Journal
PHYSICS LETTERS B
Volume 833, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2022.137341
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Funding
- SAMKHYA: the High Performance Computing Facility by the Institute of Physics (IoP), Bhubaneswar, India
- DST-Inspire Fellowship
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The letter discusses the production of di-Higgs mediated by a new singlet scalar at LHC, and examines the prospects of finding such a resonance at the High-Luminosity LHC using experimental data and multivariate analysis.
At the LHC, the gluon-initiated processes are considered to be the primary source of di-Higgs production. However, in the presence of a new resonance, the light-quark initiated processes can also contribute significantly. In this letter, we look at the di-Higgs production mediated by a new singlet scalar. The singlet is produced in both quark-antiquark and gluon fusion processes through loops involving a scalar leptoquark and right-handed neutrinos. With benchmark parameters inspired from the recent resonant di-Higgs searches by the ATLAS collaboration, we examine the prospects of such a resonance in the TeV-range at the High-Luminosity LHC (HL-LHC) in the b (b) over bar tau(+)tau(-) mode with a multivariate analysis. We obtain the 5 sigma and 2 sigma contours and find that a significant part of the parameter space is within the reach of the HL-LHC. (C) 2022 The Author(s). Published by Elsevier B.V.
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