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Journal of Sciences Islamic Republic of Iran، جلد ۲۰، شماره ۲، صفحات ۰-۰
عنوان فارسی Effective Hamiltonian of Electroweak Penguin for Hadronic b Quark Decays
چکیده فارسی مقاله 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.
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Effective Hamiltonian of Electroweak Penguin for Hadronic b Quark Decays
چکیده انگلیسی مقاله 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.
کلیدواژه‌های انگلیسی مقاله b quark, Effective Hamiltonian, Electroweak penguin, Gluonic penguin
نویسندگان مقاله h مهربان |


نشانی اینترنتی http://jsciences.ut.ac.ir/article_20098_03324fe3a6b48ace781e4133686c89f6.pdf
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