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Title: Standard model EFT and extended scalar sectors

One of the simplest extensions of the Standard Model is the inclusion of an additional scalar multiplet, and we consider scalars in the S U ( 2 ) L singlet, triplet, and quartet representations. Here, we examine models with heavy neutral scalars, m H ~1 – 2 TeV , and the matching of the UV complete theories to the low energy effective field theory. We also demonstrate the agreement of the kinematic distributions obtained in the singlet models for the gluon fusion of a Higgs pair with the predictions of the effective field theory. Finally, the restrictions on the extended scalar sectors due to unitarity and precision electroweak measurements are summarized and lead to highly restricted regions of viable parameter space for the triplet and quartet models.
Authors:
 [1] ;  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Physics
Publication Date:
Report Number(s):
BNL-114192-2017-JA
Journal ID: ISSN 2470-0010; PRVDAQ; KA2401012
Grant/Contract Number:
SC00112704; SC0012704
Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 96; Journal Issue: 1; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; standard model; SM; scalar; sectors; HET; Higgs; kinematic
OSTI Identifier:
1377027
Alternate Identifier(s):
OSTI ID: 1373436

Dawson, Sally, and Murphy, Christopher W. Standard model EFT and extended scalar sectors. United States: N. p., Web. doi:10.1103/PhysRevD.96.015041.
Dawson, Sally, & Murphy, Christopher W. Standard model EFT and extended scalar sectors. United States. doi:10.1103/PhysRevD.96.015041.
Dawson, Sally, and Murphy, Christopher W. 2017. "Standard model EFT and extended scalar sectors". United States. doi:10.1103/PhysRevD.96.015041. https://www.osti.gov/servlets/purl/1377027.
@article{osti_1377027,
title = {Standard model EFT and extended scalar sectors},
author = {Dawson, Sally and Murphy, Christopher W.},
abstractNote = {One of the simplest extensions of the Standard Model is the inclusion of an additional scalar multiplet, and we consider scalars in the S U ( 2 ) L singlet, triplet, and quartet representations. Here, we examine models with heavy neutral scalars, m H ~1 – 2 TeV , and the matching of the UV complete theories to the low energy effective field theory. We also demonstrate the agreement of the kinematic distributions obtained in the singlet models for the gluon fusion of a Higgs pair with the predictions of the effective field theory. Finally, the restrictions on the extended scalar sectors due to unitarity and precision electroweak measurements are summarized and lead to highly restricted regions of viable parameter space for the triplet and quartet models.},
doi = {10.1103/PhysRevD.96.015041},
journal = {Physical Review D},
number = 1,
volume = 96,
place = {United States},
year = {2017},
month = {7}
}