Search for exotic decays of the Higgs boson into long-lived particles with jet pairs in the final state at CLIC

Abstract

A study of the sensitivity of the CLIC_ILD detector model for massive long-lived particles produced in the decay of the Higgs boson is presented, using a data sample of e+e− collisions at sqrt{textrm{s}} = 350 GeV and sqrt{textrm{s}} = 3 TeV, corresponding to an integrated luminosity of 1 ab−1 and 3 ab−1, respectively. The sensitivity range covers long-lived particle lifetimes from 1 to 300 ps, masses between 25 and 50 GeV/c2, and a parent Higgs mass of 126 GeV/c2. Sensitivities to the production cross-section as a function of the long-lived-particle mass and lifetime are determined.