Test of factorization for the long-distance effects from charmonium on $B\to K\ell^+\ell^-$
High Energy Physics - Lattice
2019-01-28 v1
Abstract
We report on a calculation of the charmonium contribution to the decay using lattice simulations with 2+1 flavors of Mobius domain wall fermions. We focus on the region of below the resonance and test the factorization approximation to estimate the amplitude. We show a possible discrepancy between the lattice calculation and the factorization method for the non-factorizable contribution.
Cite
@article{arxiv.1901.08784,
title = {Test of factorization for the long-distance effects from charmonium on $B\to K\ell^+\ell^-$},
author = {Katsumasa Nakayama and Shoji Hashimoto},
journal= {arXiv preprint arXiv:1901.08784},
year = {2019}
}
Comments
7pages, 5 figs. Proceedings of the 36th International Symposium on Lattice Field Theory (Lattice 2018), July 22-28, 2018, East Lancing, USA