Exclusive Hadron Production in Electron-Positron Annihilation and the Structure Function Method

IF 0.6 4区物理与天体物理 Q4 PHYSICS, PARTICLES & FIELDS

Physics of Particles and Nuclei Pub Date : 2025-05-20 DOI:10.1134/S1063779624701703

V. S. Fadin

引用次数: 0

Abstract

The structure function method is currently widely used to calculate radiative corrections to exclusive electron-positron annihilation cross sections. In this case, the accuracy of calculating the corrections decreases, since the collinear approximation that forms the basis of the method does not allow one to correctly take into account the restrictions on the kinematics of emitted photons imposed by the experimental selection of events. A modification of the method is proposed that correctly takes these limitations into account.

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电子-正电子湮灭中独占强子的产生及结构函数法

结构函数法目前被广泛用于计算电子-正电子湮灭截面的辐射修正。在这种情况下，计算修正的准确性降低，因为构成该方法基础的共线近似不允许人们正确考虑由事件的实验选择所施加的对发射光子运动学的限制。提出了一种修正方法，正确地考虑了这些限制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physics of Particles and Nuclei 物理-物理：粒子与场物理

CiteScore

1.00

自引率

0.00%

发文量

116

审稿时长

6-12 weeks

期刊介绍： The journal Fizika Elementarnykh Chastits i Atomnogo Yadr of the Joint Institute for Nuclear Research (JINR, Dubna) was founded by Academician N.N. Bogolyubov in August 1969. The Editors-in-chief of the journal were Academician N.N. Bogolyubov (1970–1992) and Academician A.M. Baldin (1992–2001). Its English translation, Physics of Particles and Nuclei, appears simultaneously with the original Russian-language edition. Published by leading physicists from the JINR member states, as well as by scientists from other countries, review articles in this journal examine problems of elementary particle physics, nuclear physics, condensed matter physics, experimental data processing, accelerators and related instrumentation ecology and radiology.