RECENT PROGRESS IN QCD FACTORIZATION FOR B → M1M2
نویسندگان
چکیده
منابع مشابه
B?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 کاملRecent Progress in QCD
In this talk, I will summarize some recent developments in QCD, concentrating on, but not limited to, topics discussed at the this meeting. Details, of course, can be found in the talks themselves, presented in lively sessions organized by Lance Dixon and Joey Huston for perturbative QCD, and by Paul Mackenzie and Claude Bernard for nonperturbative QCD. The future of the eld is in the already-a...
متن کاملRecent Progress in Lattice Qcd
I give a brief overview of the status of lattice QCD, concentrating on topics relevant to phenomenology. I discuss the calculation of the light quark spectrum, the lattice prediction of αMS(MZ), and the calculation of fB. Plenary talk given at the Meeting of the Division of Particles and Fields of the American Physical Society, Fermilab, November 10-14, 1992 PREPARED FOR THE U.S. DEPARTMENT OF ...
متن کاملqcd factorization in hadronic b j/ ( ,k) decays*
using qcd factorization for the hadronic matrix elements, we show that existing data, inparticular the branching ratios br ( b →j/ψk) and br ( b →j/ψπ), can be accounted for in this approach.we analyze the decay b j /k( ) within the framework of qcd factorization. the calculation of therelevant hard-scattering kernels for twist-2 and twist-3 is completed. we calculate this decay in a special...
متن کاملCharmless B → V V Decays in QCD Factorization: Implications of Recent B → φK ∗ Measurement
In the heavy quark limit, both vector mesons in the charmless B → V V decay should have zero helicity and the corresponding amplitude is proportional to the form factor difference (A1 − A2). The first observed charmless B → V V mode, B → φK∗, indicates that the form factors A1(q) and A2(q 2) cannot be very similar at low q2 as shown in some form-factor models. The approach of QCD-improved facto...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2008
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x0804192x