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Two Higgs bosons near 125 GeV in the complex NMSSM and the LHC Run I data

Moretti, Stefano and Munir, Shoaib (2015) Two Higgs bosons near 125 GeV in the complex NMSSM and the LHC Run I data. Advances in High Energy Physics, 2015, [509847].

Record type: Article

Abstract

We analyse the impact of explicit CP-violation in the Higgs sector of the Next-to-Minimal Supersymmetric Standard Model (NMSSM) on its consistency with the Higgs boson data from the Large Hadron Collider (LHC). Through detailed scans of the parameter space of the complex NMSSM for certain fixed values of one of its CP-violating (CPV) phases, we obtain a large number of points corresponding to five phenomenologically relevant scenarios containing $\sim 125$ GeV Higgs boson(s). We focus, in particular, on the scenarios where the visible peaks in the experimental samples can actually be explained by two nearly mass-degenerate neutral Higgs boson states. We find that some points corresponding to these scenarios give an overall slightly improved fit to the data, more so for non-zero values of the CPV phase, compared to the scenarios containing a single Higgs boson near 125 GeV.

Accepted/In Press date: 30 July 2015
Published date: 1 October 2015
Additional Information: 22 pages, 3 figures. Substantially revised text, improved results and figures, overall conclusions unchanged. Some added references. Version to appear in the special issue "Supersymmetry beyond the (N)MSSM" of AHEP
Keywords: hep-ph
Organisations: Theory Group

Identifiers

Local EPrints ID: 411848
URI: http://eprints.soton.ac.uk/id/eprint/411848
PURE UUID: 97203514-89ed-4dd9-97c4-1e62b816ae7a

Catalogue record

Date deposited: 27 Jun 2017 16:31

Contributors

Author: Stefano Moretti
Author: Shoaib Munir

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