Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-04-30
Phys.Lett. B441 (1998) 410-418
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, 4 figures, shortened for PLB publication
Scientific paper
10.1016/S0370-2693(98)01168-X
We examine the possibility for precise determination of |V_{ts}| (and |V_{td}/V_{ts}|) from the exclusive decays, $B --> K \ell^+ \ell^-, B --> K^* \ell^+ \ell^-$ (and $B --> \pi \ell^+ \ell^-, B --> \rho \ell^+ \ell^-$). We show that the ratio |V_{ts}| can be extracted experimentally with a small theoretical uncertainty from hadronic form--factors, if we {\bf appropriately constrain} kinematical regions of $q^2$. We also give detailed analytical and numerical results on the differential decay width $d\Gamma(B --> K^* \ell^+ \ell^-)/dq^2$, and the ratios of integrated branching fractions, ${\cal B}(B --> \rho \ell^+ \ell^-)/{\cal B}(B --> K^* \ell^+ \ell^-)$. We estimate that one can determine the ratio |V_{ts}| from those decays within theoretical accuracy of $\sim 10%$.
Aliev Takhmassib M.
Kim Chang Sub
Savci M.
No associations
LandOfFree
Exclusive B --> M l^+ l^- (M=π, K, ρ, K^*) Decays and Determinations of |V_{ts}| (and |V_{td}/V_{ts}|) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Exclusive B --> M l^+ l^- (M=π, K, ρ, K^*) Decays and Determinations of |V_{ts}| (and |V_{td}/V_{ts}|), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exclusive B --> M l^+ l^- (M=π, K, ρ, K^*) Decays and Determinations of |V_{ts}| (and |V_{td}/V_{ts}|) will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-5988