1106.3283 (Damir Becirevic et al.)

On transverse asymmetries in B --> K* l+l-    [PDF]

Damir Becirevic, Elia Schneider

We discuss the three independent asymmetries, AT(2)(q2), AT(im)(q2) and
AT(re)(q2), that one can build from the amplitudes A_perp(q2) and A_par(q2).
These quantities are expected to be accessible from the new B-physics
experiments, they are sensitive to the presence of new physics, and they are
not significantly sensitive to hadronic uncertainties. Studying their low
q2-dependence can be helpful in discerning among various possible new physics
scenarios. All three asymmetries can be extracted from the full angular
analysis of B-->K* l+l-. Our formulas apply to both the massless and the
massive lepton case.

View original: http://arxiv.org/abs/1106.3283