CLNS 00/1712 hep-ph/0012204 LECTURES ON THE THEORY OF NON-LEPTONIC B DECAYS

نویسنده

  • MATTHIAS NEUBERT
چکیده

These notes provide a pedagogical introduction to the theory of non-leptonic heavymeson decays recently proposed by Beneke, Buchalla, Sachrajda and myself. We provide a rigorous basis for factorization for a large class of non-leptonic two-body B-meson decays in the heavy-quark limit. The resulting factorization formula incorporates elements of the naive factorization approach and the hard-scattering approach, and allows us to compute systematically radiative (“non-factorizable”) corrections to naive factorization for decays such as B → Dπ and B → ππ.

برای دانلود 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

Spectrum and decay matrix elements of B and D-mesons in lattice NRQCD

We discuss recent results on the excitation spectra of B and D-mesons obtained in the framework of nonrelativistic lattice QCD in the quenched approximation. The results allow for the determination of the MS-mass of m b,MS (m b,MS ) = 4.34(7) GeV in O(α3s) in the perturbative matching. The determination of the decay constants fBs and fDs is discussed in detail. Results for the matrix elements o...

متن کامل

Weak Interactions of Light Flavours 1

An overview is given of weak interaction physics of the light flavours. It starts with the definition of the CKM matrix and the measurement of its components in the light-flavour sector via semi-leptonic decays. The main part of the lectures is devoted to non-leptonic decays with a main emphasis on analytical calculations of K → ππ and K ↔ K0. It finishes with an overview of Chiral Perturbation...

متن کامل

ar X iv : h ep - e x / 04 05 00 9 v 1 6 M ay 2 00 4 CLNS 04 / 1875 The CLEO - c Research Program

The CLEO-c research program will include studies of leptonic, semileptonic and hadronic charm decays, searches for exotic and gluonic matter, and test for physics beyond the Standard Model. The experiment and the CESR accelerator were modified to efficiently operate at center-of-mass energies between 3 and 5 GeV. Data at the ψ(3770) resonance were recorded with the CLEO-c detector in September ...

متن کامل

Four-Quark Mesons in Non-leptonic B Decays –Could They Resolve Some Old Puzzles?

We point out that non-leptonic B decays driven by b → cc̄s should provide a favourable environment for the production of hidden charm diquark-antidiquark bound states that have been suggested to explain the resonances with masses around 4 GeV recently observed by BaBar and BELLE. Studying their relative abundances in non-leptonic B decays can teach us novel lessons about their structure and the ...

متن کامل

Beauty and charm results from B-factories

We present the proceedings of the lectures given at the 2008 Helmholtz International Summer School Heavy Quark Physics at the Bogoliubov Laboratory of Theoretical Physics in Dubna. In two lectures we present recent results from the existing B-factories experiments, Belle and BaBar. The discussed topics include short phenomenological motivation, experimental methods and results on B meson oscill...

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

برای دانلود 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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2000