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Title: Singlet-catalyzed electroweak phase transitions in the 100 TeV frontier

Abstract

We study the prospects for probing a gauge singlet scalar-driven strong first-order electroweak phase transition with a future proton-proton collider in the 100 TeV range. Singlet-Higgs mixing enables resonantly enhanced di-Higgs production, potentially aiding discovery prospects. We perform Monte Carlo scans of the parameter space to identify regions associated with a strong first-order electroweak phase transition, analyze the corresponding di-Higgs signal, and select a set of benchmark points that span the range of di-Higgs signal strengths. For the b$$\bar{b}$$γγ and 4τ final states, we investigate discovery prospects for each benchmark point for the high-luminosity phase of the Large Hadron Collider and for a future pp collider with s=50, 100, or 200 TeV. We find that any of these future collider scenarios could significantly extend the reach beyond that of the high-luminosity LHC, and that with s=100 TeV (200 TeV) and 30 ab -1, the full region of parameter space favorable to strong first-order electroweak phase transitions is almost fully (fully) discoverable.

Authors:
 [1];  [2];  [3];  [2]
  1. Duke Univ., Durham, NC (United States)
  2. Univ. of Massachusetts, Amherst, MA (United States)
  3. Univ. of Sussex, Brighton (United Kingdom)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1354878
Alternate Identifier(s):
OSTI ID: 1328628
Report Number(s):
ACFI-T16-12; FERMILAB-PUB-16-670; arXiv:1605.06123
Journal ID: ISSN 2470-0010; 1463286
Grant/Contract Number:  
AC02-07CH11359; SC0011095
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 94; Journal Issue: 3; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Kotwal, Ashutosh V., Ramsey-Musolf, Michael J., No, Jose Miguel, and Winslow, Peter. Singlet-catalyzed electroweak phase transitions in the 100 TeV frontier. United States: N. p., 2016. Web. doi:10.1103/PhysRevD.94.035022.
Kotwal, Ashutosh V., Ramsey-Musolf, Michael J., No, Jose Miguel, & Winslow, Peter. Singlet-catalyzed electroweak phase transitions in the 100 TeV frontier. United States. doi:10.1103/PhysRevD.94.035022.
Kotwal, Ashutosh V., Ramsey-Musolf, Michael J., No, Jose Miguel, and Winslow, Peter. Tue . "Singlet-catalyzed electroweak phase transitions in the 100 TeV frontier". United States. doi:10.1103/PhysRevD.94.035022. https://www.osti.gov/servlets/purl/1354878.
@article{osti_1354878,
title = {Singlet-catalyzed electroweak phase transitions in the 100 TeV frontier},
author = {Kotwal, Ashutosh V. and Ramsey-Musolf, Michael J. and No, Jose Miguel and Winslow, Peter},
abstractNote = {We study the prospects for probing a gauge singlet scalar-driven strong first-order electroweak phase transition with a future proton-proton collider in the 100 TeV range. Singlet-Higgs mixing enables resonantly enhanced di-Higgs production, potentially aiding discovery prospects. We perform Monte Carlo scans of the parameter space to identify regions associated with a strong first-order electroweak phase transition, analyze the corresponding di-Higgs signal, and select a set of benchmark points that span the range of di-Higgs signal strengths. For the b$\bar{b}$γγ and 4τ final states, we investigate discovery prospects for each benchmark point for the high-luminosity phase of the Large Hadron Collider and for a future pp collider with s=50, 100, or 200 TeV. We find that any of these future collider scenarios could significantly extend the reach beyond that of the high-luminosity LHC, and that with s=100 TeV (200 TeV) and 30 ab-1, the full region of parameter space favorable to strong first-order electroweak phase transitions is almost fully (fully) discoverable.},
doi = {10.1103/PhysRevD.94.035022},
journal = {Physical Review D},
number = 3,
volume = 94,
place = {United States},
year = {Tue Aug 23 00:00:00 EDT 2016},
month = {Tue Aug 23 00:00:00 EDT 2016}
}

Journal Article:
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