Branching Fraction Measurements of Charged B Decays to K*+K+K-, K*+pi+K-, K*+K+pi- and K*+pi+pi- Final States

Abstract

Branching fraction and asymmetry measurements of charmless $B^{+}\to K^{\ast +}{h}_1^{+}{h}_2^{-}$ (where $h_{1,2}$ = $K$, $\pi$) decays are presented, using a data sample of 232 million ${\rm Y}(4S)\to$ $BB$ decays collected with the BaBar detector at the SLAC PEP-II asymmetric-energy $B$ factory. Using a maximum likelihood fit, the following branching fraction results were obtained: $\mathcal{B}$($B^{+}\to K^{\ast +}{K}^{+}{K}^{-})$ = (36.2 $\pm$ 3.3 $\pm$ 3.6) $\times$ 10${}^{-6}$ and $\mathcal{B}$($B^{+}$ $\to$ $K^{\ast +}{\pi }^{+}{\pi }^{-}$) = (75.3 $\pm$ 6.0 $\pm$ 8.1) $\times$ 10${}^{-6}$. Upper limits were set for $\mathcal{B}$($B^{+}$ $\to$ $K^{\ast +}{\pi }^{+}{K}^{-}$) $<$ 11.8 $\times$ 10${}^{-6}$ and $\mathcal{B}$($B^{+}$ $\to$ $K^{\ast +}{K}^{+}{\pi }^{-}$) $<$ 6.1 $\times$ 10${}^{-6}$ at 90% confidence level. The charge asymmetries for the decays $B^{+}\to K^{\ast +}{K}^{+}{K}^{-}$ and $B^{+}$ $\to$ $K^{\ast +}{\pi }^{+}{\pi }^{-}$ were measured to be ${\mathcal{A}}_{K^{\ast }KK}=0.11\pm 0.08\pm 0.03$ and ${\mathcal{A}}_{K^{\ast }\pi \pi }=0.07\pm 0.07\pm 0.04$, respectively. The first error quoted on branching fraction and asymmetry measurements is statistical and the second systematic.

8 pages, 2 postscript figures, submitted to ICHEP2006, published in Phys. Rev. D (Rapid Communications). Compared to previous version, added figure and reworded a paragraph

Cited by in corpus (11)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2018
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021
• Charged $B$ Mesogenesis
• Charmless Hadronic B-Meson Decays
• Search for the highly suppressed decays B- -> K+ pi- pi- and B- -> K- K- pi+
• Measurements of the Branching Fractions of B0 --> K^*0K+K-, B0 --> K^*0pi+K-, B0 --> K*0K+pi-, and B0 --> K*0pi+pi-
• Observation of the Rare Decay B0 --> KsK+/-pi-/+
• Study of B Meson Decays with Excited eta and eta' Mesons
• Looking for New Physics in B --> K^* πand B --> ρK Decays
• The virtual contributions from $K^{\ast }$ in the $B\to K^{\ast }\pi h$ and $B\to K\rho h$ decays