A precise sum rule among four B → Kπ CP asymmetries 1
نویسنده
چکیده
A sum rule relation is proposed for direct CP asymmetries in B → Kπ decays. Leading terms are identical in the isospin symmetry limit, while subleading terms are equal in the flavor SU(3) and heavy quark limits. The sum rule predicts ACP(B 0 → Kπ) = −0.17±0.06 using current asymmetry measurements for the other three B → Kπ decays. A violation of the sum rule would be evidence for New Physics in b → sq̄q transitions.
منابع مشابه
A precise sum rule among four B → Kπ CP asymmetries
A sum rule relation is proposed for direct CP asymmetries in B → Kπ decays. Leading terms are identical in the isospin symmetry limit, while subleading terms are equal in the flavor SU(3) and heavy quark limits. The sum rule predicts ACP(B 0 → Kπ) = −0.17±0.06 using current asymmetry measurements for the other three B → Kπ decays. A violation of the sum rule would be evidence for New Physics in...
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متن کاملar X iv : h ep - p h / 03 07 09 5 v 3 2 9 A ug 2 00 3 EFI 03 - 34 hep - ph / 0307095 RATES AND ASYMMETRIES IN B →
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متن کاملar X iv : h ep - p h / 03 07 09 5 v 1 7 J ul 2 00 3 EFI 03 - 34 hep - ph / 0307095 RATES AND ASYMMETRIES IN B →
We discuss a potential discrepancy in an approximate relation among B → Kπ rates which, with increased statistical significance, would imply new physics in ∆I = 1 transitions. An approximate relation between CP-violating rate differences in B/B 0 → Kπ and B → Kπ is used to combine these rate differences to reduce upper limits on the two CP asymmetries. These rates and asymmetries are used to up...
متن کاملar X iv : h ep - p h / 03 07 09 5 v 2 2 8 Ju l 2 00 3 EFI 03 - 34 hep - ph / 0307095 RATES AND ASYMMETRIES IN B →
We discuss a potential discrepancy in an approximate relation among B → Kπ rates which, with increased statistical significance, would imply new physics in ∆I = 1 transitions. An approximate relation between CP-violating rate differences in B/B 0 → Kπ and B → Kπ is used to combine these rate differences to reduce upper limits on the two CP asymmetries. These rates and asymmetries are used to up...
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تاریخ انتشار 2005