论文标题
$ k_l^0，b^0，b_s \ to l^+_ i l^-_ j $衰减的手性量规leptoquark质量限制和分支比率为$ k_l^0，B^0
Chiral gauge leptoquark mass limits and branching ratios of $ K_L^0, B^0, B_s \to l^+_i l^-_j $ decays with account of the general fermion mixing in leptoquark currents
论文作者
论文摘要
手性量规Leptoquarks $ v^{l，r} $由手性四种颜色Quark-Lepton对称性对$ K_L^0，b^0，b_s \ to l_1 \，l_2 $的分支比的分支比进行了计算和分析，并使用一般参数crimare crimaRe crimark commard commard commark commard commard commard。从假设下的这些衰减的当前实验数据$ m_ {v^l} \ ll m_ {v^r} $较低的质量限制$ m_ {v^l} \ cos {γ_l}> 5.68 \，\，\，\，\ mbox {tev} $，在特定的情况下，是8. \，\，\ mbox {tev} $。计算手性量规leptoquark所预测的衰减的分支比率，以依赖于Leptoquark质量和混合参数进行分析。结果表明，与当前的实验数据一致，这些分支比为$ b_s，b^0 \ toμe$衰减可能接近其实验限制，而这些限制的限制可能是$ b_s，b^0 \ toτe，τμ$ $衰减的订单可能是〜$ 10^{ - 7} $。计算出的分支比率将有助于对这些衰减的进一步实验搜索。
The contributions of the chiral gauge leptoquarks $V^{L,R}$ induced by the chiral four color quark-lepton symmetry to the branching ratios of $ K_L^0, B^0, B_s \to l_1 \, l_2 $ decays are calculated and analysed using the general parametrizations of the fermion mixing matrices in the leptoguark currents. From the current experimental data on these decays under assumption $ m_{V^L} \ll m_{V^R} $ the lower mass limit $ m_{V^L} \cos{γ_L} > 5.68 \,\, \mbox{TeV}$ is found, which in particular case of equal gauge coupling constants gives $ m_{V^L} > 8.03 \,\, \mbox{TeV} $. The branching ratios of the decays under consideration predicted by the chiral gauge leptoquarks are calculated and analysed in dependence on the leptoquark masses and the mixing parameters. It is shown that in consistency with the current experimental data these branching ratios for $ B_s, B^0 \to μe $ decays can be close to their experimental limits and those for $ B_s, B^0 \to τe, τμ$ decays can be of order of~$10^{-7}$. The calculated branching ratios will be useful in the further experimental searches for these decays.
