Effects of Littlest Higgs model in rare D meson decays
High Energy Physics - Phenomenology
2009-11-11 v2
Abstract
A tree-level flavor changing neutral current in the up-like quark sector appears in one of the variations of the Littlest Higgs model. We investigate the effects of this coupling in the D+ -> pi+ l+ l- and D0 -> rho0 l+ l- decays, which are the most appropriate candidates for the experimental studies. However, the effects are found to be too small to be observed in the current and the foreseen experimental facilities. These decays are still dominated by the standard model long-distance contributions, which are reevaluated based on the new experimental input.
Keywords
Cite
@article{arxiv.hep-ph/0511048,
title = {Effects of Littlest Higgs model in rare D meson decays},
author = {Svjetlana Fajfer and Sasa Prelovsek},
journal= {arXiv preprint arXiv:hep-ph/0511048},
year = {2009}
}
Comments
13 pages, 3 figures; new constraint on scale f taken into account and effects on charm meson decays recalculated