Fat b-jet analyses using old and new clustering algorithms in new Higgs boson searches at the LHC
Fat b-jet analyses using old and new clustering algorithms in new Higgs boson searches at the LHC
We compare different jet-clustering algorithms in establishing fully hadronic final states stemming from the chain decay of a heavy Higgs state into a pair of the 125 GeV Higgs boson that decays into bottom-antibottom quark pairs. Such 4b events typically give rise to boosted topologies, wherein bb¯ pairs emerging from each 125 GeV Higgs boson tend to merge into a single, fat b-jet. Assuming large hadron collider (LHC) settings, we illustrate how both the efficiency of selecting the multi-jet final state and the ability to reconstruct from it the masses of all Higgs bosons depend on the choice of jet-clustering algorithm and its parameter settings. We indicate the optimal choice of clustering method for the purpose of establishing such a ubiquitous beyond the SM (BSM) signal, illustrated via a Type-II 2-Higgs Doublet Model (2HDM).
hep-ph
Chakraborty, A.
959eb0eb-b732-4d9e-923d-4cc3ed65a47e
Dasmahapatra, S.
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Day-Hall, H.A.
80238938-caa4-4807-8903-358e279f16d3
Ford, B.
7dcf9150-e4fd-430b-8903-2c6bbc5bcccc
Jain, S.
23a73eaa-8e0f-43ce-9f25-24a37b376b12
Moretti, S.
b57cf0f0-4bc3-4e02-96e3-071255366614
29 April 2023
Chakraborty, A.
959eb0eb-b732-4d9e-923d-4cc3ed65a47e
Dasmahapatra, S.
eb5fd76f-4335-4ae9-a88a-20b9e2b3f698
Day-Hall, H.A.
80238938-caa4-4807-8903-358e279f16d3
Ford, B.
7dcf9150-e4fd-430b-8903-2c6bbc5bcccc
Jain, S.
23a73eaa-8e0f-43ce-9f25-24a37b376b12
Moretti, S.
b57cf0f0-4bc3-4e02-96e3-071255366614
Chakraborty, A., Dasmahapatra, S., Day-Hall, H.A., Ford, B., Jain, S. and Moretti, S.
(2023)
Fat b-jet analyses using old and new clustering algorithms in new Higgs boson searches at the LHC.
European Physical Journal C, 83 (4), [347].
(doi:10.1140/epjc/s10052-023-11537-4).
Abstract
We compare different jet-clustering algorithms in establishing fully hadronic final states stemming from the chain decay of a heavy Higgs state into a pair of the 125 GeV Higgs boson that decays into bottom-antibottom quark pairs. Such 4b events typically give rise to boosted topologies, wherein bb¯ pairs emerging from each 125 GeV Higgs boson tend to merge into a single, fat b-jet. Assuming large hadron collider (LHC) settings, we illustrate how both the efficiency of selecting the multi-jet final state and the ability to reconstruct from it the masses of all Higgs bosons depend on the choice of jet-clustering algorithm and its parameter settings. We indicate the optimal choice of clustering method for the purpose of establishing such a ubiquitous beyond the SM (BSM) signal, illustrated via a Type-II 2-Higgs Doublet Model (2HDM).
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Accepted/In Press date: 18 April 2023
Published date: 29 April 2023
Additional Information:
Funding Information:
SM is supported in part through the NExT Institute and the STFC Consolidated Grant ST/L000296 /1. SJ is partially funded by DISCnet studentship. The work of AC is funded by the Department of Science and Technology, Government of India, under Grant No. IFA18-PH 224 (INSPIRE Faculty Award). We all thank Claire H. Shepherd-Themistocleous and Emmanuel Olaiya for useful discussions. SJ acknowledge the use of the IRIDIS5 High Performance Computing Facility, and associated support services at the University of Southampton, in the completion of this work.
Funding Information:
SM is supported in part through the NExT Institute and the STFC Consolidated Grant ST/L000296 /1. SJ is partially funded by DISCnet studentship. The work of AC is funded by the Department of Science and Technology, Government of India, under Grant No. IFA18-PH 224 (INSPIRE Faculty Award). We all thank Claire H. Shepherd-Themistocleous and Emmanuel Olaiya for useful discussions. SJ acknowledge the use of the IRIDIS5 High Performance Computing Facility, and associated support services at the University of Southampton, in the completion of this work.
Publisher Copyright:
© 2023, The Author(s).
Keywords:
hep-ph
Identifiers
Local EPrints ID: 477366
URI: http://eprints.soton.ac.uk/id/eprint/477366
ISSN: 1434-6044
PURE UUID: 9933ce1d-e797-48cd-91a2-fd86fad2e963
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Date deposited: 05 Jun 2023 16:44
Last modified: 17 Mar 2024 03:57
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Contributors
Author:
A. Chakraborty
Author:
S. Dasmahapatra
Author:
H.A. Day-Hall
Author:
B. Ford
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