Abstract
We propose six new benchmark scenarios for Higgs boson searches in the Minimal Supersymmetric Standard Model. Our calculations follow the recommendations of the LHC Higgs Cross Section Working Group, and benefit from recent developments in the predictions for the Higgs-boson masses and mixing. All of the proposed scenarios are compatible with the most recent results from Run 2 of the LHC. In particular, they feature a scalar with mass and couplings compatible with those of the observed Higgs boson, and a significant portion of their parameter space is allowed by the limits from the searches for SUSY particles and additional Higgs bosons. We define a scenario where all SUSY particles are relatively heavy, and two scenarios with light colorless SUSY particles (charginos, neutralinos and, in one case, staus). In addition, we present two scenarios featuring alignment without decoupling, realized with either the lighter or the heavier scalar being SM-like, and a scenario with mathcal {CP} violation.
Highlights
In the six years since the discovery of a Higgs boson at the LHC [1,2], its mass has been measured with a few-per-mil accuracy, M obs H = 125.09 ± 0.24 GeV [3]
We propose six new benchmark scenarios for Higgs boson searches in the Minimal Supersymmetric Standard Model
CP is conserved in the Higgs sector of the Minimal Supersymmetric Standard Model (MSSM), and the spectrum of physical Higgs bosons consists of two neutral CP-even scalars, of which we denote the lighter as h and the heavier as H, one CP-odd scalar, A, and a charged-scalar pair, H ±
Summary
In the six years since the discovery of a Higgs boson at the LHC [1,2], its mass has been measured with a few-per-mil accuracy, M obs H. A reassessment of the benchmark scenarios for the MSSM with complex parameters seems well motivated, in view of tightening constraints from electric dipole moments (EDMs) [50,51], as well as of recent progress in the calculation of the Higgs masses (allowing for complex phases in the dominant twoloop corrections [52,53,54,55,56,57] and, approximately, in the large-log resummation [28]), in the prediction of the cross sections for Higgs production [58] and in the incorporation of interference effects among admixed Higgs bosons [59,60,61] Another type of MSSM benchmark scenarios that was studied by the LHC-HXSWG [62] is characterized by very low values of tan β, and requires very heavy SUSY particles. The rest of the paper is organized as follows: in Sect. 2 we describe in detail the theoretical ingredients of our calculations; in Sect. 3 we define our six scenarios and discuss the bounds on their parameter space; Sect. 4 contains our conclusions
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