Luk KB, Diehl HT, Duryea J, Guglielmo G, Heller K, Ho PM, James C, Johns K, Longo MJ, Rameika R, Teige S, Thomson GB, Zou Y. Search for direct CP violation in nonleptonic decays of charged Xi and lambda hyperons.
PHYSICAL REVIEW LETTERS 2000;
85:4860-4863. [PMID:
11102136 DOI:
10.1103/physrevlett.85.4860]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2000] [Indexed: 05/23/2023]
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(XiLambda), between hyperons and antihyperons in the charged Xi-->Lambdapi and Lambda-->ppi decay sequence, we found no evidence of direct CP violation. The parameter A(XiLambda) was measured to be 0.012+/-0.014.
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