LEPTOPRODUCTION OF ρ MESONS AS DISCRIMINATOR FOR THE UNINTEGRATED GLUON DISTRIBUTION IN THE PROTON

被引：28
|
作者：
Bolognino, A. D. [1 ,2 ]
Celiberto, F. G. [3 ,4 ]
Ivanov, D. Yu. [5 ,6 ]
Papa, A. [1 ,2 ]
机构：
[1] Univ Calabria, Dipartimento Fis, I-87036 Cosenza, Italy
[2] Ist Nazl Fis Nucl, I-87036 Cosenza, Italy
[3] Univ Pavia, Dipartimento Fis, I-27100 Pavia, Italy
[4] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy
[5] Sobolev Inst Math, Novosibirsk 630090, Russia
[6] Novosibirsk State Univ, Novosibirsk 630090, Russia
来源：
ACTA PHYSICA POLONICA B PROCEEDINGS SUPPLEMENT | 2019年 / 12卷 / 04期
关键词：
POMERANCHUK SINGULARITY; FORMALISM;
D O I：
10.5506/APhysPolBSupp.12.891
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The gluon content of the proton, in the high-energy regime, is embodied by the unintegrated gluon distribution (UGD), which describes the gluon emission probability, with a given longitudinal momentum fraction and transverse momentum. The UGD, formulated within the k-factorization approach, has universal validity, and several models for it have been proposed so far. We will show that the polarized rho-meson leptoproduction at HERA is a non-trivial testfield for discriminating among existing models of UGD.
引用
收藏
页码：891 / 896
页数：6
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