A search for pair production of new light bosons decaying into muons

TL;DR

This paper reports a search for new light bosons decaying into muons using CMS data, setting upper limits on production rates and comparing results with supersymmetric and hidden sector models.

Contribution

It presents a novel search for pair-produced light bosons decaying into muons at the LHC, providing model-independent limits and testing specific theoretical scenarios.

Findings

No excess observed over background

Set upper limits on production cross section times branching ratio

Constraints placed on models with light bosons and hidden sectors

Abstract

A search for the pair production of new light bosons, each decaying into a pair of muons, is performed with the CMS experiment at the LHC, using a dataset corresponding to an integrated luminosity of 20.7 inverse femtobarns collected in proton-proton collisions at center-of-mass energy of sqrt(s) = 8 TeV. No excess is observed in the data relative to standard model background expectation and a model independent upper limit on the product of the cross section, branching fraction, and acceptance is derived. The results are compared with two benchmark models, the first one in the context of the next-to-minimal supersymmetric standard model, and the second one in scenarios containing a hidden sector, including those predicting a nonnegligible light boson lifetime.