量子场论中的一般自旋和

IF 1.4 4区物理与天体物理 Q3 PHYSICS, NUCLEAR

International Journal of Modern Physics a Pub Date : 2024-02-06 DOI:10.1142/s0217751x23501890

Rodolfo José Bueno Rogerio, Luca Fabbri

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引用次数: 0

摘要

在量子场论（QFT）中，散射振幅是通过传播者计算出来的，对于内线而言，传播者建立在自旋/偏振和关系之上。反过来，这些传播者通常是根据自由场方程的平面波解构建的。现在可能出现的一个问题是，这种自旋/偏振和是否可以通用化。过去，曾有人首次尝试用米歇尔-怀特曼（Michel-Wightman）等式来概括费米子场的自旋和。在本文中，我们的目标是在 QFT 的范围内为费米子场找到最一般的自旋和。

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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General spin sums in Quantum Field Theory

In Quantum Field Theory (QFT), scattering amplitudes are computed from propagators which, for internal lines, are built upon spin/polarization-sum relationships. In turn, these are normally constructed upon plane-wave solutions of the free field equations. A question that may now arise is whether such spin/polarization-sums can be generalized. In the past, there has been a first attempt at generalizing spin sums for fermionic fields in terms of the Michel–Wightman identities. In this paper, we aim to find the most general spin sums for fermionic fields within the range of QFT.

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来源期刊

International Journal of Modern Physics a 物理-物理：核物理

CiteScore

3.00

自引率

12.50%

发文量

283

审稿时长

3 months

期刊介绍： Started in 1986, IJMPA has gained international repute as a high-quality scientific journal. It consists of important review articles and original papers covering the latest research developments in Particles and Fields, and selected topics intersecting with Gravitation and Cosmology. The journal also features articles of long-standing value and importance which can be vital to research into new unexplored areas.