Measurements of $B \rightarrow J/\psi$ at forward rapidity in $p$+$p$ collisions at $\sqrt{s}=510$ GeV - INSPIRE

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Measurements of $B \rightarrow J/\psi$ at forward rapidity in $p$ + $p$ collisions at $\sqrt{s}=510$ GeV

PHENIX

Collaboration

Jan 5, 2017

18 pages

Published in:

Phys.Rev.D 95 (2017) 9, 092002

Published: May 2, 2017

e-Print:

1701.01342 [hep-ex]

DOI:

10.1103/PhysRevD.95.092002

Experiments:

BNL-RHIC-PHENIX

View in:

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Abstract: (APS)

We report the first measurement of the fraction of J/ψ mesons coming from B-meson decay (FB→J/ψ) in p+p collisions at 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/ψ due to B-meson decays from prompt J/ψ. The measured value of FB→J/ψ is 8.1%±2.3%(stat)±1.9%(syst) for J/ψ with transverse momenta 0

Note:

431 authors, 17 pages, 11 figures, 4 tables, 2012 data. v2 is version accepted for publication by Phys. Rev. D. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html

p p: scattering
p p: colliding beams
B: hadronic decay
J/psi(3100): hadroproduction
J/psi(3100): leptonic decay
muon: pair production
channel cross section: measured
hadron: rapidity
PHENIX
vertex detector

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