Constraints on the trilinear Higgs self coupling from precision observables
Abstract
We present the constraints on the trilinear Higgs self coupling that arise from loop effects in the W boson mass and the effective sine predictions. Here, we compute the contributions to these precision observables of twoloop diagrams featuring an anomalous trilinear Higgs self coupling. We explicitly show that the same anomalous contributions are found if the analysis of m _{W} and sin ^{2}θ$$lep\atop{eff}$$ is performed in a theory in which the scalar potential in the Standard Model Lagrangian is modified by an (in)finite tower of (Φ ^{†}Φ) ^{n} terms with Φ the Higgs doublet. Lastly, we find that the bounds on the trilinear Higgs self coupling from precision observables are competitive with those coming from Higgs pair production.
 Authors:

 Sapienza Univ. of Rome Tre (Italy). Dept. of Mathematics and Physics; National Inst. of Nuclear Physics (INFN), Rome (Italy)
 Sapienza Univ. of Rome (Italy). La Sapienza, Dept. of Physics; National Inst. of Nuclear Physics (INFN), Rome (Italy)
 Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Physics
 Publication Date:
 Research Org.:
 Brookhaven National Lab. (BNL), Upton, NY (United States)
 Sponsoring Org.:
 USDOE Office of Science (SC), High Energy Physics (HEP) (SC25)
 OSTI Identifier:
 1361236
 Report Number(s):
 BNL1138092017JA
Journal ID: ISSN 10298479; KA2401012
 Grant/Contract Number:
 SC0012704
 Resource Type:
 Accepted Manuscript
 Journal Name:
 Journal of High Energy Physics (Online)
 Additional Journal Information:
 Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2017; Journal Issue: 4; Journal ID: ISSN 10298479
 Publisher:
 Springer Berlin
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; Higgs Physics
Citation Formats
Degrassi, G., Fedele, M., and Giardino, P. P. Constraints on the trilinear Higgs self coupling from precision observables. United States: N. p., 2017.
Web. doi:10.1007/JHEP04(2017)155.
Degrassi, G., Fedele, M., & Giardino, P. P. Constraints on the trilinear Higgs self coupling from precision observables. United States. doi:10.1007/JHEP04(2017)155.
Degrassi, G., Fedele, M., and Giardino, P. P. Thu .
"Constraints on the trilinear Higgs self coupling from precision observables". United States. doi:10.1007/JHEP04(2017)155. https://www.osti.gov/servlets/purl/1361236.
@article{osti_1361236,
title = {Constraints on the trilinear Higgs self coupling from precision observables},
author = {Degrassi, G. and Fedele, M. and Giardino, P. P.},
abstractNote = {We present the constraints on the trilinear Higgs self coupling that arise from loop effects in the W boson mass and the effective sine predictions. Here, we compute the contributions to these precision observables of twoloop diagrams featuring an anomalous trilinear Higgs self coupling. We explicitly show that the same anomalous contributions are found if the analysis of mW and sin2θ$lep\atop{eff}$ is performed in a theory in which the scalar potential in the Standard Model Lagrangian is modified by an (in)finite tower of (Φ†Φ)n terms with Φ the Higgs doublet. Lastly, we find that the bounds on the trilinear Higgs self coupling from precision observables are competitive with those coming from Higgs pair production.},
doi = {10.1007/JHEP04(2017)155},
journal = {Journal of High Energy Physics (Online)},
number = 4,
volume = 2017,
place = {United States},
year = {2017},
month = {4}
}
Web of Science
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