Measurement of Branching Fraction and CP Asymmetry in B+ ->rho+ pi0

Abstract

We report a measurement of the branching fraction for the decay $B^{+}\to {\rho }^{+}{\pi }^0$ based on a 140 ${\mathrm{fb}}^{-1}$ data sample collected with the Belle detector at the KEKB asymmetric $e^{+}{e}^{-}$ collider. We measure the branching fraction $\mathcal{B}(B^{+}\to {\rho }^{+}{\pi }^0)=(13.2\pm 2.3(stat.{)}_{-1.9}^{+1.4}(sys.))\times 10^{-6}$, and the CP-violating asymmetry ${\mathcal{A}}_{CP}(B^{\mp }\to {\rho }^{\mp }{\pi }^0)=0.06\pm 0.19(stat.{)}_{-0.06}^{+0.04}(sys.)$.

5 pages, 3 figures; submitted to Phys. Rev. Lett

References in corpus (2)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Evidence of B0 --> rho0 pi0

Cited by in corpus (18)

• 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
• NNLO vertex corrections to non-leptonic B decays: Tree amplitudes
• A Study of B0 to rho+rho- Decays and Constraints on the CKM Angle alpha
• Isospin-breaking effects on alpha extracted in B --> pi pi, rho rho, rho pi
• The CKM Parameters
• Branching Fractions and CP Asymmetries in B0 -> pi0pi0, B+ -> pi+pi0 and B+ -> K+pi0 Decays and Isospin Analysis of the B -> pipi System
• Improved Measurement of the CKM Angle alpha Using B0->rho+rho- Decays
• Charmless Hadronic B-Meson Decays
• Charmless $B\to PV,VV$ decays and new physics effects in the mSUGRA model
• Isospin analysis of charmless B-meson decays
• Flavor symmetry analysis of charmless B --> VP decays
• Determination of gamma from Charmless B --> M1 M2 Decays Using U-Spin
• CP Asymmetries in B->K pi, K*pi, rho K Decays
• Calculating Phases Between B => K* pi Amplitudes
• Measurement of Branching Fraction and Direct CP Asymmetry in B0-->rho0 pi0 Decays
• First measurement of the $B^{+}\to {\pi }^{+}{\pi }^0{\pi }^0$ branching fraction and \textit{CP} asymmetry