Annihilation in Factorization-suppressed B Decays Involving a 1^1P_1 Meson and Search for New-Physics Signals

Abstract

The recent measurements of large transverse fractions in B \to ϕK^* decays represent a challenge for theory. It was shown that the QCD penguin annihilation could contribute to the transverse amplitudes such that the observation could be accounted for in the Standard Model. However, if one resorts to new physics for resolutions, then the relevant 4-quark operators should be tensor-like or scalar-like. We show that the same annihilation effects could remarkably enhance the longitudinal rates of factorization-suppressed B\to h_1(1380) K^*, b_1(1235) K^* modes to be (12.0^{+4.1}_{-3.0})\times 10^{-6} and (7.0\pm 3.5)\times 10^{-6}, respectively, but attend to be cancelled in the transverse components. Nevertheless, the transverse fractions of B\to h_1(1380) K^* can become sizable due to new-physics contributions. The measurements of these decays can thus help us to realize the role of annihilation topologies in charmless B decays and offer a theoretically clean window to search for the evidence of new physics.

24 pages, typos and numerical results corrected, version to appear in PRD

References in corpus (7)

• B_{d,s}->rho, omega, K*, phi Decay Form Factors from Light-Cone Sum Rules Revisited
• Final State Interactions in Hadronic B Decays
• Measurement of Polarization and Triple-Product Correlations in B -> phi K^* Decays
• Polarizations in B -> VV decays
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• Scalar interactions and the polarizations of $B\to \varphi K^{\ast }$
• Baryon helicity in B decay

Cited by in corpus (20)

• Light-Cone Distribution Amplitudes of Axial-vector Mesons
• Branching Ratios and Polarization in B-> VV,VA,AA Decays
• $B\to K_1\gamma$ Decays in the Light-Cone QCD Sum Rules
• Hadronic charmless B decays B-> AP
• Two-parton Light-cone Distribution Amplitudes of Tensor Mesons
• Vector-Tensor and Vector-Vector Decay Amplitude Analysis of B0->phi K*0
• Light-Cone Distribution Amplitudes for the Light $1^1{P}_1$ Mesons
• Study of $B\to K^{\ast }\rho ,K^{\ast }\omega$ Decays with Polarization in Perturbative QCD Approach
• Amplitude Analysis of the B+- ->phi K*(892)+- Decay
• Branching ratios of $B_c\to AP$ decays in the perturbative QCD approach
• Study of the pure annihilation $B_c\to A_2{A}_3$ decays
• Search for B0->phiK+pi- Decays with Large K+pi- Invariant Mass
• Branching Ratios and CP Asymmetries of B \to a_1(1260) πand a_1(1260) K Decays
• A lattice QCD calculation of the transverse decay constant of the b1(1235) meson
• Weak Annihilation Topologies and Final State Interactions in D -> PP Decays
• Pseudoscalar and Scalar Operators of Higgs-Penguins in the MSSM and B to phi K^*, K eta(') Decays
• Calculation of the Branching Ratio of $B^{-}\to h_c+K^{-}$ in PQCD
• $CP$-violating observables in four-body $B\to \varphi (\to K\bar{K})K^{\ast }(\to K\pi )$ decays
• Properties of Axial-vector Mesons and Charmless B Decays: B -> VV, VA, AA
• Nonleptonic charmless two-body $B\to AT$ decays