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 inv...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)lν(J=0,2).Our predictions are Br[B^(0)_(s)^(-)→D^(*+)_(s0)(2317)l^(-)ν^(-)]=0.50%,Br[B^(0)_(s)^(-)→D^(*+)_(s2)(2573)l^(-)ν^(-)]=0.40%,Br[B^(-)→D^(*)_(0)^(0)(2400)l^(-)ν^(-)]=0.79%,Br[B^(-)→D^(*)_(0)^(2)(2460)l^(-)ν^(-)]=0.28%,Br[B^(0)^(-)→D^(*)_(0)^(+)(2400)l^(-)ν^(-)]=0.58% and Br[B^(0)^(-)→D^(*)_(2)^(+)(2460)l^(-)ν^(-)]=0.27%.展开更多
We study the exclusive semileptonic and nonleptonic decays of the first radial excited heavy-light pseudoscalars Dq(2S) and Bq(2S) (q =u,d,s) with the improved Bethe-Salpeter (B-S) method which takes into account the ...We study the exclusive semileptonic and nonleptonic decays of the first radial excited heavy-light pseudoscalars Dq(2S) and Bq(2S) (q =u,d,s) with the improved Bethe-Salpeter (B-S) method which takes into account the relativistic effects in wave functions and transition matrix elements.展开更多
基金Supported by the National Natural Science Foundation of China under Grant No 11175051.
文摘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)lν(J=0,2).Our predictions are Br[B^(0)_(s)^(-)→D^(*+)_(s0)(2317)l^(-)ν^(-)]=0.50%,Br[B^(0)_(s)^(-)→D^(*+)_(s2)(2573)l^(-)ν^(-)]=0.40%,Br[B^(-)→D^(*)_(0)^(0)(2400)l^(-)ν^(-)]=0.79%,Br[B^(-)→D^(*)_(0)^(2)(2460)l^(-)ν^(-)]=0.28%,Br[B^(0)^(-)→D^(*)_(0)^(+)(2400)l^(-)ν^(-)]=0.58% and Br[B^(0)^(-)→D^(*)_(2)^(+)(2460)l^(-)ν^(-)]=0.27%.
基金Supported in part by the National Natural Science Foundation of China under Grant No 11175051.
文摘We study the exclusive semileptonic and nonleptonic decays of the first radial excited heavy-light pseudoscalars Dq(2S) and Bq(2S) (q =u,d,s) with the improved Bethe-Salpeter (B-S) method which takes into account the relativistic effects in wave functions and transition matrix elements.
