Factorization and Decay Constants $f_{D_s^*}$ and $f_{D_s}$
| dc.creator | Hwang, D. S. | |
| dc.creator | Keum, Y. -Y. | |
| dc.date | 1999-05-21 | |
| dc.date.accessioned | 2026-07-07T11:35:41Z | |
| dc.date.available | 2026-07-07T11:35:41Z | |
| dc.description | We calculate the decay constants of $D_s$ and $D_s^{*}$ with $\bar{B}^0 \ra D^{+}\ell^{-}ν$ and $\bar{B}^0 \ra D^{+}D_s^{-(*)}$ decays. In our analysis we take the factorization method including non-factorizable term contributions and used two different form factor behaviours (constant and monopole-type) for $F_0(q^2)$. We also consider the QCD-penguin and Electroweak-penguin contributions in hadronic decays within the NDR renormalization scheme at NLO calculation. We estimate the decay constant of the $D_s$ meson to be $233\pm49$ ${\rm MeV}$ for (pole/pole)-type form factor and $255\pm54$ ${\rm MeV}$ for (pole/constant)-type form factor. For $D_s^{*}$ meson, we get $f_{D_s^{*}} = 346 \pm 82$ ${\rm MeV}$, and $f_{D_s^{*}}/f_{D_s} = 1.43 \pm 0.45$ for (pole/constant)-type form factor. | |
| dc.description | Latex file, 18 pages, no figure | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9905433 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9905433 | |
| dc.identifier | Phys.Rev.D61:073003,2000 | |
| dc.identifier | doi:10.1103/PhysRevD.61.073003 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/198673 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Factorization and Decay Constants $f_{D_s^*}$ and $f_{D_s}$ | |
| dc.type | text |