Test of factorization for the long-distance effects from charmonium in $B\rightarrow K\ell^+\ell^-$

Nakayama, Katsumasa; Hashimoto, Shoji; on behalf of JLQCD Collaboration,

doi:10.22323/1.334.0221

Volume 334 - The 36th Annual International Symposium on Lattice Field Theory (LATTICE2018) - Standard Model Parameters and Renormalization

Test of factorization for the long-distance effects from charmonium in

$B\rightarrow K\ell^+\ell^-$

K. Nakayama*, S. Hashimoto on behalf of JLQCD Collaboration

*: corresponding author

Full text: pdf

Published on: May 29, 2019

Abstract

We report on a calculation of the charmonium contribution to the decay

$B \rightarrow K\ell^+\ell^-$ using lattice simulations with 2+1 flavors of Mobius domain wall fermions.
We focus on the region of

$q^2$ below the

$J/\psi$ resonance and test the factorization approximation to estimate the amplitude.
We show a possible discrepancy between lattice calculation and factorization method for the non-factorizable contribution.

DOI: https://doi.org/10.22323/1.334.0221

How to cite

Metadata are provided both in article format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in proceeding format which is more detailed and complete.

Open Access

Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.