Mixing-induced CP asymmetry in B → K∗γ decays with perturbative QCD approach
نویسنده
چکیده
The mixing-induced CP asymmetries in B → K∗γ → KSπ0γ and B → K∗γ → KLπ0γ are expected to be small within the standard model. So they are among the most promising decay modes to test the standard model. In this paper, we compute the mixing-induced CP asymmetries in these decay modes, within the framework of the standard model, using perturbative QCD, and our conclusion is SKSπ0γ = −SKLπ0γ = −(3.5± 1.7)× 10.
منابع مشابه
The mixing-induced CP asymmetry in B → K∗γ decays with perturbative QCD approach
The mixing-induced CP asymmetries in B → K∗γ → KSπ0γ and B → K∗γ → KLπ0γ are expected to be small within the standard model. So they are among the most promising decay modes to test the standard model. In this paper, we compute the mixing-induced CP asymmetries in these decay modes, within the framework of the standard model, using perturbative QCD, and our conclusion is SKSπ0γ = −SKLπ0γ = −(4....
متن کاملفاکتور کردن QCD و پاد تقارنهای CP در واپاشیهای هادرونی B→Kπ
This paper studies improved factorization method, in the heavy quark limit, for B→Kπ decays. Paying attention to strong interaction scale AQCD, and calculating all parameters depending on that in the particular scale (the same as µ ) show that we can obtain better and comparable results for branching ratios such as BR(B0 → K0 π 0 )=8.5+0.7-0.5 × 10-6 and BR(B →π k0)=2.26+0.17-0.15 × 10-5, and...
متن کاملCP Asymmetry , Branching ratios , and Isospin breaking effects of B → K ∗ γ with perturbative QCD Approach
The radiative B → K * γ mode is caused by a penguin operator which is a quantum correction. Thus this mode may be useful in the search for physics beyond the standard model. In this paper, we compute the branching ratio, direct CP asymmetry, and isospin breaking effects within the Standard Model in the framework perturbative QCD, and discuss how new physics might show up in this decay.
متن کاملB?J/?(?,K) Decays within QCD Factorization Approach
We used QCD factorization for the hadronic matrix elements to show that the existing data, in particular the branching ratios BR ( ?J/?K) and BR ( ?J/??), can be accounted for this approach. We analyzed the decay within the framework of QCD factorization. We have complete calculation of the relevant hard-scattering kernels for twist-2 and twist-3. We calculated this decays in a special scale ...
متن کاملDirect CP violation in B → ρ 0 ( ω ) PS
We calculate the direct CP violating asymmetry parameter, a CP , for B → π + π − π and B → π + π − K decays, in the case where ρ 0 − ω mixing effects are taken into account. We find that the direct CP asymmetry for B − → π + π − π − , ¯ B 0 → π + π − π 0 , B − → π + π − K − and ¯ B 0 → π + π − ¯ K 0 , reaches its maximum when the invariant mass π + π − is in the vicinity of the ω meson mass. Th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006