Supersymmetric Models in Light of Improved Higgs Mass Calculations

Article
Report number	arXiv:1810.10905 ; CERN-TH/2018-185 ; CERN-TH-2018-185 ; DESY-18-182 ; PSI-PR-18-11 ; UMN-TH-3801/18 ; FTPI-MINN-18/18 ; UMN-TH-3801/18, FTPI-MINN-18/18 ; IFT-UAM/CSIC-18-081 ; KIAS-P18095 ; KCL-PH-TH/2018-41 ; MPP-2018-239 ; KCL-PH-TH/2018-41, MPP-2018-239 ; CP3-Origins-2018-039 DNRF90
Title	Supersymmetric Models in Light of Improved Higgs Mass Calculations
Author(s)	Bagnaschi, E. (PSI, Villigen) ; Bahl, H. (Munich, Max Planck Inst.) ; Ellis, J. (King's Coll. London ; NICPB, Tallinn ; CERN) ; Evans, J. (Korea Inst. Advanced Study, Seoul) ; Hahn, T. (Munich, Max Planck Inst.) ; Heinemeyer, S. (Madrid, IFT ; Cantabria Inst. of Phys.) ; Hollik, W. (Munich, Max Planck Inst.) ; Olive, K.A. (Minnesota U., Theor. Phys. Inst.) ; Paßehr, S. (Paris, LPTHE) ; Rzehak, H. (Southern Denmark U., CP3-Origins) ; Sobolev, I.V. (DESY) ; Weiglein, G. (DESY) ; Zheng, J. (Tokyo U.)
Publication	2019-02-19
Imprint	2018-10-25
Number of pages	35
Note	35 pages, 12 figues
In:	Eur. Phys. J. C 79 (2019) 149
DOI	10.1140/epjc/s10052-019-6658-y
Subject category	hep-ph ; Particle Physics - Phenomenology
Abstract	We discuss the parameter spaces of supersymmetry (SUSY) scenarios taking into account the improved Higgs-mass prediction provided by FeynHiggs 2.14.1. Among other improvements, this prediction incorporates three-loop renormalization-group effects and two-loop threshold corrections, and can accommodate three separate mass scales: m_{\tilde q} (for squarks), m_{\tilde g} (for gluinos) and m_{\tilde\chi} (for electroweakinos). Furthermore, it contains an improved treatment of the DRbar scalar top parameters avoiding problems with the conversion to on-shell parameters, that yields more accurate results for large SUSY-breaking scales. We first consider the CMSSM, in which the soft SUSY-breaking parameters m_0 and m_{1/2} are universal at the GUT scale, and then sub-GUT models in which universality is imposed at some lower scale. In both cases, we consider the constraints from the Higgs-boson mass M_h in the bulk of the (m_0, m_{1/2}) plane and also along stop coannihilation strips where sparticle masses may extend into the multi-TeV range. We then consider the minimal anomaly-mediated SUSY-breaking (mAMSB) scenario, in which large sparticle masses are generic. In all these scenarios the substantial improvements between the calculations of M_h in FeynHiggs 2.14.1 and FeynHiggs 2.10.0, which was used in an earlier study, change significantly the preferred portions of the models' parameter spaces. Finally, we consider the pMSSM11, in which sparticle masses may be significantly smaller and we find only small changes in the preferred regions of parameter space.
Copyright/License	publication: (License: CC-BY-4.0) preprint: (License: arXiv nonexclusive-distrib 1.0)