scholarly journals Improvement for color glass condensate factorization: Single hadron production in pA collisions at next-to-leading order

2019 ◽  
Vol 100 (7) ◽  
Author(s):  
Hao-Yu Liu ◽  
Yan-Qing Ma ◽  
Kuang-Ta Chao
Keyword(s):  
Hadron Production ◽  
Color Glass ◽  
Color Glass Condensate ◽  
Leading Order

scholarly journals Dijet impact factor in DIS at next-to-leading order in the Color Glass Condensate

2021 ◽  
Vol 2021 (11) ◽  
Author(s):  
Paul Caucal ◽  
Farid Salazar ◽  
Raju Venugopalan
Keyword(s):  
Impact Factor ◽  
Wilson Line ◽  
Effective Field ◽  
Color Glass ◽  
Inelastic Electron ◽  
Color Glass Condensate ◽  
Leading Order ◽  
Dijet Production ◽  
Discovery Potential ◽  
The Impact

Abstract We compute the next-to-leading order impact factor for inclusive dijet production in deeply inelastic electron-nucleus scattering at small xBj. Our computation, performed in the framework of the Color Glass Condensate effective field theory, includes all real and virtual contributions in the gluon shock wave background of all-twist lightlike Wilson line correlators. We demonstrate explicitly that the rapidity evolution of these correlators, to leading logarithmic accuracy, is described by the JIMWLK Hamiltonian. When combined with the next-to-leading order JIMWLK Hamiltonian, our results for the impact factor improve the accuracy of the inclusive dijet cross-section to $$ \mathcal{O} $$ O ($$ {\alpha}_s^2 $$ α s 2 ln(xf/xBj)), where xf is a rapidity factorization scale. These results are an essential ingredient in assessing the discovery potential of inclusive dijets to uncover the physics of gluon saturation at the Electron-Ion Collider.

scholarly journals Exclusive photoproduction of vector meson at next-to-leading order from color glass condensate

2020 ◽  
Vol 44 (7) ◽  
pp. 074110
Author(s):  
Yanbing Cai ◽  
Wenchang Xiang ◽  
Mengliang Wang ◽  
Daicui Zhou
Keyword(s):  
Vector Meson ◽  
Color Glass ◽  
Color Glass Condensate ◽  
Leading Order

scholarly journals The color glass condensate and hadron production in the forward region

2006 ◽  
Vol 765 (3-4) ◽  
pp. 464-482 ◽  
Author(s):  
Adrian Dumitru ◽  
Arata Hayashigaki ◽  
Jamal Jalilian-Marian
Keyword(s):  
Hadron Production ◽  
Color Glass ◽  
Color Glass Condensate ◽  
Forward Region

scholarly journals Color glass condensate at next-to-leading order meets HERA data

2020 ◽  
Vol 102 (7) ◽  
Author(s):  
G. Beuf ◽  
H. Hänninen ◽  
T. Lappi ◽  
H. Mäntysaari
Keyword(s):  
Color Glass ◽  
Color Glass Condensate ◽  
Hera Data ◽  
Leading Order

scholarly journals Factorization of e+e− → H X cross section, differential in zh, PT and thrust, in the 2-jet limit

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
M. Boglione ◽  
A. Simonelli
Keyword(s):  
Transverse Momentum ◽  
Cross Section ◽  
Belle Collaboration ◽  
Hadron Production ◽  
Leading Order ◽  
Transverse Momentum Dependent ◽  
Factorization Scheme ◽  
Phenomenological Studies ◽  
Cross Section Differential ◽  
Perturbative Part

Abstract Factorizing the cross section for single hadron production in e+e− annihilations is a highly non trivial task when the transverse momentum of the outgoing hadron with respect to the thrust axis is taken into account. We work in a scheme that allows to factorize the e+e−→ H X cross section as a convolution of a calculable hard coefficient and a Transverse Momentum Dependent (TMD) fragmentation function. The result, differential in zh, PT and thrust, will be given to all orders in perturbation theory and explicitly computed to Next to Leading Order (NLO) and Next to Leading Log (NLL) accuracy. The predictions obtained from our computation, applying the simplest and most natural ansatz to model the non-perturbative part of the TMD, are in exceptional agreement with the experimental measurements of the BELLE Collaboration. The factorization scheme we propose relates the TMD parton densities defined in 1-hadron and 2-hadron processes, restoring the possi- bility to perform global phenomenological studies of TMD physics including experimental data from semi-inclusive deep inelastic scattering, Drell-Yan processes, e+e−→ H1H2X and e+e−→ H X annihilations.

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