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.
Copyright Owner
American Physical Society
Copyright Date
2017
Language
en
File Format
application/pdf
Recommended Citation
Adare, Andrew; Apadula, Nicole; Campbell, Sarah C.; Ding, Lei; Hill, John C.; Hotvedt, Nels J.; Kempel, Todd; Lajoie, John G.; Lebedev, Alexandre; Ogilvie, Craig; Patel, Milap R.; Perry, Joshua; Rinn, Timothy T.; Rosati, Marzia; Runchey, Jonathan C.; Sen, Abhisek; Shimomura, M.; Timilsina, Arbin; Whitaker, Shawn; et al.; and PHENIX Collaboration, "Angular decay coefficients of J/psi mesons at forward rapidity from p plus p collisions at root s=510 GeV" (2017). Physics and Astronomy Publications. 272.
https://lib.dr.iastate.edu/physastro_pubs/272
Comments
This is an article from Physical Review D 95 (2017): 092003-1, doi:10.1103/PhysRevD.95.092003. Posted with permission.