Determining CP violation angle $\gamma$ with B decays into a scalar/tensor meson

Abstract

We propose a new way for determining the CP violation angle $\gamma$ without any hadronic uncertainty. The suggested method is to use the two triangles formed by the decay amplitudes of $B^{\pm }\to (D^0,{\bar{D}}^0,D_{CP}^0)K_{0(2)}^{\ast \pm }(1430)$. The advantages are that large CP asymmetries are expected in these processes and only singly Cabibbo-suppressed $D$ decay modes are involved. Measurements of the branching fractions of the neutral $B_d$ decays into $D{K}_{0(2)}^{\ast }(1430)$ and the time-dependent CP asymmetries in $B_s\to (D^0,{\bar{D}}^0)M$ ($M=f_0(980),f_0(1370),f_2^{\prime }(1525),f_1(1285),f_1(1420),h_1(1180))$ provide an alternative way to extract the angle $\gamma$, which will increase the statistical significance.

5 pages, 2 figures, accepted for publication in Physical Review D as a Rapid Communication

References in corpus (8)

• $B\to S$ Transition Form Factors in the PQCD approach
• Measurement of CP--violating asymmetries in D0 --> pi+ pi- and D0 --> K+K- decays at CDF
• $B_s\to f_0(980)$ form factors and $B_s$ decays into $f_0(980)$
• B to tensor meson form factors in the perturbative QCD approach
• Nonleptonic $B_s$ to charmonium decays: analyses in pursuit of determining the weak phase ${\beta }_s$
• Study of $K_0^{\ast }(1430)$ and $a_0(980)$ from $B\to K_0^{\ast }(1430)\pi$ and $B\to a_0(980)K$ Decays
• Study of the K+ pi+ pi- Final State in B+ -> J/psi K+ pi+ pi- and B+ -> psi-prime K+ pi+ pi-
• Determining the CP Violation Angle $\gamma$ in $B_s$ Decays without Hadronic Uncertainty

Cited by in corpus (11)

• Search for the decay $B_s^0\to {\overline{D}}^0{f}_0(980)$
• Weak Decays of Doubly Heavy Baryons: SU(3) Analysis
• Weak Decays of Doubly Heavy Baryons: Multi-body Decay Channels
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• The $B_c\to D^{(\ast )}T$ decays in perturbative QCD approach
• The $B(B_s)\to D_{(s)}({\bar{D}}_{(s)})T$ and $D_{(s)}^{\ast }({\bar{D}}_{(s)}^{\ast })T$ decays in perturbative QCD approach
• S-wave contributions in ${\bar{B}}_s^0\to (D^0,{\bar{D}}^0){\pi }^{+}{\pi }^{-}$ within perturbative QCD approach
• CP violation effects on the measurement of $\gamma$ from $B\to DK$
• Recent Developments on the CKM Matrix
• $B\to D{K}_{0,2}^{\ast }$ Decays: PQCD analysis to determine CP violation phase angle $\gamma$
• Navier-Stokes transport coefficients for driven inelastic Maxwell models