Erratum:CPasymmetry, branching ratios, and isospin breaking effects inB→ργandB→ωγdecays with the perturbative QCD approach [Phys. Rev. D72, 094005 (2005)]
نویسندگان
چکیده
منابع مشابه
CP 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 کاملStudies of the QCD and QED effects on Isospin breaking
The isopin breaking effect due to different masses and electric charges between up/down quarks are stuided non-perturbatively using lattice QCD+QED. Up, down, and strange quark masses are determined using K±,K0, and π± meson masses as inputs. The charge splitting of Kaon mass, mK± −mK0 , is broken up into the part coming from up, down quark mass difference and that from electromagnetic effects....
متن کاملQCD Isospin Breaking in Meson Masses, Decay Constants and Quark Mass Ratios
The procedure to calculate masses and matrix-elements in the presence of mixing of the basis states is explained in detail. We then apply this procedure to the twoloop calculation in Chiral Perturbation Theory of pseudoscalar masses and decay constants including quark mass isospin breaking. These results are used to update our analysis of Kl4 done previously and obtain a value of mu/md in addit...
متن کاملIsospin Breaking and Instantons in QCD Nucleon Sum Rules
We study isospin breaking instanton corrections to the operator product expansion of the nucleon correlation functions. After a comparison with quark model calculations based on the ’t Hooft interaction, we examine the role of instantons in the corresponding QCD sum rules. Instanton contributions are found to be absent in the chirally even sum rule, but significant in the chirallyodd one. They ...
متن کاملIsospin Breaking Effects in the Anomalous Processes with Vector Mesons
We introduce isospin breaking terms as well as SU(3) breaking terms to the anomalous V V P coupling in the hidden local symmetry scheme without affecting the low energy theorem on the processes such as π → 2γ and γ → 3π. It is shown that the predictions from these terms coincide successfully with all the experimental data of anomalous decays. It is also predicted that the decay widths of ρ0 → π...
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: 2006
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.73.039902