizek , F , Novitzky , N , Rak , J & PHENIX Collaboration 2017 , ' Measurements of B - > J/psi at forward rapidity in p plus p collisions at root s=510 GeV ' , Physical Review D , vol. 95 , no. 9 , 092002 . https://doi.org/10.1103/PhysRevD.95.092002
dc.identifier.other PURE: 85211388
dc.identifier.other PURE UUID: 3bcf7fd3-200a-4b92-b192-825a922826ce
dc.identifier.other WOS: 000400668700002
dc.identifier.other Scopus: 85020126352
dc.identifier.uri http://hdl.handle.net/10138/310138
dc.description.abstract We report the first measurement of the fraction of J/psi mesons coming from B-meson decay (F (B -> J/psi)) in p + p collisions at root s = 510 GeV. The measurement is performed using the forward silicon vertex detector and central vertex detector at PHENIX, which provide precise tracking and distance-of-closest-approach determinations, enabling the statistical separation of J=. due to B-meson decays from prompt J/psi. The measured value of F (B -> J/psi) is 8.1% +/- 2.3% (stat) +/- 1.9% (syst) for J/psi with transverse momenta 0 <p(T) <5 GeV/c and rapidity 1.2 <vertical bar y vertical bar <2.2. The measured fraction F (B -> J/psi) at PHENIX is compared to values measured by other experiments at higher center of mass energies and to fixed-order-next-toleading- logarithm and color-evaporation-model predictions. The b (b) over bar cross section per unit rapidity [d sigma/dy(pp -> b (b) over bar)] extracted from the obtained F (B -> J/psi) and the PHENIX inclusive J/psi cross section measured at 200 GeV scaled with color-evaporation-model calculations, at the mean B hadron rapidity y = +/- 1.7 in 510 GeV p + p collisions, is 3.63(-1.70)(+1.92) mu b. It is consistent with the fixed-order-next-toleading- logarithm calculations. en
dc.format.extent 18
dc.language.iso eng
dc.relation.ispartof Physical Review D
dc.rights unspecified
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject P(P)OVER-BAR COLLISIONS
dc.subject TEV
dc.subject PHENIX
dc.subject COLLIDER
dc.subject DETECTOR
dc.subject PROMPT
dc.subject 114 Physical sciences
dc.title Measurements of B -> J/psi at forward rapidity in p plus p collisions at root s=510 GeV en
dc.type Article
dc.contributor.organization Helsinki Institute of Physics
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1103/PhysRevD.95.092002
dc.relation.issn 2470-0010
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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