@article{oai:aue.repo.nii.ac.jp:00004815,
 author = {Matsuda, Masahisa and Suzuki, Tsuyoshi B.},
 issue = {3-4},
 journal = {Physics Letters B},
 month = {},
 note = {text, We study the semileptonic branching fraction of B-meson into higher resonance of charmed meson D^<**> by using the Bjorken sum rule and the heavy quark effective theory(HQET). This sum rule and the current experiment of B-meson semileptonic decay into D and D^* predict that the branching ratio into D^<**>lν_l is about 1.7%. This predicted value is larger than the value obtained by various models.},
 pages = {371--375},
 title = {Semileptonic decay of B-meson into D^<**> and the Bjorken sum rule.},
 volume = {380},
 year = {1996}
}