Supersymmetric models in light of improved Higgs mass calculations

E. Bagnaschi, H. Bahl, J. Ellis, J. L. Evans, T. Hahn, S. Heinemeyer, W. Hollik, K. A. Olive, S. Paßehr, H. Rzehak, I. V. Sobolev, G. Weiglein, J. Zheng

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13 Scopus citations

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 q~ (for squarks), mg~ (for gluinos) and m χ~ (for electroweakinos). Furthermore, it contains an improved treatment of the DR ¯ 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 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, 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 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.

Original languageEnglish (US)
Article number149
JournalEuropean Physical Journal C
Volume79
Issue number2
DOIs
StatePublished - Feb 1 2019

Bibliographical note

Funding Information:
Acknowledgements The work of JLE was supported in part by the United Kingdom STFC Grant ST/P000258/1, and in part by the Estonian Research Council via a Mobilitas Pluss Grant. The work of SH was supported in part by the MEINCOP (Spain) under contract FPA2016-78022-P, in part by the Spanish Agencia Estatal de Investigación (AEI), in part by the EU Fondo Europeo de Desarrollo Regional (FEDER) through the project FPA2016-78645-P, in part by the “Spanish Red Consolider MultiDark” FPA2017-90566-REDC, and in part by the AEI through the Grant IFT Centro de Excelencia Severo Ochoa SEV-2016-0597. The work of KAO was supported in part by DOE Grant DESC0011842 at the University of Minnesota. The work of SP was supported by the ANR Grant “HiggsAutomator” (ANR-15-CE31-0002). The work of HR was partially funded by the Danish National Research Foundation, Grant number DNRF90. The work of JZ was supported by KAKENHI Grant Number JP26104009.

Publisher Copyright:
© 2019, The Author(s).

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