One-loop evolution of twist-2 generalized parton distributions

被引：1

作者：

Bertone, Valerio ^{[1
]}

del Castillo, Rafael F. ^{[3
]}

Echevarria, Miguel G. ^{[4
,5
]}

del Rio, Oscar ^{[2
,3
]}

Rodini, Simone ^{[6
,7
]}

机构：

[1] Univ Paris Saclay, IRFU, CEA, F-91191 Gif Sur Yvette, France

[2] Univ Complutense Madrid, Dept Fis Teor, E-28040 Madrid, Spain

[3] Univ Complutense Madrid, IPARCOS, E-28040 Madrid, Spain

[4] Univ Basque Country UPV EHU, Dept Phys, Bilbao 48080, Spain

[5] Univ Basque Country UPV EHU, EHU Quantum Ctr, Leioa 48940, Spain

[6] Deutsch Elektronen Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany

[7] Ecole Polytech, Inst Polytech Paris, CPHT, CNRS, F-91120 Palaiseau, France

来源：

PHYSICAL REVIEW D | 2024年 / 109卷 / 03期

关键词：

ANGULAR-MOMENTUM; DENSITIES; KERNELS;

D O I：

10.1103/PhysRevD.109.034023

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We revisit the evolution of generalized parton distributions at the leading order in the strong coupling constant alpha s for all of the twist-2 quark and gluon operators. We rederive the relevant one-loop evolution kernels, expressing them in a form suitable for implementation, and check analytically that some basic properties, such as Dokshitzer-Gribov-Lipatov-Altarelli-Parisi/Efremov-Radyushkin-Brodsky-Lepage limits and polynomiality conservation, are fulfilled. We also present a number of numerical results obtained with a public implementation of the evolution in the library APFEL++ and available within the PARTONS framework.

引用

页数：21

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