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Title: Singlet model interference effects with high scale UV physics

One of the simplest extensions of the Standard Model (SM) is the addition of a scalar gauge singlet, S . If S is not forbidden by a symmetry from mixing with the Standard Model Higgs boson, the mixing will generate non-SM rates for Higgs production and decays. Generally, there could also be unknown high energy physics that generates additional effective low energy interactions. We show that interference effects between the scalar resonance of the singlet model and the effective field theory (EFT) operators can have significant effects in the Higgs sector. Here, we examine a non- Z 2 symmetric scalar singlet model and demonstrate that a fit to the 125 GeV Higgs boson couplings and to limits on high mass resonances, S , exhibit an interesting structure and possible large cancellations of effects between the resonance contribution and the new EFT interactions, that invalidate conclusions based on the renormalizable singlet model alone.
Authors:
 [1] ;  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Physics
  2. Univ. of Kansas, Lawrence, KS (United States). Dept. of Physics and Astronomy
Publication Date:
Report Number(s):
BNL-113694-2017-JA
Journal ID: ISSN 2470-0010; PRVDAQ; KA2401012; TRN: US1701025
Grant/Contract Number:
SC00112704; SC0012704
Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 95; 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; HEP; Higgs; SM; symmetry; scalar; EFT; GeV
OSTI Identifier:
1349566
Alternate Identifier(s):
OSTI ID: 1338644

Dawson, S., and Lewis, I. M.. Singlet model interference effects with high scale UV physics. United States: N. p., Web. doi:10.1103/PhysRevD.95.015004.
Dawson, S., & Lewis, I. M.. Singlet model interference effects with high scale UV physics. United States. doi:10.1103/PhysRevD.95.015004.
Dawson, S., and Lewis, I. M.. 2017. "Singlet model interference effects with high scale UV physics". United States. doi:10.1103/PhysRevD.95.015004. https://www.osti.gov/servlets/purl/1349566.
@article{osti_1349566,
title = {Singlet model interference effects with high scale UV physics},
author = {Dawson, S. and Lewis, I. M.},
abstractNote = {One of the simplest extensions of the Standard Model (SM) is the addition of a scalar gauge singlet, S . If S is not forbidden by a symmetry from mixing with the Standard Model Higgs boson, the mixing will generate non-SM rates for Higgs production and decays. Generally, there could also be unknown high energy physics that generates additional effective low energy interactions. We show that interference effects between the scalar resonance of the singlet model and the effective field theory (EFT) operators can have significant effects in the Higgs sector. Here, we examine a non- Z 2 symmetric scalar singlet model and demonstrate that a fit to the 125 GeV Higgs boson couplings and to limits on high mass resonances, S , exhibit an interesting structure and possible large cancellations of effects between the resonance contribution and the new EFT interactions, that invalidate conclusions based on the renormalizable singlet model alone.},
doi = {10.1103/PhysRevD.95.015004},
journal = {Physical Review D},
number = 1,
volume = 95,
place = {United States},
year = {2017},
month = {1}
}