期刊
PHYSICAL REVIEW LETTERS
卷 84, 期 1, 页码 18-21出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.84.18
关键词
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Recent results from CLEO on B --> K pi indicate that the phase gamma may be substantially different from that obtained from other fit to the KM matrix elements in the standard model. We show that gamma extracted using B --> K pi, pi pi is sensitive to new physics occurring at loop level. It provides a powerful method to probe new physics in electroweak penguin interactions. Using effects due to anomalous gauge couplings as an example, we show that within the allowed ranges for these couplings information about gamma obtained from B --> K pi, pi pi can be very different from the standard model prediction.
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