SEMILEPTONIC B DECAYS INTO EXCITED CHARMED MESONS $(D_1,D^*_2)$ IN HQEFT
- 10 June 2001
- journal article
- Published by World Scientific Pub Co Pte Ltd in International Journal of Modern Physics A
- Vol. 16 (14) , 2505-2531
- https://doi.org/10.1142/s0217751x01003627
Abstract
Exclusive semileptonic B decays into excited charmed mesons are studied up to the order of 1/mQ in the framework of the heavy quark effective field theory (HQEFT), which contains the contributions of both particles and antiparticles. Two wave functions and , which characterize the contributions from the kinematic operator at the order of 1/mQ, are calculated by using QCD sum rule approach in HQEFT. Zero recoil values of other two wave functions and are extracted from the excited charmed-meson masses. Possible effects from the transition wave functions arising from the chromomagnetic operators at the order of 1/mQ are analyzed. It is shown that the experimental measurements for the branching ratios of B→D1lν and can be understood in the framework of HQEFT.Keywords
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