Study of Nonleptonic Bq∗→DqV and PqD∗ Weak Decays
Motivated by the powerful capability of measurement for the b hadron decays at LHC and SuperKEKB/Belle-II, the nonleptonic B-∗→DD-∗, Dρ-, DK∗-, πD∗, and KD∗ decays are studied. With the amplitudes calculated with factorization approach and the form factors evaluated with the BSW model, branching fra...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
|
| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2015/767523 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Motivated by the powerful capability of measurement for the b hadron decays at LHC and SuperKEKB/Belle-II, the nonleptonic B-∗→DD-∗, Dρ-, DK∗-, πD∗, and KD∗ decays are studied. With the amplitudes calculated with factorization approach and the form factors evaluated with the BSW model, branching fractions and polarization fractions are firstly presented. Numerically, the CKM-favored B-q∗→DqDs∗- and Dqρ- decays have branching fractions ~10−8, which should be sought for with priority and firstly observed by LHC and Belle-II. The B-q∗→DqK∗ and Dqρ decays are dominated by the longitudinal polarization states, while the parallel polarization fractions of B-q∗→DqD-∗ decays are comparable with the longitudinal ones; numerically, f∥ + fL≃ 95% and fL:f∥≃5:4. Some comparisons between B-q∗0→DqV and their corresponding B-q0→Dq∗V decays are performed, and the relation fL,∥(B-∗0→DV)≃fL,∥(B-0→D∗V) is found. With the implication of SU(3) flavor symmetry, the ratios Rdu and Rds are discussed and suggested to be verified experimentally. |
|---|---|
| ISSN: | 1687-7357 1687-7365 |