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Probing the type-II seesaw mechanism through the production of Higgs bosons at a lepton collider

Agrawal, Pankaj; Mitra, Manimala; Niyogi, Saurabh; Shil, Sujay; Spannowsky, Michael

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Authors

Pankaj Agrawal

Manimala Mitra

Saurabh Niyogi

Sujay Shil



Abstract

We investigate the production and decays of doubly-charged Higgs bosons for the Type-II seesaw mechanism at an eþe− collider with two center of mass energies, ffiffiffi s p ¼ 380 GeV and 3 TeV, and analyze the fully hadronic final states in detail. Lower mass ranges can be probed during the 380 GeV run of the collider, while high mass ranges, which are beyond the 13 TeV Large Hadron Collider discovery reach, can be probed with ffiffiffi s p ¼ 3 TeV. For such a heavy Higgs boson, the final decay products are collimated, resulting in fat-jets. We perform a substructure analysis to reduce the background and find that a doublycharged Higgs boson in the mass range 800–1120 GeV can be discovered during the 3 TeV run, with integrated luminosity L ∼ 95 fb−1 of data. For 380 GeV center of mass energy, we find that for the doublycharged Higgs boson in the range 160–172 GeV, a 5σ significance can be achieved with only integrated luminosity L ∼ 24 fb−1. Therefore, a light Higgs boson can be discovered immediately during the run of a future eþe− collider.

Citation

Agrawal, P., Mitra, M., Niyogi, S., Shil, S., & Spannowsky, M. (2018). Probing the type-II seesaw mechanism through the production of Higgs bosons at a lepton collider. Physical Review D, 98(1), Article 015024. https://doi.org/10.1103/physrevd.98.015024

Journal Article Type Article
Acceptance Date Mar 23, 2018
Online Publication Date Jul 16, 2018
Publication Date Jul 16, 2018
Deposit Date Jul 23, 2018
Publicly Available Date Jul 23, 2018
Journal Physical Review D
Print ISSN 2470-0010
Electronic ISSN 2470-0029
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 98
Issue 1
Article Number 015024
DOI https://doi.org/10.1103/physrevd.98.015024

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
Published by the American Physical Society under the terms of
the Creative Commons Attribution 4.0 International license.
Further distribution of this work must maintain attribution to
the author(s) and the published article’s title, journal citation,
and DOI. Funded by SCOAP3.





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