Probe of new light Higgs bosons from bottomonium chi_{b0} decay

TL;DR

This paper investigates the potential to detect new light Higgs bosons through bottomonium chi_{b0} decay processes, proposing that high-luminosity experiments could constrain models with additional Higgs particles.

Contribution

It provides calculations of branching ratios for chi_{b0} decays into tau pairs via Higgs mediation and assesses experimental sensitivity to these processes.

Findings

Future high-luminosity Upsilon(3S) experiments can significantly constrain the Type-II two-Higgs-doublet model.

The decay process chi_{b0} --> tau+ tau- is a promising channel to probe light Higgs bosons.

The study links bottomonium decay measurements to new physics searches beyond the Standard Model.

Abstract

We calculate the branching ratios of chi_{b0} --> tau+ tau- via an s-channel Higgs boson and estimate the sensitivity to this process from Upsilon --> gamma chi_{b0} --> gamma tau+ tau-. We show that future running at the Upsilon(3S) at a very high luminosity super B factory can put significant constraints on the Type-II two-Higgs-doublet model when the discovered 125 GeV Higgs boson is the heavier of the two CP-even scalars.