Supersymmetry

Fayet, Pierre; Ferrara, S.

doi:10.1016/0370-1573(77)90066-7

Cited by 921 publications

(419 citation statements)

References 125 publications

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“…The original motivation for this singlet extension rests with the 'µ-problem' of the MSSM [19], which can be solved elegantly if this µ-term is generated dynamically, via a singlet vacuum expectation value (v.e.v.) [20][21][22]. Correspondingly, the Z 3 -conserving version of the NMSSM -allowing only cubic terms in the superpotential -is the most studied form of this model, while more general singlet couplings can be justified by higher-energy considerations -see e.g.…”

Section: Jhep06(2015)052mentioning

confidence: 99%

A new tool for the study of the CP-violating NMSSM

Domingo

2015

J. High Energ. Phys.

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Supersymmetric extensions of the Standard Model open up the possibility for new types of CP-violation. We consider the case of the Next-to-Minimal Supersymmetric Standard Model where, beyond the phases from the soft lagrangian, CP-violation could enter the Higgs sector directly at tree-level through complex parameters in the superpotential. We develop a series of Fortran subroutines, cast within the public tool NMSSMTools and allowing for a phenomenological analysis of the CP-violating NMSSM. This new tool performs the computation of the masses and couplings of the various new physics states in this model: leading corrections to the sparticle masses are included; the precision for the Higgs masses and couplings reaches the full one-loop and leading two-loop order. The two-body Higgs and top decays are also attended. We use the public tools HiggsBounds and HiggsSignals to test the Higgs sector. Additional subroutines check the viability of the sparticle spectrum in view of LEP-limits and constrain the phases of the model via a confrontation to the experimentally measured Electric Dipole Moments. These tools will be made publicly available in the near future. In this paper, we detail the workings of our code and illustrate its use via a comparison with existing results. We also consider some consequences of CP-violation for the NMSSM Higgs sector.

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Section: Jhep06(2015)052mentioning

confidence: 99%

A new tool for the study of the CP-violating NMSSM

Domingo

2015

J. High Energ. Phys.

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“…In such a table we display also the charges with respect to so named R-symmetry [15] that is the Table 1: Quantum Number assignments in the N = 2 sigma model phase symmetry defined by rotating the supersymmetry parameters in the following way:…”

Section: Gamma Matricesmentioning

confidence: 99%

Hyperinstantons, the Beltrami equation, and triholomorphic maps

2015

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We consider the Beltrami equation for hydrodynamics and we show that its solutions can be viewed as instanton solutions of a more general system of equations. The latter are the equations of motion for an N = 2 sigma model on 4-dimensional worldvolume (which is taken locally HyperKähler) with a 4-dimensional HyperKähler target space. By means of the 4D twisting procedure originally introduced by Witten for gauge theories and later generalized to 4D sigmamodels by Anselmi and Fré, we show that the equations of motion describe triholomophic maps between the worldvolume and the target space. Therefore, the classification of the solutions to the 3-dimensional Beltrami equation can be performed by counting the triholomorphic maps. The counting is easily obtained by using several discrete symmetries. Finally, the similarity with holomorphic maps for N = 2 sigma on Calabi-Yau space prompts us to reformulate the problem of the enumeration of triholomorphic maps in terms of a topological sigma model.

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“…Scalar partners of right-and left-handed fermions are predicted by supersymmetric models and, in particular, by the minimal supersymmetric extension of the standard model (MSSM) [3]. They could be produced pairwise via e + e − annihilation into Z 0 /γ.…”

Section: Introductionmentioning

confidence: 99%

Search for supersymmetric partners of top and bottom quarks at GeV

Abreu¹,

Adam²,

Adye³

et al. 2000

Physics Letters B

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Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are observed in these data sets, which are taken at centre-of-mass energies of 183 GeV and 189 GeV and correspond to integrated luminosities of 54 pb −1 and 158 pb −1 . These results are used in combination with those obtained by DELPHI at lower centre-of-mass energies to exclude regions in the squark-neutralino mass plane at 95% confidence level.

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Supersymmetry

Cited by 921 publications

References 125 publications

A new tool for the study of the CP-violating NMSSM

A new tool for the study of the CP-violating NMSSM

Hyperinstantons, the Beltrami equation, and triholomorphic maps

Search for supersymmetric partners of top and bottom quarks at GeV

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