Determining the Phases alpha and gamma from Direct CP Violation in B_u, B_d and B_s Decays to Two Vectors

Abstract

A method for clean determination of the unitarity angles alpha and gamma is proposed that uses only direct CP violation and does not require any time dependent measurements. The method takes advantage of helicity amplitudes for B_u, B_d and B_s decay to two vector mesons and can be used, at any B-facility, in conjunction with a large number of modes. It also allows for experimental tests of theoretical approximations involved.

12 pages, no figures

References in corpus (5)

• A New Approach to a Global Fit of the CKM Matrix
• 2000 CKM-Triangle Analysis A Critical Review with Updated Experimental Inputs and Theoretical Parameters
• Measurement of CP-violating asymmetries in B0 decays to CP eigenstates
• Measurement of the CP Violation Parameter sin(2phi_1) in B^0_d Meson Decays
• CP Asymmetry Measurements in psi K0 and the CKM Paradigm

Cited by in corpus (10)

• Charmless non-leptonic B_s decays to PP, PV and VV final states in the pQCD approach
• Observation of B+ -> rho+ rho0
• Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B --> rho K* and B --> f0(980) K* decays
• First Evidence for $B_s^0\to \varphi \varphi$ Decay and Measurements of Branching Ratio and $A_{CP}$ for $B^{+}\to \varphi K^{+}$
• Observation of B0 -> K*0 K*0bar and search for B0 -> K*0 K*0
• Observation of B Meson Decays to omegaK* and Improved Measurements for omegarho and omega f_0
• Search for $B^0\to K^{\ast 0}\overline{K}{}^{\ast 0}$, $B^0\to K^{\ast 0}{K}^{\ast 0}$ and $B^0\to K^{+}{\pi }^{-}{K}^{\mp }{\pi }^{\pm }$ Decays
• B Meson Decays to mega K*, omega rho, omega omega, omega phi, and omega f0
• Evidence for Neutral B Meson Decays to wK*0
• Evidence for the decay B0 --> omega omega and search for B0 --> omega phi