scholarly journals Scale dependence of the small x transverse momentum dependent gluon distribution

2019 ◽  
Vol 99 (5) ◽  
Author(s):  
Jian Zhou
Keyword(s):  
Transverse Momentum ◽  
Gluon Distribution ◽  
Scale Dependence ◽  
Transverse Momentum Dependent ◽  
Small X

scholarly journals Significance of gluon density at soft and hard processes at LHC

2015 ◽  
Vol 39 ◽  
pp. 1560115
Author(s):  
A. A. Grinyuk ◽  
A. V. Lipatov ◽  
G. I. Lykasov
Keyword(s):  
Exact Solution ◽  
Transverse Momentum ◽  
Gluon Distribution ◽  
Gluon Density ◽  
Bfkl Equation ◽  
Transverse Momentum Dependent ◽  
Hadron Spectra ◽  
Saturation Region ◽  
Gluon Content

We study the role of the non-perturbative input to the transverse momentum dependent (TMD) gluon density in hard processes at the LHC. We derive the TMD gluon distribution from the fit of the inclusive hadron spectra measured at low transverse momenta in [Formula: see text] collisions at the LHC and demonstrate that the best description of these spectra for larger hadron transverse momenta can be achieved by matching the derived TMD gluon distribution with the exact solution of the Balitsky-Fadin-Kuraev-Lipatov (BFKL) equation obtained at small transverse momenta outside the saturation region. A special attention is put to the phenomenological applications of presented TMD parton densities to some LHC processes, which are sensitive to the quark and gluon content of a proton.

scholarly journals Transverse momentum dependent parton distributions at small-x

2017 ◽  
Vol 921 ◽  
pp. 104-126 ◽  
Author(s):  
Bo-Wen Xiao ◽  
Feng Yuan ◽  
Jian Zhou
Keyword(s):  
Transverse Momentum ◽  
Parton Distributions ◽  
Transverse Momentum Dependent ◽  
Small X

scholarly journals Evolution of Gluon TMD at Low and Moderate x

2015 ◽  
Vol 37 ◽  
pp. 1560058 ◽  
Author(s):  
I. Balitsky ◽  
A. Tarasov
Keyword(s):  
Transverse Momentum ◽  
Nonlinear Evolution ◽  
Transverse Momentum Dependent ◽  
Small X

We study how the rapidity evolution of gluon transverse momentum dependent distribution changes from nonlinear evolution at small x ≪ 1 to linear double-logarithmic evolution at moderate x ~ 1.

scholarly journals TMD gluon distributions at small x in the CGC theory

2018 ◽  
Vol 27 (05) ◽  
pp. 1830003 ◽  
Author(s):  
Elena Petreska
Keyword(s):  
Transverse Momentum ◽  
Recent Progress ◽  
Effective Theory ◽  
Color Glass ◽  
Color Glass Condensate ◽  
Transverse Momentum Dependent ◽  
Small X ◽  
Gluon Saturation ◽  
Gluon Distributions ◽  
Domain Of Validity

In this paper, we review recent progress in the description of unpolarized transverse-momentum-dependent (TMD) gluon distributions at small [Formula: see text] in the color glass condensate (CGC) effective theory. We discuss the origin of the nonuniversality of TMD gluon distributions in the TMD factorization framework and in the CGC theory and the equivalence of the two approaches in their overlapping domain of validity. We show some applications of this equivalence, including recent results on the behavior of TMD gluon distributions at small [Formula: see text], and on the study of gluon saturation. We discuss recent advances in the unification of the TMD evolution and the nonlinear small-[Formula: see text] evolution of gluon distributions.

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