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Higgs mass from D-terms: a litmus test

Cheung, Clifford and Roberts, Hannes L. (2013) Higgs mass from D-terms: a litmus test. Journal of High Energy Physics, 2013 (12). Art. No. 18. ISSN 1029-8479. doi:10.1007/jhep12(2013)018.

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We explore supersymmetric theories in which the Higgs mass is boosted by the non-decoupling D-terms of an extended U(1)_X gauge symmetry, defined here to be a general linear combination of hypercharge, baryon number, and lepton number. Crucially, the gauge coupling, g_X , is bounded from below to accommodate the Higgs mass, while the quarks and leptons are required by gauge invariance to carry non-zero charge under U(1)_X . This induces an irreducible rate, σBR, for pp → X → ℓℓ relevant to existing and future resonance searches, and gives rise to higher dimension operators that are stringently constrained by precision electroweak measurements. Combined, these bounds define a maximally allowed region in the space of observables, (σBR, m_X), outside of which is excluded by naturalness and experimental limits. If natural supersymmetry utilizes non-decoupling D-terms, then the associated X boson can only be observed within this window, providing a model independent ‘litmus test’ for this broad class of scenarios at the LHC. Comparing limits, we find that current LHC results only exclude regions in parameter space which were already disfavored by precision electroweak data.

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Additional Information:© SISSA, Trieste, Italy 2013. JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0. Received: May 30, 2013. Revised: October 23, 2013. Accepted: November 18, 2013. Published: December 2, 2013. C.C. and H.R. are supported by the Director, Office of Science, Office of High Energy and Nuclear Physics, of the US Department of Energy under Contract DE-AC02-05CH11231, and by the National Science Foundation under grant PHY-0855653. C. C. would like to thank Josh Ruderman for useful comments.
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC02-05CH11231
Subject Keywords:Supersymmetry Phenomenology
Issue or Number:12
Record Number:CaltechAUTHORS:20190619-094157457
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Official Citation:Cheung, C. & Roberts, H.L. J. High Energ. Phys. (2013) 2013: 18.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96524
Deposited By: George Porter
Deposited On:20 Jun 2019 14:57
Last Modified:16 Nov 2021 17:21

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