Four Generation CP Violation in B -> phi K^0, pi^0 K^0, eta' K^0 and Hadronic Uncertainties
High Energy Physics - Phenomenology
2009-11-11 v1
Abstract
The fourth generation can give the correct trend of S_{phi K^0}, S_{pi^0 K^0} < sin2phi_1/beta, as indicated by data, and the effect, being largely leading order, is robust against hadronic uncertainties. The effect on S_{eta' K^0}, however, is diluted away by hadronic effects, and S_{eta' K^0} \simeq sin2phi_1/beta is expected. The near maximal arg[V^*_{t's}V_{t'b}] \lesssim 90^\circ that is needed could resolve the unequal direct CP violation seen in B -> K^+ pi^- and K^+ pi^0 modes, and is consistent with b ->s l^+l^- and B_s mixing constraints.
Cite
@article{arxiv.hep-ph/0603097,
title = {Four Generation CP Violation in B -> phi K^0, pi^0 K^0, eta' K^0 and Hadronic Uncertainties},
author = {Wei-Shu Hou and Makiko Nagashima and Guy Raz and Andrea Soddu},
journal= {arXiv preprint arXiv:hep-ph/0603097},
year = {2009}
}
Comments
4 pages, 10 figures