Volume 9, Number 4 (Iranian Journal of physics Research, Winter 2010)                   IJPR 2010, 9(4): 357-357 | Back to browse issues page

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Mehrban H. The role of electroweak penguin and magnetic dipole QCD penguin on hadronic b Quark Decays. IJPR. 2010; 9 (4) :357-357
URL: http://ijpr.iut.ac.ir/article-1-454-en.html

Semnan University , hmehraban@semnan.ac.ir
Abstract:   (12181 Views)
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 b→qkg→qkqiqj was studied through the Wilson coefficients of the effective Hamiltonian. 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 b quark decays b→qiqkqj, qi{u,c}, qk{d,s}, qj{u,c} have been calculated. It was shown that, the electroweak penguin and magnetic dipole contributions in b quark decays are small and current-current operators are dominated.
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Type of Study: Research | Subject: general

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