A Novel Experimental Search Channel for Very Light Higgses in the 2HDM Type I

About

We present a reinterpretation study of existing results from the CMS Collaboration, specifically, searches for light Beyond the Standard Model (BSM) Higgs pairs produced in the chain decay $pp\to H_{\rm SM}\to hh(aa)$ into a variety of final states, in the context of the CP-conserving 2-Higgs Doublet Model (2HDM) Type-I. Through this, we test the LHC sensitivity to a possible new signature, $pp\to H_{\rm SM}\to ZA\to ZZ h$, with $ZZ\to jj \mu^+\mu^-$ and $h\to b\bar b$. We investigate the significance of a potentially visible signal through a full Monte Carlo simulation down to the {parametrised} detector level and show that it is an alternative promising channel to standard four-body searches for light BSM Higgses at the LHC already with an integrated luminosity of ${\cal L} = 300~{\rm fb}^{-1}$. For a tenfold increase of the latter, discovery should be possible over most of the allowed parameter space..

0:00:00 Slide 1

0:02:20 Slide 2

0:06:16 Slide 3

0:07:23 Slide 4

0:08:39 Slide 5

0:10:07 Slide 6

0:11:42 Slide 7

0:15:16 Slide 8