The role of long distance contribution to the B -> K* l(+) l(-) in the Standard Model

We investigate rare semileptonic B -> K* l(+) l(-) by looking at a specific long distance contribution. Our analysis is limited to the very small values of physical accessible range of invariant mass of the leptonic couple q(2). We show that the light quarks loop has to be accounted for, along with the charming penguin contribution, in order to accurately compute the q(2)-spectrum in the Standard Model. Such a long distance contribution may also play a role in the analysis of the lepton flavor universality violation in this process. (c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).