Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

5-8-2017

Journal or Book Title

Physical Review D

Volume

95

First Page

092003-1

Last Page

092003-13

DOI

10.1103/PhysRevD.95.092003

Abstract

We report the first measurement of the full angular distribution for inclusive J/psi -> mu(+)mu(-) decays in p + p collisions at root s = 510 GeV. The measurements are made for J/psi transverse momentum 2 < p(T) < 10 GeV /c and rapidity 1.2 < y < 2.2 in the Helicity, Collins-Soper, and Gottfried-Jackson reference frames. In all frames the polar coefficient lambda theta is strongly negative at low p(T) and becomes close to zero at high p(T), while the azimuthal coefficient lambda phi is close to zero at low p(T), and becomes slightly negative at higher p(T). The frame-independent coefficient lambda is strongly negative at all p(T) in all frames. The data are compared to the theoretical predictions provided by nonrelativistic quantum chromodynamics models.

Comments

This is an article from Physical Review D 95 (2017): 092003-1, doi:10.1103/PhysRevD.95.092003. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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