Transition distribution amplitudes and hard exclusive reactions with baryon number transfer

被引：22

作者：

Pire, B. ^{[1
]}

Semenov-Tian-Shansky, K. ^{[2
,3
]}

Szymanowski, L. ^{[4
]}

机构：

[1] IP Paris, Ecole Polytech, CNRS, CPHT, F-91128 Palaiseau, France

[2] Natl Res Ctr Kurchatov Inst, Petersburg Nucl Phys Inst, Gatchina 188300, Russia

[3] Natl Res Univ, Higher Sch Econ, St Petersburg 194100, Russia

[4] NCBJ, Natl Ctr Nucl Res, PL-02093 Warsaw, Poland

来源：

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS | 2021年 / 940卷

关键词：

QCD; Collinear factorization; Hard exclusive reactions; Structure of hadrons; Transition distribution amplitudes; Generalized parton distributions; Distribution amplitudes; GENERALIZED PARTON DISTRIBUTIONS; PION FORM-FACTOR; VIRTUAL COMPTON-SCATTERING; LIGHT-RAY OPERATORS; PERTURBATIVE QCD; EVOLUTION-EQUATIONS; ASYMPTOTIC-BEHAVIOR; QUANTUM CHROMODYNAMICS; MASS DIVERGENCES; MESON PRODUCTION;

D O I：

10.1016/j.physrep.2021.09.002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Baryon-to-meson and baryon-to-photon transition distribution amplitudes (TDAs) arise in the collinear factorized description of a class of hard exclusive reactions characterized by the exchange of a non-zero baryon number in the cross channel. These TDAs extend the concepts of generalized parton distributions (GPDs) and baryon distribution amplitudes (DAs). In this review we discuss the general properties and physical interpretation of baryon-to-meson and baryon-to-photon TDAs. We argue that these non-perturbative objects are a convenient complementary tool to explore the structure of baryons at the partonic level. We present an overview of hard exclusive reactions admitting a description in terms of TDAs. We discuss the first signals from hard exclusive backward meson electroproduction at JLab with the 6 GeV electron beam and explore further experimental opportunities to access TDAs at JLab@12 GeV, PANDA, J-PARC and EIC. (C) 2021 Elsevier B.V. All rights reserved.

引用

页码：1 / 121

页数：121

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