BARYON MULTIPOLE MOMENTS IN THE SINGLE QUARK TRANSITION MODEL

被引：27

作者：

COTTINGHAM, WN

DUNBAR, IH

机构：

[1] H.H. Wills Physics Laboratory, University of Bristol, Bristol, BS8 1TL, Tyndall Avenue

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1979年 / 2卷 / 01期

关键词：

D O I：

10.1007/BF01546235

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：

It is shown that the predictions of the single quark transition model of the electromagnetic transitions of baryons can be expressed in a highly simplified form by the simultaneous use of multipole moments at the quark level and at the baryon level. The predictions so expressed are applied to the latest 'world average' photoproduction amplitudes and an excellent fit is obtained. The model also fits electroproduction amplitudes to within the errors. It is argued that the electromagnetic decays of baryon resonances to dileptons are of particular interest and widths for these processes are estimated. © 1979 Springer-Verlag.

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页码：41 / 48

页数：8

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