摘要
In this paper, we calculate the branching ratios of Ab→pK^- and pπ^- decays in the flavor changing Z' model. We find that the branching ratios for these two decay modes are sensitive to the contributions of the Z' boson. For Ab→pK^- decay, if the left-handed couplings are equal to the right-handed couplings, the branching ratio of this decay could match up to the currently experimental data for ξs =0.01 and -52°〈 Ф^Ls 〈 132°, or ξs=0.004 and 0°〈Ф^Ls 〈84°; if only the left-handed couplings are considered, it could match up to the experimental data for ξs =0.01 and - 10° 〈 Ф^Ls 〈 138°. And for Ab→pπ^- decay, if the left-handed and right-handed couplings are equal, the branching ratio of Ab→pπ^- decay may be consistent with the currently experimental data with ξd =0.05 and -135°〈 Ф^Ld 〈43°, if only the left-handed couplings are considered, it may be consistent with ξd=0.05 and -114° 〈Ф^Ld 〈8°.
In this paper, we calculate the branching ratios of Ab→pK^- and pπ^- decays in the flavor changing Z' model. We find that the branching ratios for these two decay modes are sensitive to the contributions of the Z' boson. For Ab→pK^- decay, if the left-handed couplings are equal to the right-handed couplings, the branching ratio of this decay could match up to the currently experimental data for ξs =0.01 and -52°〈 Ф^Ls 〈 132°, or ξs=0.004 and 0°〈Ф^Ls 〈84°; if only the left-handed couplings are considered, it could match up to the experimental data for ξs =0.01 and - 10° 〈 Ф^Ls 〈 138°. And for Ab→pπ^- decay, if the left-handed and right-handed couplings are equal, the branching ratio of Ab→pπ^- decay may be consistent with the currently experimental data with ξd =0.05 and -135°〈 Ф^Ld 〈43°, if only the left-handed couplings are considered, it may be consistent with ξd=0.05 and -114° 〈Ф^Ld 〈8°.
基金
Supported by National Natural Science Foundation of China(10947020,10975047,10979008)
the Natural Science Foundation of He'nan Province(13A140814)
Program for Science and Technology Innovation Talents in Universities of Henan Province(2012HATIT030)
Youth Foundation of Nanyang Normal University(QN2011010)