Transverse single spin asymmetry in e plus p↑ → e plus J/ψ plus X and transverse momentum dependent evolution of the Sivers function

被引：32

作者：

Godbole, Rohini M. ^{[1
]}

Misra, Anuradha ^{[2
]}

Mukherjee, Asmita ^{[3
]}

Rawoot, Vaibhav S. ^{[4
]}

机构：

[1] Indian Inst Sci, Ctr High Energy Phys, Bangalore 560012, Karnataka, India

[2] Univ Mumbai, Dept Phys, Bombay 400098, Maharashtra, India

[3] Indian Inst Technol, Dept Phys, Bombay 400076, Maharashtra, India

[4] Univ Mumbai, Dept Phys, Bombay 400098, Maharashtra, India

来源：

PHYSICAL REVIEW D | 2013年 / 88卷 / 01期

关键词：

POLARIZED PROTON-BEAM; HARD SCATTERING; ANALYZING POWER; QUARK FLAVORS; J-PSI; PREDICTIONS; QCD;

D O I：

10.1103/PhysRevD.88.014029

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We extend our analysis of transverse single spin asymmetry in electroproduction of J/psi to include the effect of the scale evolution of the transverse momentum dependent (TMD) parton distribution functions and gluon Sivers function. We estimate single spin asymmetry for JLab, HERMES, COMPASS, and eRHIC energies using the color evaporation model of charmonium production, using an analytically obtained approximate solution of TMD evolution equations discussed in the literature. We find that there is a reduction in the asymmetry compared with our predictions for the earlier case considered by us, wherein the Q(2) dependence came only from DGLAP evolution of the unpolarized gluon densities and a different parametrization of the TMD Sivers function was used.

引用

页数：10

共 25 条

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Godbole, Rohini M.
Kaushik, Abhiram
Misra, Anuradha
Rawoot, Vaibhav
Sonawane, Bipin
PHYSICAL REVIEW D, 2017, 96 (09)
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Godbole, Rohini M.
Misra, Anuradha
Mukherjee, Asmita
Rawoot, Vaibhav S.
PHYSICAL REVIEW D, 2012, 85 (09):
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Xing, Hongxi
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Vitev, Ivan
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PHYSICAL REVIEW D, 2012, 86 (09):
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Drachenberg, J. L.
MENU 2013 - 13TH INTERNATIONAL CONFERENCE MESON-NUCLEON PHYSICS AND THE STRUCTURE OF THE NUCLEON, 2014, 73
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PHYSICAL REVIEW D, 2012, 86 (01):
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PHYSICAL REVIEW D, 2023, 108 (07)
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PHYSICAL REVIEW D, 2010, 82 (01):
[9] Nuclear Dependence of the Transverse-Single-Spin Asymmetry for Forward Neutron Production in Polarized p plus A Collisions at √SNN=200 GeV
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