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Exotic Higgs boson decays and the electroweak phase transition

Kozaczuk, Jonathan and Ramsey-Musolf, Michael J. and Shelton, Jessie (2020) Exotic Higgs boson decays and the electroweak phase transition. Physical Review D, 101 (11). Art. No. 1115035. ISSN 2470-0010. doi:10.1103/PhysRevD.101.115035.

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Light new physics weakly coupled to the Higgs can induce a strong first-order electroweak phase transition (EWPT). Here, we argue that scenarios in which the EWPT is driven first-order by a light scalar with mass between ∼10 GeV − m_h/2 and small mixing with the Higgs will be conclusively probed by the high-luminosity LHC and future Higgs factories. Our arguments are based on analytic and numerical studies of the finite-temperature effective potential and provide a well-motivated target for exotic Higgs decay searches at the LHC and future lepton colliders.

Item Type:Article
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URLURL TypeDescription
Kozaczuk, Jonathan0000-0002-1801-7965
Ramsey-Musolf, Michael J.0000-0001-8110-2479
Shelton, Jessie0000-0002-0959-6360
Additional Information:© 2020 The Author(s). 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. (Received 27 January 2020; accepted 11 May 2020; published 25 June 2020) We thank Marcela Carena, Zhen Liu, and Yikun Wang for useful discussions of their work in a related scenario. We also thank Aqil Sajjad for collaboration in the early stages of this project. The work of J. K. was supported by Department of Energy (DOE) Grant No. DE-SC0019195 and National Science Foundation (NSF) Grant No. PHY-1719642. M. J. R. M. was supported in part under U.S. Department of Energy Contract No. DE-SC0011095. The work of J. S. is supported by DOE Early Career Grant No. DE-SC0017840. The authors performed this work in part at the Aspen Center for Physics, which is supported by NSF Grant No. PHY-1607611.
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0019195
Department of Energy (DOE)DE-SC0011095
Department of Energy (DOE)DE-SC0017840
Issue or Number:11
Record Number:CaltechAUTHORS:20200625-094628686
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104039
Deposited By: George Porter
Deposited On:25 Jun 2020 17:25
Last Modified:16 Nov 2021 18:27

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