1. Linearly polarized gluons in charmonium and bottomonium production in the color octet model
- Author
-
Asmita Mukherjee and Sangem Rajesh
- Subjects
Particle physics ,Proton ,Octet ,High Energy Physics::Lattice ,Nuclear Theory ,FOS: Physical sciences ,Quark Flavors ,01 natural sciences ,Pp Collisions ,Nuclear physics ,High Energy Physics - Phenomenology (hep-ph) ,0103 physical sciences ,Hadroproduction ,Rapidity ,Upsilon ,010306 general physics ,Nuclear Experiment ,Physics ,Quantum chromodynamics ,States ,010308 nuclear & particles physics ,High Energy Physics::Phenomenology ,Quarkonium ,J-Psi ,Qcd ,Gluon ,High Energy Physics - Phenomenology ,J/Psi Production ,Root-S=7 Tev ,Production (computer science) ,High Energy Physics::Experiment ,Distributions ,Relativistic Heavy Ion Collider - Abstract
We study the possibility to probe the unpolarized and linearly polarized transverse momentum- dependent gluon distributions in unpolarized pp collision in charmonium and bottomonium produc- tion, employing non-relativistic QCD (NRQCD) based color octet model within transverse momentum dependent (TMD) factorization framework. The transverse momentum (p T ) and rapidity distributions of J/{\psi} and {\Upsilon}(1S) at LHCb, RHIC and AFTER energies are estimated. Significant modulations in transverse momentum spectrum of quarkonium in the low p T region is obtained when contributions of linearly polarized gluons inside an unpolarized proton are taken into account. The results of quarko- nium production in color octet model and color evaporation model are compared., Comment: Replaced with the revised version, to appear in PRD
- Published
- 2017