SU(3) breaking in hyperon beta decays: a prediction for Xi(0)->Sigma(+)e(nu)over-bar

Authors
Ratcliffe, PG
Citation
Pg. Ratcliffe, SU(3) breaking in hyperon beta decays: a prediction for Xi(0)->Sigma(+)e(nu)over-bar, NUCL PH B-P, 75B, 1999, pp. 60-62
Citations number
11
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
ISSN journal
09205632 → ACNP
Volume
75B
Year of publication
1999
Pages
60 - 62
Database
ISI
SICI code
0920-5632(199904)75B:<60:SBIHBD>2.0.ZU;2-V
Abstract
SU(3) breaking in hyperon semi-leptonic decays is discussed. The SU(3) para meters F and D, relevant to the "proton-spin puzzle", are extracted and a p rediction is presented for the decay Xi(0) --> Sigma(+) e (v) over bar, cur rently under study by the KTeV collaboration. The values found are g(1)/f(1 ) = 1.16 +/- 0.03 +/- 0.01 and Gamma = (0.80 +/- 0.03 +/- 0.01).10(6) s(-1) .