Neutralino mass bounds in the Next-To-Minimal Supersymmetric Standard Model

Franke, Fabian; Fraas, H.; Bartl, A.

doi:10.1016/0370-2693(94)90553-3

Cited by 29 publications

(31 citation statements)

References 27 publications

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“…The neutralino production and decay properties in the NMSSM with the additional singlino state depend crucially on the singlino mass with respect to the MSSM neutralino masses [8]. If the singlino is much heavier than the other states, it will be very rarely produced and so practically unobservable.…”

Section: Neutralino Production and Decaysmentioning

confidence: 99%

The neutralino sector of the next-to-minimal supersymmetric Standard Model

2005

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The Next-to-Minimal Supersymmetric Standard Model (NMSSM) includes a Higgs iso-singlet superfield in addition to the two Higgs doublet superfields of the minimal extension. If the Higgs fields remain weakly coupled up to the GUT scale, as naturally motivated by the concept of supersymmetry, the mixing between singlet and doublet fields is small and can be treated perturbatively. The mass spectrum and mixing matrix of the neutralino sector can be analyzed analytically and the structure of this 5-state system is under good theoretical control. We also determine decay modes and production channels in sfermion cascade decays to these particles at the LHC and pair production in e + e − colliders.

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Section: Neutralino Production and Decaysmentioning

confidence: 99%

The neutralino sector of the next-to-minimal supersymmetric Standard Model

2005

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“…This is most easily realized in the minimal extension of the MSSM, where the superpartner of a singlet Higgs is contained in the neutralino sector. A recent analysis shows that even a massless LSP is still an allowed possibility in this model [17]. Another extension which has a light LSP is to incorporate the Peccei-Quinn symmetry.…”

Section: From This It Follows Thatmentioning

confidence: 99%

On the solution to the polonyi problem with O(10 TeV) gravitino mass in supergravity

1995

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We study the solution to the Polonyi problem where the Polonyi field weighs as O(10TeV) and decays just before the primordial nucleosynthesis. It is shown that in spite of a large entropy production by the Polonyi field decay, one can naturally explain the present value of the baryon-to-entropy ratio, n B /s ∼ (10 −10 − 10 −11 ) if the Affleck-Dine mechanism for baryogenesis works. It is pointed out, however, that there is another cosmological problem related to the abundance of the lightest superparticles produced by the Polonyi decay. † Fellow of the Japan Society for the Promotion of Science.

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“…The above arguments make an intensive study of the NMSSM phenomenology very desirable. Previously the Higgs and neutralino sectors of the NMSSM were carefully studied in [10]- [15]. The calculation of the LSP relic abundance in the NMSSM was performed for the first time in [16] and recently in [17].…”

Section: Introductionmentioning

confidence: 99%

Direct dark matter detection in the next-to-minimal supersymmetric standard model

Bednyakov

Klapdor‐Kleingrothaus

1998

Phys. Rev. D

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Direct dark matter detection is considered in the Next-to-Minimal Supersymmetric Standard Model (NMSSM). The effective neutralino-quark Lagrangian is obtained and event rates are calculated for the 73 Ge isotope. Accelerator and cosmological constraints on the NMSSM parameter space are included. By means of scanning the parameter space at the Fermi scale we show that the lightest neutralino could be detected in dark matter experiments with sizable event rate. PACS number(s): 14.80. Ly, 95.35+d, 98.80Cq

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Neutralino mass bounds in the Next-To-Minimal Supersymmetric Standard Model

Cited by 29 publications

References 27 publications

The neutralino sector of the next-to-minimal supersymmetric Standard Model

The neutralino sector of the next-to-minimal supersymmetric Standard Model

On the solution to the polonyi problem with O(10 TeV) gravitino mass in supergravity

Direct dark matter detection in the next-to-minimal supersymmetric standard model

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