کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9861535 | 1529003 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Recent measurements of CP asymmetries of BâÏK0 and Bâηâ²KS at B-factories suggest new CP violation in left-handed squark mixing
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
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چکیده انگلیسی
Recent results on the mixing-induced CP asymmetries of BâÏK0 and Bâηâ²KS measured at B-factories appear to indicate discrepancies from the Standard Model expectation. Explanation of this possible anomaly is given in the context of supersymmetric extension of the Standard Model. It is shown that the present data, if the average of two experiments is taken, implies additional CP violation appearing in the generation mixing of left-handed squarks rather than that of right-handed ones. This explanation is argued to disfavor many mediation mechanisms of supersymmetry breaking, including minimal supergravity, because renormalization group effects via Yukawa interaction are unlikely to generate the desired mass mixing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 609, Issues 1â2, 3 March 2005, Pages 95-101
Journal: Physics Letters B - Volume 609, Issues 1â2, 3 March 2005, Pages 95-101
نویسندگان
Motoi Endo, Satoshi Mishima, Masahiro Yamaguchi,