Semileptonic Production of Scalar and Tensor p-Wave Charmed Mesons

【摘要】 With the same constituents of quark and antiquark,the p-wave state has a higher mass than the corresponding s-wave state,but the relativistic corrections are much larger in the processes of which p-wave mesons are involved.Considering this,the relativistic Bethe-Salpeter method is applied to estimate the branching fractions of semileptonic decays B_（s） D_（sJ）^* lv（J = 0,2）.Our predictions are Br[B_s⁰ → D_s0^*+（2317）l-v]- 0.50%,Br[B_s⁰ → D_s2^*+（2573）l-v]= 0.40%,Br[B^-→ D₀^*0（2400）l-v]= 0.79%,Br[B^-→ D₂^*+（2460）l-v]= 0.28%,Br[B⁰ → D₀^*+（2400）l-v]= 0.58%and Br[B⁰ → D₂^*+（2460）l-v]= 0.27%.更多还原

【Abstract】 With the same constituents of quark and antiquark,the p-wave state has a higher mass than the corresponding s-wave state,but the relativistic corrections are much larger in the processes of which p-wave mesons are involved.Considering this,the relativistic Bethe-Salpeter method is applied to estimate the branching fractions of semileptonic decays B_（s） D_（sJ）^* lv（J = 0,2）.Our predictions are Br[B_s⁰ → D_s0^*+（2317）l-v]-0.50%,Br[B_s⁰ → D_s2^*+（2573）l-v]= 0.40%,Br[B^-→ D₀^*0（2400）l-v]= 0.79%,Br[B^-→ D₂^*+（2460）l-v]= 0.28%,Br[B⁰ → D₀^*+（2400）l-v]= 0.58%and Br[B⁰ → D₂^*+（2460）l-v]= 0.27%.更多还原