https://doi.org/10.1140/epjc/s10052-014-2809-3
Regular Article - Theoretical Physics
Implications of improved Higgs mass calculations for supersymmetric models
1
High Energy Physics Group, Blackett Lab., Imperial College, Prince Consort Road, London, SW7 2AZ, UK
2
Theory Group, SLAC National Accelerator Lab., 2575 Sand Hill Road, Menlo Park, CA, 94025-7090, USA
3
Theoretical Particle Physics and Cosmology Group, Department of Physics, King’s College London, London, WC2R 2LS, UK
4
Theory Division, CERN, 1211 , Geneva 23, Switzerland
5
Max-Planck-Institut für Physik, Föhringer Ring 6, 80805 , Munich, Germany
6
Instituto de Física de Cantabria (CSIC-UC), 39005 , Santander, Spain
7
William I. Fine Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, MN, 55455, USA
8
Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, 79104 , Freiburg, Germany
9
DESY, Notkestrasse 85, 22607 , Hamburg, Germany
* e-mail: Sven.Heinemeyer@cern.ch
Received:
9
January
2014
Accepted:
4
March
2014
Published online:
18
March
2014
We discuss the allowed parameter spaces of supersymmetric scenarios in light of improved Higgs mass predictions provided by FeynHiggs 2.10.0. The Higgs mass predictions combine Feynman-diagrammatic results with a resummation of leading and subleading logarithmic corrections from the stop/top sector, which yield a significant improvement in the region of large stop masses. Scans in the pMSSM parameter space show that, for given values of the soft supersymmetry-breaking parameters, the new logarithmic contributions beyond the two-loop order implemented in FeynHiggs tend to give larger values of the light CP-even Higgs mass, 
, in the region of large stop masses than previous predictions that were based on a fixed-order Feynman-diagrammatic result, though the differences are generally consistent with the previous estimates of theoretical uncertainties. We re-analyse the parameter spaces of the CMSSM, NUHM1 and NUHM2, taking into account also the constraints from CMS and LHCb measurements of 
and ATLAS searches for 
events using 20/fb of LHC data at 8 TeV. Within the CMSSM, the Higgs mass constraint disfavours 
, though not in the NUHM1 or NUHM2.
© SIF and Springer-Verlag Berlin Heidelberg, 2014
