Constraint on the warped space from B→X<sub>s</sub>γ

  • We analyze the theoretical prediction on the branching ratio of B→Xsγ to order ΛEW2/ΛKK2 in extension of the standard model with a warped extra dimension and the custodial symmetry SU(3)c×SU(2)L×SU(2)R×U(1)X×PLR, where ΛKK denotes the energy scale of low-lying Kaluze-Klein excitations and ΛEW denotes the electroweak energy scale. Contributions from the in nite series of Kaluze-Klein excitations are summed over through the residue theorem. The numerical result indicates that the present experimental data constrain the parameter space of the concerned model strongly.
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CHEN Jian-Bin, FENG Tai-Fu, GAO Tie-Jun and SUN Ke-Sheng. Constraint on the warped space from B→X<sub>s</sub>γ[J]. Chinese Physics C, 2013, 37(6): 063102. doi: 10.1088/1674-1137/37/6/063102
CHEN Jian-Bin, FENG Tai-Fu, GAO Tie-Jun and SUN Ke-Sheng. Constraint on the warped space from B→X<sub>s</sub>γ[J]. Chinese Physics C, 2013, 37(6): 063102.  doi: 10.1088/1674-1137/37/6/063102 shu
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Received: 2012-06-13
Revised: 2012-08-10
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Constraint on the warped space from B→X<sub>s</sub>γ

Abstract: We analyze the theoretical prediction on the branching ratio of B→Xsγ to order ΛEW2/ΛKK2 in extension of the standard model with a warped extra dimension and the custodial symmetry SU(3)c×SU(2)L×SU(2)R×U(1)X×PLR, where ΛKK denotes the energy scale of low-lying Kaluze-Klein excitations and ΛEW denotes the electroweak energy scale. Contributions from the in nite series of Kaluze-Klein excitations are summed over through the residue theorem. The numerical result indicates that the present experimental data constrain the parameter space of the concerned model strongly.

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