Title of article :
Effective Hamiltonian of Electroweak Penguin for Hadronic b Quark Decays
Author/Authors :
Mehrban، H. نويسنده Department of Physics, Faculty of Science, Semnan University, P.O. Box 35195-363, Semnan, Islamic Republic of Iran ,
Issue Information :
فصلنامه با شماره پیاپی سال 2009
Pages :
19
From page :
167
To page :
185
Abstract :
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 through the Wilson coefficients of the effective Hamiltonian. We calculate the branching ratios of the tree-level, effective Hamiltonian, effective Hamiltonian including electroweak Penguin, effective Hamiltonian including Magnetic Dipole and the effective Hamiltonian including electroweak Penguin and Magnetic Dipole quark decays , , , . We show that, the electroweak Penguin and Magnetic Dipole contributions in b quark decays are small and Current-Current operators are dominant.
Journal title :
Journal of Sciences
Serial Year :
2009
Journal title :
Journal of Sciences
Record number :
1983967
Link To Document :
بازگشت