Light Scalars in NMSSM and $$B \to K{\kern 1pt} *{\kern 1pt} ll$$ Angular Observables

Abstract

Most of the Beyond-the-SM models predict scalar particles. Due to this, it is important to study all possible manifestations of the latter in different kind of experiments. In this talk we consider NMSSM scenarios with light (pseudo) scalars, which have masses ranging from 10 to 100 GeV. They escape the current experimental bounds since they have large singlet component. The main goal of the study is to revisit the $${{q}^{2}}$$ ‑dependent angular $$B \to K{\kern 1pt} *{\kern 1pt} ll$$ observables, which are sensitive to scalar contributions, and estimate the magnitude of the latter in the considered scenarios. In addition, prospects of experimental study of the effects are discussed.