PROSPECTS FOR GPDS EXTRACTION WITH DOUBLE DVCS

被引：1

作者：

Deja, K. ^{[1
]}

Martinez-Fernandez, V. ^{[1
]}

Sznajder, P. ^{[1
]}

Wagner, J. ^{[1
]}

Pire, B. ^{[2
]}

机构：

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

[2] Ecole Polytech, CNRS, Ctr Phys Theor, IP Paris, F-91128 Palaiseau, France

来源：

ACTA PHYSICA POLONICA B PROCEEDINGS SUPPLEMENT | 2023年 / 16卷 / 07期

关键词：

COMPTON-SCATTERING;

D O I：

10.5506/APhysPolBSupp.16.7-A24

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Double deeply virtual Compton scattering (DDVCS) is the process where an electron scatters off a nucleon and produces a lepton pair. The main advantage of this process in contrast with deeply virtual and time-like Compton scatterings (DVCS and TCS) is the possibility of directly measuring GPDs for x not equal +/-xi at leading order in alpha(s) (LO). We present a new calculation of the DDVCS amplitude based on the methods developed by R. Kleiss and W.J. Stirling in the 1980s. These techniques produce expressions for amplitudes that are perfectly suited for implementation in numerical simulations. Via the PARTONS software, the correctness of this new formulation has been tested by comparing the DVCS and TCS limits of DDVCS with independent calculations of DVCS and TCS.

引用

页数：8

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