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Title: Electroweak phase transition in the real triplet extension of the SM: Dimensional reduction

Abstract

In a series of two papers, we make a comparative analysis of the performance of conventional perturbation theory to analyze electroweak phase transition in the real triplet extension of the Standard Model (ΣSM). In Part I (this paper), we derive and present the high–T dimensionally reduced effective theory that is suitable for numerical simulation on the lattice. In Part II, we will present results of the numerical simulation and benchmark the performance of conventional perturbation theory. Under the assumption that Σ is heavy, the resulting effective theory takes the same form as that derived from the minimal Standard Model. By recasting the existing nonperturbative results, we map out the phase diagram of the model in the plane of triplet mass MΣ and Higgs portal coupling a2. Contrary to conventional perturbation theory, we find regions of parameter space in which the phase transition may be first order, second order, or crossover. We comment on prospects for prospective future colliders to probe the region where the electroweak phase transition is first order by a precise measurement of the h → γγ partial width.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Univ. of Massachusetts, Amherst, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1547957
Alternate Identifier(s):
OSTI ID: 1611592
Grant/Contract Number:  
SC0011095
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 100 Journal Issue: 3; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Astronomy & Astrophysics; Physics; Baryogenesis & leptogenesis; Extensions of Higgs sector

Citation Formats

Niemi, Lauri, Patel, Hiren H., Ramsey-Musolf, Michael J., Tenkanen, Tuomas V. I., and Weir, David J. Electroweak phase transition in the real triplet extension of the SM: Dimensional reduction. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.100.035002.
Niemi, Lauri, Patel, Hiren H., Ramsey-Musolf, Michael J., Tenkanen, Tuomas V. I., & Weir, David J. Electroweak phase transition in the real triplet extension of the SM: Dimensional reduction. United States. https://doi.org/10.1103/PhysRevD.100.035002
Niemi, Lauri, Patel, Hiren H., Ramsey-Musolf, Michael J., Tenkanen, Tuomas V. I., and Weir, David J. Mon . "Electroweak phase transition in the real triplet extension of the SM: Dimensional reduction". United States. https://doi.org/10.1103/PhysRevD.100.035002.
@article{osti_1547957,
title = {Electroweak phase transition in the real triplet extension of the SM: Dimensional reduction},
author = {Niemi, Lauri and Patel, Hiren H. and Ramsey-Musolf, Michael J. and Tenkanen, Tuomas V. I. and Weir, David J.},
abstractNote = {In a series of two papers, we make a comparative analysis of the performance of conventional perturbation theory to analyze electroweak phase transition in the real triplet extension of the Standard Model (ΣSM). In Part I (this paper), we derive and present the high–T dimensionally reduced effective theory that is suitable for numerical simulation on the lattice. In Part II, we will present results of the numerical simulation and benchmark the performance of conventional perturbation theory. Under the assumption that Σ is heavy, the resulting effective theory takes the same form as that derived from the minimal Standard Model. By recasting the existing nonperturbative results, we map out the phase diagram of the model in the plane of triplet mass MΣ and Higgs portal coupling a2. Contrary to conventional perturbation theory, we find regions of parameter space in which the phase transition may be first order, second order, or crossover. We comment on prospects for prospective future colliders to probe the region where the electroweak phase transition is first order by a precise measurement of the h → γγ partial width.},
doi = {10.1103/PhysRevD.100.035002},
journal = {Physical Review D},
number = 3,
volume = 100,
place = {United States},
year = {2019},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.100.035002

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Cited by: 4 works
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