Nonleptonic decays of B→(f1(1285),f1(1420))V in the perturbative QCD approach
نویسندگان
چکیده
منابع مشابه
V decays in the perturbative QCD approach
Two-body non-leptonic charmed decays B(s) → D(s)P , D (s)P , D(s)V and D (s)V are analyzed in perturbative QCD approach, where P and V denote the light pseudoscalar meson and vector meson, respectively. We test the D meson wave function by a χ fit with experimental data of six B → DP channels. We give the branching ratios of all the charmed B decay channels, most of which agree with experiments...
متن کاملQcd-improved Factorization in Nonleptonic B Decays
Nonleptonic decays ofB mesons have attracted a lot of attention recently since they were observed experimentally in CLEO, BaBar and BELLE. These decays are important in extracting the information on the Cabibbo-KobayashiMaskawa (CKM) matrix elements and CP violation. On the theoretical side, it is the least understood area. Since nonleptonic decays involve nonperturbative effects such as final-...
متن کاملNonleptonic Hyperon Decays with QCD Sum Rules
Despite measurements which date more than 20 years ago, no straightforward solution of the ratio of the parity-conserving (P-wave) to parityviolating (S-wave) decays of the hyperons has been obtained. Here we use two 2-point methods in QCD sum rules to examine the problem. We obtain quite different results for the two methods. Neither one gives results that agree with the data. We discuss possi...
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 کاملRare Radiative B Decays in Perturbative Qcd
We report on recent progress on perturbative QCD calculations of certain exclusive rare weak B meson decays involving hard photons. In the limit of a photon energy Eγ much larger than ΛQCD , the amplitudes for such processes can be analyzed in a twist expansion in powers of Λ/Eγ . The leading twist amplitude is given by the convolution of a hard scattering amplitude with the B meson light-cone ...
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: Physical Review D
سال: 2016
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.94.113005