On the determination of the relative sign of a1 and a2 from polarization measurements in [formula omitted] decay

Abstract

We point out that polarization measurements such as the longitudinal fraction and the transverse left-right asymmetry in the Bauer-Stech-Wirbel (BSW) Class III processes involving two final vector mesons, B − → ϱ −D ∗o taken as an example, are useful in the determination of the relative sign as well as the relative magnitudes of the coefficients a 1 and a 2.