SU(3) BREAKING EFFECTS IN HYPERON SEMILEPTONIC DECAYS AND THE EMC/SLAC PROTON SPIN MEASUREMENTS

被引：31

作者：

RATCLIFFE, PG

机构：

[1] INFN, Sezione di Milano, I-20133 Milan

来源：

PHYSICS LETTERS B | 1990年 / 242卷 / 02期

关键词：

D O I：

10.1016/0370-2693(90)91469-R

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The problem of analysing hyperon semi-leptonic decay data is discussed with particular reference to SU(3) symmetry breaking effects and the resulting predictions for the spin structure of the proton. It turns out that the present decay data can be accomodated exceedingly well by a simple approach treating solely the so-called recoil effect or centre-of-mass correction. The extractedFandDparameters, of particular relevance to present discussions of the structure functions for polarized deep-inelastic scattering, are very stable and striking close to the results of earlier analyses. The implication is that theFandD thus extracted may reliably be used in predicting the flavour non-singlet contribution to the protong1. This last being thus still in marked conflict with the EMC/SLAC results on polarized deep-inelastic scattering. © 1990 Elsevier Science Publishers B.V. (North-Holland).

引用

页码：271 / 274

页数：4

共 24 条

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