文章基本信息

标题：epsilon'/epsilon in the standard model
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作者：I. Scimemi ; E. Pallante ; A. Pich 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2001
卷号：2001
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We overview the detailed analysis of "0=" within the Standard Model, presented in ref. [1]. When all sources of large logarithms are considered, both at short and long distances, it is possible to perform a reliable Standard Model estimate of "0=". The strong S{wave rescattering of the nal pions has an important impact on this observable [1, 2]. The Standard Model prediction is found to be [1] Re ("0=") = (1:70:9) 10−3, in good agreement with the most recent experimental measurements. A better estimate of the strange quark mass would reduce the uncertainty to about 30%.