关于多粒子振幅的不连续

IF 1.3 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

JETP Letters Pub Date : 2025-10-02 DOI:10.1134/S0021364025608048

V. S. Fadin

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引用次数: 0

摘要

目前，多粒子振幅的一个被普遍接受和广泛应用的特性是重叠通道的能量不变量上不存在同时的振幅不连续。斯坦曼关系被用来证实这个性质。本文说明了这种不连续的存在，以及用斯坦曼关系来证明其不存在的违法性。不连续的存在意味着目前所接受的多雷格振幅形式是错误的，在下面的近似中推导BFKL （Balitsky-Fadin-Kuraev-Lipatov）方程时应考虑到这一点。

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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On the Discontinuities of Multiparticle Amplitudes

Currently, a generally accepted and widely used property of multiparticle amplitudes is the absence of simultaneous amplitude discontinuities on energy invariants of overlapping channels. The Steinmann relations are used to substantiate this property. The paper shows the presence of such discontinuities and the illegality of using the Steinmann relations to prove their absence. The existence of discontinuities means that the currently accepted form of multi-Regge amplitudes is erroneous and it should be taken into account when deriving the BFKL (Balitsky–Fadin–Kuraev–Lipatov) equation in the following approximations.

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来源期刊

JETP Letters 物理-物理：综合

CiteScore

2.40

自引率

30.80%

发文量

164

审稿时长

3-6 weeks

期刊介绍： All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.