Diffractive dijet production in deep inelastic scattering and photon-hadron collisions in the color glass condensate

被引：67
作者：
Altinoluk, Tolga [1 ]
Armesto, Nestor [1 ]
Beuf, Guillaume [2 ,3 ,5 ]
Rezaeian, Amir H. [4 ,6 ,7 ]
机构：
[1] Univ Santiago Compostela, Dept Fis Particulas, Santiago De Compostela 15706, Galicia, Spain
[2] Univ Santiago Compostela, IGFAE, Santiago De Compostela 15706, Galicia, Spain
[3] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel
[4] European Ctr Theoret Studies Nucl Phys & Related, Str Tabarelle 286, I-38123 Villazzano, TN, Italy
[5] Fdn Bruno Kessler, Str Tabarelle 286, I-38123 Villazzano, TN, Italy
[6] Univ Tecn Federico Santa Maria, Dept Fis, Avda Espana 1680,Casilla 110-V, Valparaiso, Chile
[7] Univ Tecn Federico Santa Maria, Ctr Cient Tecnol Valparaiso CCTVal, Casilla 110-V, Valparaiso, Chile
来源：
PHYSICS LETTERS B | 2016年 / 758卷
基金：
以色列科学基金会; 欧洲研究理事会;
关键词：
NONLINEAR GLUON EVOLUTION; HARD DIFFRACTION; P PLUS; PHOTOPRODUCTION; EQUATION; PROTON; DIS; LEPTOPRODUCTION; FACTORIZATION; UNITARITY;
D O I：
10.1016/j.physletb.2016.05.032
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study exclusive dijet production in coherent diffractive processes in deep inelastic scattering and real (and virtual) photon-hadron (gamma((*))-h) collisions in the Color Glass Condensate formalism at leading order. We show that the diffractive dijet cross section is sensitive to the color-dipole orientation in the transverse plane, and is a good probe of possible correlations between the q _ q-dipole transverse separation vector rand the dipole impact parameter b. We also investigate the diffractive dijet azimuthal angle correlations and t-distributions in gamma((*))-h collisions and show that they are sensitive to gluon saturation effects in the small-xregion. In particular, we show that the t-distributionof diffractive dijet photo-production off a proton target exhibits a dip-type structure in the saturation region. This effect is similar to diffractive vector meson production. Besides, at variance with the inclusive case, the effect of saturation leads to stronger azimuthal correlations between the jets. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
引用
收藏
页码：373 / 383
页数：11
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