Weak Decays of Heavy–Quark Systems
نویسنده
چکیده
The recent theoretical progress in the description of semileptonic decays in the framework of the heavy mass expansion is summarized. Both inclusive and exclusive decays are considered. Contribution to the XXIXth Rencontres de Moriond, Electroweak Interactions and Unified Theories, Méribel, France, March 12–19, 1994. CERN-TH.7264/94 May 1994
منابع مشابه
B Decays and the Heavy-Quark Expansion
We review the theory and phenomenology of heavy-quark symmetry, exclusive weak decays of B mesons, inclusive decay rates and lifetimes of b hadrons. To appear in the Second Edition of Heavy Flavours, edited by A.J. Buras and M. Lindner (World Scientific, Singapore) CERN-TH/97-24 February 1997 B DECAYS AND THE HEAVY-QUARK EXPANSION MATTHIAS NEUBERT Theory Division, CERN, CH-1211 Geneva 23, Switz...
متن کاملEffective Hamiltonian of Electroweak Penguin for Hadronic b Quark Decays
In this research we work with the effective Hamiltonian and the quark model. We investigate the decay rates of matter-antimatter of quark. We describe the effective Hamiltonian theory and apply this theory to the calculation of current-current ( ), QCD penguin ( ), magnetic dipole ( ) and electroweak penguin ( ) decay rates. The gluonic penguin structure of hadronic decays is studied thro...
متن کاملThe role of electroweak penguin and magnetic dipole QCD penguin on hadronic b Quark Decays
This research, works with the effective Hamiltonian and the quark model. Using, the decay rates of matter-antimatter of b quark was investigated. We described the effective Hamiltonian theory which was applied to the calculation of current-current (Q1,2), QCD penguin (Q3,…,6), magnetic dipole (Q8) and electroweak penguin (Q7,…,10) decay rates. The gluonic penguin structure of hadronic decays ...
متن کاملHeavy-Quark Effective Theory and Weak Matrix Elements
Recent developments in the theory of weak decays of heavy flavours are reviewed. Applications to exclusive semileptonic B decays, the semileptonic branching ratio and charm counting, beauty lifetimes, and hadronic B decays are discussed. Invited talk presented at the International Europhysics Conference on High Energy Physics Jerusalem, Israel, 19–26 August 1997 CERN-TH/98-2 January 1998 19: He...
متن کاملHeavy-Quark Effective Theory
We give an introduction to the heavy-quark effective theory and the 1/mQ expansion, which provide the modern framework for a systematic, model-independent description of the properties and decays of hadrons containing a heavy quark. We discuss the applications of these concepts to spectroscopy and to the weak decays of B mesons. Lectures presented at the 34th International School of Subnuclear ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008