EXTRACTION OF THE AXIAL-VECTOR FORM-FACTOR USING CURRENT-ALGEBRA, PION PCAC AND COVARIANT THRESHOLD ELECTROPRODUCTION AMPLITUDES

被引：6

作者：

GAULT, FD

SCADRON, MD

机构：

[1] Physics Department, University of Durham, Durham City, England

来源：

NUCLEAR PHYSICS B | 1979年 / 157卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0550-3213(79)90118-4

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Applying the on-shell, covariant electroproduction low-energy theorems of current algebra, the axial vector form factor gA(t) is mapped out from threshold π+ electroproduction data. A dipole fit to the form factor yields an axial vector mass of mA{reversed tilde equals}1.4GeV. © 1979.

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收藏

页码：517 / 528

页数：12

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