Journal
PHYSICAL REVIEW D
Volume 88, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.88.054008
Keywords
-
Funding
- U.S. Department of Energy [DE-AC02-05CH11231]
- U.S. National Science Foundation [PHY-0855561]
- Direct For Mathematical & Physical Scien
- Division Of Physics [0855561] Funding Source: National Science Foundation
Ask authors/readers for more resources
We extend the nonrelativistic QCD (NRQCD) prediction for the production of heavy quarkonium with low transverse momentum in hadronic collisions by taking into account effects from all-order soft gluon resummation. Following the Collins-Soper-Sterman formalism, we resum the most singular terms in the partonic subprocesses. The theoretical predictions of J/psi and Upsilon productions are compared to the experimental data from the fixed target experiments (E866) and the collider experiments (RHIC, Tevatron, LHC). The associated nonperturbative Sudakov form factor for the gluon distributions is found to be different from the previous assumption of rescaling the quark form factor by the ratio of color factors. This conclusion should be further checked by future experiments on Higgs boson and/or diphoton production in pp collisions. We also comment on the implication of our results on determining the color-octet matrix elements associated with the J/psi and Upsilon productions in the NRQCD factorization formalism.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available