Measurement of Angular Asymmetries in the Decays B->K*l+l-
High Energy Physics - Experiment
2016-04-06 v1
Abstract
We study the lepton forward-backward asymmetry AFB and the longitudinal K* polarization FL, as well as an observable P2 derived from them, in the rare decays B->K*l+l-, where l+l- is either e+e- or mu+mu-, using the full sample of 471 million BBbar events collected at the Upsilon(4S) resonance with the Babar detector at the PEP-II e+e- collider. We separately fit and report results for the B+->K*+l+l- and B0->K*0l+l- final states, as well as their combination B->K*l+l-, in five disjoint dilepton mass-squared bins. An angular analysis of B+->K*+l+l- decays is presented here for the first time.
Keywords
Cite
@article{arxiv.1508.07960,
title = {Measurement of Angular Asymmetries in the Decays B->K*l+l-},
author = {Babar Collaboration},
journal= {arXiv preprint arXiv:1508.07960},
year = {2016}
}
Comments
19 pages, 9 figures, submitted to PRD