Article
Angular decay coefficients of J/psi mesons at forward rapidity from p plus p collisions at root s=510 GeV
Physical Review D
Document Type
Article
Disciplines
Publication Version
Published Version
Publication Date
5-8-2017
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.
Copyright Owner
American Physical Society
Copyright Date
2017
Language
en
File Format
application/pdf
Citation Information
Andrew Adare, Nicole Apadula, Sarah C. Campbell, Lei Ding, et al.. "Angular decay coefficients of J/psi mesons at forward rapidity from p plus p collisions at root s=510 GeV" Physical Review D Vol. 95 (2017) p. 092003-1 - 092003-13 Available at: http://works.bepress.com/craig-ogilvie/72/
This is an article from Physical Review D 95 (2017): 092003-1, doi:10.1103/PhysRevD.95.092003. Posted with permission.