Transverse single spin asymmetry in p plus p(up arrow) -> J/psi plus X

Godbole, Rohini M and Kaushik, Abhiram and Misra, Anuradha and Rawoot, Vaibhav and Sonawane, Bipin (2017) Transverse single spin asymmetry in p plus p(up arrow) -> J/psi plus X. In: PHYSICAL REVIEW D, 96 (9).

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Abstract

We present estimates of transverse single spin asymmetry (TSSA) in p + p(up arrow)-> J/psi + X within the color evaporation model of charmonium production in a generalized parton model (GPM) framework, using the recently obtained best fit parameters for the gluon Sivers function (GSF) extracted from PHENIX data on TSSA in p + p(up arrow)-> pi(0) + X at midrapidity. We calculate asymmetry at root s = 200 GeV, and compare the results with PHENIX data on TSSA in the process p + p(up arrow)-> J/psi + X. We also present estimates for asymmetry at root s = 115 GeV corresponding to the proposed fixed target experiment AFTER@LHC and at root s = 500 GeV corresponding to the higher RHIC energy. Finally, we investigate the effect of the transverse momentum dependent (TMD) evolution of the densities involved, on the asymmetry.

Item Type:	Journal Article
Publication:	PHYSICAL REVIEW D
Additional Information:	Copy right for this article belongs to the AMER PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited:	23 Dec 2017 06:23
Last Modified:	23 Dec 2017 06:23
URI:	http://eprints.iisc.ac.in/id/eprint/58516

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