SU(3) decomposition of two-body B decay amplitudes.

نویسندگان

  • Grinstein
  • Lebed
چکیده

We present the complete flavor SU(3) decomposition of decay amplitudes for decays of the triplet (B + u , B 0 d , B 0 s) of B mesons nonleptonically into two pseudoscalar mesons. This analysis holds for arbitrarily broken SU(3) and can be used to generate amplitude relations when physical arguments permit one to neglect or relate any of the reduced amplitudes.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Topological amplitudes in D decays to two pseudoscalars: a global analysis with linear SU(3)F breaking

We study decays of D, D, and D s mesons into two pseudoscalar mesons by expressing the decay amplitudes in terms of topological amplitudes. Including consistently SU(3)F breaking to linear order, we show how the topological-amplitude decomposition can be mapped onto the standard expansion using reduced amplitudes characterized by SU(3) representations. The tree and annihilation amplitudes can b...

متن کامل

Studies of Three-Body B^+→D ̅^* 〖(2007)〗^0 K^+ K ̅^0 and B^0→D^* 〖(2010)〗^- K^+ K ̅^0 Decays

We analyze three-body decays of and . Under the factorization approach, there are tree level diagrams for these decay modes and the transition matrix element of decay is factorized into a form factor multiplied by decay constant and form factor multiplied into weak vertices form factor. The transition matrix element of decay is also factorized into a form factor multiplied into weak vertic...

متن کامل

Suppression of Flavor Symmetry Breaking in B Decay Sum Rules

While flavor symmetries are useful for studying hadronic B decays, symmetry relations for amplitudes and decay rates are usually violated by first order symmetry breaking corrections. We point out two cases in which first order symmetry breaking is suppressed by a small ratio of amplitudes: (1) An isospin sum rule for four B → Kπ decays, where isospin breaking is shown to be negligible. (2) An ...

متن کامل

Charmless Two-Body and Quasi-Two-Body B-decays at BABAR

B-mesons decaying into charmless hadronic final states are rare events. The leading tree diagrams are CKM suppressed and loop (penguin) diagrams typically contribute at comparable magnitude. Decay rates and CP asymmetries may deviate from Standard Model expectations if yet-unknown heavy particles contribute in the loop. The abundance of related decays allows for multiple independent measurement...

متن کامل

ar X iv : h ep - p h / 06 01 12 9 v 1 1 7 Ja n 20 06 TECHNION - PH - 2006

While flavor symmetries are useful for studying hadronic B decays, symmetry relations for amplitudes and decay rates are usually violated by first order symmetry breaking corrections. We point out two cases in which first order symmetry breaking is suppressed by a small ratio of amplitudes: (1) An isospin sum rule for four B → Kπ decays, where isospin breaking is shown to be negligible. (2) An ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Physical review. D, Particles and fields

دوره 53 11  شماره 

صفحات  -

تاریخ انتشار 1996