TERT-CHANNEL COUPLINGS IN KAON-NUCLEON SCATTERING

被引：2

作者：

BRADFORD, RAW

MARTIN, BR

机构：

[1] Department of Physics and Astronomy, University College London, London, WC1E 6BT, Gower Street

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1979年 / 1卷 / 04期

关键词：

D O I：

10.1007/BF01546975

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：

Hyperbolic dispersion relations are used to examine elastic KN and tintin1 N amplitudes in the resonance region, and to extrapolate them to the annihilation channel. By evaluating the relations on a set of paths interior to the elastic channel physical regions, a spin separation of t-channel contributions is effected, and resonance couplings deduced. The results show clear evidence for effects attributable to exchanges with J≦3, several of which have not previously been isolated. The special problems associated with the isoscalar S-wave states are discussed, and an estimate made of the ɛ- S* mixing angle. © 1979, Springer-Verlag. All rights reserved.

引用

页码：357 / 368

页数：12