CP Asymmetries in B to f_0 K_S Decays
Abstract
We consider the branching ratio and the CP asymmetries in B to f_0(980)K_S decay to the end of determining the deviation of the time-dependent CP asymmetry from sin(2 beta) arising from Standard Model physics. We obtain Delta S_{f_0 K_S} within the context of the QCD factorization framework for the B to f_0(980)K_S decay amplitudes assuming the f_0(980) is a q\bar{q} state and employing a random scan over the theoretical parameter space to assess the possible range in Delta S_{f_0 K_S}. Imposing the value of the experimental branching ratio within 1 sigma and 3 sigma, respectively, of its central value as a constraint, we find the range of Delta S_{f_0 K_S} to be [0.018, 0.033] for a scan in which the parameters are allowed to vary within 1 sigma of their central values and the range [-0.019, 0.064] for a scan in which the parameters vary within 3 sigma of their central values.
Keywords
Cite
@article{arxiv.0805.1963,
title = {CP Asymmetries in B to f_0 K_S Decays},
author = {Rupak Dutta and Susan Gardner},
journal= {arXiv preprint arXiv:0805.1963},
year = {2008}
}
Comments
27 pages, 10 figures, references added