Semileptonic decays of B meson transition into D-wave charmed meson doublets
Abstract
We use QCD sum rules to estimate the leading-order universal form factors describing the semileptonic B decay into orbital excited D-wave charmed doublets, including the (1-, 2-) states (D1*, D2') and the (2-, 3-) states (D2, D3*). The decay rates we predict are ΓB→D1*ℓν¯=ΓB→D2'ℓν¯=2.4×10-18GeV, ΓB→D2ℓν¯=6.2×10-17GeV, and ΓB→D3*ℓν¯=8.6×10-17GeV. The branching ratios are B(B→D1*ℓν¯)=B(B→D2'ℓν¯)=6.0×10-6, B(B→D2ℓν¯)=1.5×10-4, and B(B→D3*ℓν¯)=2.1×10-4, respectively.
- Publication:
-
Physical Review D
- Pub Date:
- February 2009
- DOI:
- 10.1103/PhysRevD.79.034025
- arXiv:
- arXiv:0902.4313
- Bibcode:
- 2009PhRvD..79c4025G
- Keywords:
-
- 14.40.-n;
- 11.55.Hx;
- 12.38.Lg;
- 12.39.Hg;
- Mesons;
- Sum rules;
- Other nonperturbative calculations;
- Heavy quark effective theory;
- High Energy Physics - Phenomenology
- E-Print:
- 11 pages, 3 figures