Search for direct CP violation in nonleptonic decays of charged Xi and Lambda hyperons

Citation
Kb. Luk et al., Search for direct CP violation in nonleptonic decays of charged Xi and Lambda hyperons, PHYS REV L, 85(23), 2000, pp. 4860-4863
Citations number
33
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
85
Issue
23
Year of publication
2000
Pages
4860 - 4863
Database
ISI
SICI code
0031-9007(200012)85:23<4860:SFDCVI>2.0.ZU;2-P
Abstract
A search for direct CP violation in the nonleptonic decays of hyperons has been performed. In comparing the product of the decay parameters, alpha (Xi )alpha (Lambda), in terms of an asymmetry parameter, A(Xi Lambda), between hyperons and antihyperons in the charged Xi --> Lambda pi and Lambda --> p pi decay sequence, we found no evidence of direct CP violation. The paramet er A(Xi Lambda) was measured to be 0.012 +/- 0.014.