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Title: Uncovering the high-scale Higgs singlet model

Abstract

The scalar singlet model extends the Standard Model with the addition of a new gauge singlet scalar. We re-examine the limits on the new scalar from oblique parameter fits and from a global fit to precision electroweak observables and present analytic expressions for our results. When the new scalar is much heavier than the weak scale, we map the model onto the dimension-six Standard Model effective field theory (SMEFT) and review the allowed parameter space from unitarity considerations and from the requirement that the electroweak minimum be stable. A global fit to precision electroweak data, along with LHC observables is used to constrain the parameters of the high scale singlet model and we determine the numerical effects of performing the matching at both tree level and 1-loop.

Authors:
ORCiD logo; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); European Union (EU)
OSTI Identifier:
1778473
Alternate Identifier(s):
OSTI ID: 1787811
Report Number(s):
BNL-221624-2021-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; 075016
Grant/Contract Number:  
SC0012704; SC0013607; G-2019-12504
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 103 Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Dawson, Sally, Giardino, Pier Paolo, and Homiller, Samuel. Uncovering the high-scale Higgs singlet model. United States: N. p., 2021. Web. doi:10.1103/PhysRevD.103.075016.
Dawson, Sally, Giardino, Pier Paolo, & Homiller, Samuel. Uncovering the high-scale Higgs singlet model. United States. https://doi.org/10.1103/PhysRevD.103.075016
Dawson, Sally, Giardino, Pier Paolo, and Homiller, Samuel. Mon . "Uncovering the high-scale Higgs singlet model". United States. https://doi.org/10.1103/PhysRevD.103.075016.
@article{osti_1778473,
title = {Uncovering the high-scale Higgs singlet model},
author = {Dawson, Sally and Giardino, Pier Paolo and Homiller, Samuel},
abstractNote = {The scalar singlet model extends the Standard Model with the addition of a new gauge singlet scalar. We re-examine the limits on the new scalar from oblique parameter fits and from a global fit to precision electroweak observables and present analytic expressions for our results. When the new scalar is much heavier than the weak scale, we map the model onto the dimension-six Standard Model effective field theory (SMEFT) and review the allowed parameter space from unitarity considerations and from the requirement that the electroweak minimum be stable. A global fit to precision electroweak data, along with LHC observables is used to constrain the parameters of the high scale singlet model and we determine the numerical effects of performing the matching at both tree level and 1-loop.},
doi = {10.1103/PhysRevD.103.075016},
journal = {Physical Review D},
number = 7,
volume = 103,
place = {United States},
year = {Mon Apr 19 00:00:00 EDT 2021},
month = {Mon Apr 19 00:00:00 EDT 2021}
}

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