Search for Direct CP Violation in Nonleptonic Decays of Charged {Xi} and {Lambda} Hyperons

Journal Article · Mon Dec 04 00:00:00 EST 2000 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.85.4860· OSTI ID:40205917

Luk, K B; Diehl, H T; Duryea, J; Guglielmo, G; Heller, K; Ho, P M; James, C; Johns, K; Longo, M J; Rameika, R ^[1]

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1. and others

A search for direct CP violation in the nonleptonic decays of hyperons has been performed. In comparing the product of the decay parameters, {alpha}{sub {Xi}}{alpha}{sub {Lambda}} , in terms of an asymmetry parameter, A{sub {Xi}{Lambda}} , between hyperons and antihyperons in the charged {Xi}{yields}{Lambda}{pi} and {Lambda}{yields}p{pi} decay sequence, we found no evidence of direct CP violation. The parameter A{sub {Xi}{Lambda}} was measured to be 0.012{+-}0.014 .

• Sponsoring Organization: (US)
• OSTI ID: 40205917
• Journal Information: Physical Review Letters, Vol. 85, Issue 23; Other Information: Othernumber: PRLTAO000085000023004860000001; 056047PRL; PBD: 4 Dec 2000; ISSN 0031-9007
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIHYPERONS
ASYMMETRY
DECAY
HYPERONS
WEAK HADRONIC DECAY