Publication
Title
The CMSSM and NUHM1 after LHC Run 1
Author
Abstract
We analyze the impact of data from the full Run 1 of the LHC at 7 and 8 TeV on the CMSSM with and and the NUHM1 with , incorporating the constraints imposed by other experiments such as precision electroweak measurements, flavour measurements, the cosmological density of cold dark matter and the direct search for the scattering of dark matter particles in the LUX experiment. We use the following results from the LHC experiments: ATLAS searches for events with accompanied by jets with the full 7 and 8 TeV data, the ATLAS and CMS measurements of the mass of the Higgs boson, the CMS searches for heavy neutral Higgs bosons and a combination of the LHCb and CMS measurements of and . Our results are based on samplings of the parameter spaces of the CMSSM for both and and of the NUHM1 for with 6.8, 6.2 and 1.6 points, respectively, obtained using the MultiNest tool. The impact of the Higgs-mass constraint is assessed using FeynHiggs 2.10.0, which provides an improved prediction for the masses of the MSSM Higgs bosons in the region of heavy squark masses. It yields in general larger values of than previous versions of FeynHiggs, reducing the pressure on the CMSSM and NUHM1. We find that the global functions for the supersymmetric models vary slowly over most of the parameter spaces allowed by the Higgs-mass and the searches, with best-fit values that are comparable to the for the best Standard Model fit. We provide 95 % CL lower limits on the masses of various sparticles and assess the prospects for observing them during Run 2 of the LHC.
Language
English
Source (journal)
European physical journal : C : particles and fields. - Berlin
Publication
Berlin : 2014
ISSN
1434-6044
Volume/pages
74:6(2014), 22 p.
Article Reference
2922
ISI
000337639700001
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 28.08.2014
Last edited 04.10.2017
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