π介子和Σ超子的极化率与辐射跃迁
摘要
费米实验室E781实验计划利用600 GeV的Σ超子和π介子束流以及虚光子靶，测量γ-Σ和γ-π介子相互作用。该实验将测量π介子的极化率和辐射跃迁。前者可以检验手征对称性的精确预言；后者对于过程，对于理解极化率至关重要。该实验还将测量Σ超子的极化率和辐射跃迁。极化率可以检验重子手征微扰理论的预言。到Σ*(1385)的辐射跃迁提供了s夸克磁矩的测量。文中给出了γ-π和γ-Σ相互作用的先前实验和理论结果，并描述了E781实验。
关键词
引用
@article{arxiv.hep-ph/9409463,
title = {Pion and Sigma Polarizabilities and Radiative Transitions},
author = {Murray A. Moinester},
journal= {arXiv preprint arXiv:hep-ph/9409463},
year = {2009}
}
备注
13 pages text (tex), Tel Aviv U. Preprint TAUP 2204-94, uses Springer-Verlag TEX macro package lecproc.cmm (appended at end of tex file, following \byebye), which requires extracting lecproc.cmm and putting this file in your directory in addition to the tex file (mmcd.tex) before tex processing. lecproc.cmm should be used following instructions and guidelines available from Springer-Verlag. Submitted to the Proceedings of Workshop on Chiral Dynamics, Massachusetts Institute of Technology, July 1994, Eds. A. Bernstein, B. Holstein. Replaced Oct. 4 to add TAUP preprint number. Replaced Oct. 12 to correct Pb target thickness from 1.3% interaction to 0.3%