STATUS OF STANDARD MODEL CALCULATIONS OF b →s TRANSITIONS
نویسندگان
چکیده
منابع مشابه
Status of Sm Calculations of B → S Transitions
We report recent progress in SM calculations of b → s transitions. We discuss the first NNLL prediction of the B̄ → Xsγ branching ratio, including important additional subtleties due to nonperturbative corrections and logarithmically-enhanced cut effects, and also recent results on the inclusive mode B̄ → Xsll. Moreover, new results on the corresponding exclusive modes are reviewed. Finally, we c...
متن کاملPhenomenology of non - standard Z couplings in exclusive semileptonic b ! s transitions 1
The rare decays B ! K `` , B ! K ) and Bs ! + are analyzed in a generic scenario where New Physics e ects enter predominantly via Z penguin contributions. We show that this possibility is well motivated on theoretical grounds, as the sbZ vertex is particularly susceptible to non-standard dynamics. In addition, such a framework is also interesting phenomenologically since the sbZ coupling is r...
متن کاملthe effect of using model essays on the develpment of writing proficiency of iranina pre-intermediate efl learners
abstract the present study was conducted to investigate the effect of using model essays on the development of writing proficiency of iranian pre-intermediate efl learners. to fulfill the purpose of the study, 55 pre- intermediate learners of parsa language institute were chosen by means of administering proficiency test. based on the results of the pretest, two matched groups, one as the expe...
Status of the Standard Model
The standard model is healthy is all respects except for the non-zero neutrino masses which require an extension of the minimal version. This talk was in three parts: (I) Rise and Fall of the Zee Model 1998-2001. (II) Classification of Two-Zero Textures. (III) FGY Model relating Cosmological B to Neutrino CP violation. For parts (I) and (II) references are provided. Part (III) is included in 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
ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2007
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x07036476