We study the K* polarization states in the exclusive 4-body B meson decay B to K* (to K pi) l+ l- in the low dilepton mass region working in the framework of QCDF. We review the construction of the CP conserving transverse and transverse/longitudinal observables AT2, AT3, and AT4. We focus here, on analyzing their behaviour at large recoil energy in presence of right-handed currents.
@article{arxiv.0912.1339,
title = {The exclusive B to K*(to K pi) l+ l- decay: CP conserving observables},
author = {U. Egede and T. Hurth and J. Matias and M. Ramon and W. Reece},
journal= {arXiv preprint arXiv:0912.1339},
year = {2014}
}