Confronting the neutralino and chargino sector of the NMSSM to the multi-lepton searches at the LHC

Domingo, Florian; Kim, Jong Soo; Martin-Lozano, Victor; Martin-Ramiro, Pablo; de Austri, Roberto Ruiz

doi:10.48550/arxiv.1812.05186

Cited by 9 publications

(14 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, it may contain a crucial higgsino admixture thus making it a viable DM candidate. Implications of such an LSP in the context of various DM and collider experiments have recently been studied in the literature [15,16,51], though as parts of more general studies. Apart from the subtle role played by our proposed manoeuvring by allowing for M 1 µ eff , this brings in a fourth relatively light neutralino in the picture.…”

Section: The Ewino Sectormentioning

confidence: 99%

“…1 Clearly, presence of a light enough Higgs boson could lead to a sizable branching fraction for χ 0 2,3 → χ 0 1 h/a thus depleting the lepton-rich events. This can potentially weaken the limit on 'µ' or µ eff [15,16] thereby opening up the parameter space favored by 'naturalness'.…”

mentioning

confidence: 99%

“…• Ref. [16] is mainly concerned with the impact of recent multi-lepton searches at the LHC on the ewinos of the NMSSM in the presence of light singlet scalars, h 1 and a 1 .…”

mentioning

confidence: 99%

See 2 more Smart Citations

Revisiting singlino dark matter of the natural Z3-symmetric NMSSM in the light of LHC

Abdallah

Chatterjee

Datta

2019

J. High Energ. Phys.

View full text Add to dashboard Cite

Inspired by the fact that relatively small values of the effective higgsino mass parameter of the Z 3 -symmetric Next-to-Minimal Supersymmetric Standard Model (NMSSM) could render the scenario 'natural', we explore the plausibility of having relatively light neutralinos and charginos (the electroweakinos or the ewinos) in such a scenario with a rather light singlino-like Lightest Supersymmetric Particle (LSP), which is a Dark Matter (DM) candidate, and singlet-dominated scalar excitations. By first confirming the indications in the existing literature that finding simultaneous compliance with results from the Large Hadron Collider (LHC) and those from various DM experiments with such light states is, in general, a difficult ask, we proceed to demonstrate, with the help of a few representative benchmark points, how exactly and to what extent could such a highly motivated 'natural' setup with a singlino-like DM candidate still remains plausible.

show abstract

Section: The Ewino Sectormentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Revisiting singlino dark matter of the natural Z3-symmetric NMSSM in the light of LHC

Abdallah

Chatterjee

Datta

2019

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…The NMSSM [12,13]as any supersymmetric (SUSY) [14,15] extension of the SM-shields the mass of the SM-like Higgs against large radiative corrections from new physics at high-energy scales (e. g. the GUT or Planck scale), suggesting a technically natural answer to the 'Hierarchy Problem'. Other motivations are the resolution of the 'µ problem' [16] or the rich phenomenology of the Higgs or neutralino sectors, see e. g. [5,[17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34] for a few recent discussions. The NMSSM contains one pair of charged and four additional neutral Higgs bosons beyond the SM-like state, involving two new CP-even and two CP-odd degrees of freedom.…”

Section: Introductionmentioning

confidence: 99%

Electroweak corrections to the fermionic decays of heavy Higgs states

Domingo¹,

Paßehr

2019

Eur. Phys. J. C

Self Cite

View full text Add to dashboard Cite

Extensions of the Standard Model often come with additional, possibly electroweakly charged Higgs states, the prototypal example being the Two-Higgs-Doublet Model. While collider phenomenology does not exclude the possibility for some of these new scalar fields to be light, it is relatively natural to consider masses in the multi-TeV range, in which case the only remaining light Higgs boson automatically receives SM-like properties. The appearance of a hierarchy between the new-physics states and the electroweak scale then leads to sizable electroweak corrections, e. g. in the decays of the heavy Higgs bosons, which are dominated by effects of infrared type, namely Sudakov logarithms. Such radiative contributions obviously affect the two-body decays, but should also be paired with the radiation of electroweak gauge bosons (or lighter Higgs bosons) for a consistent picture at the one-loop order. Resummation of the leading terms is also relatively easy to achieve. We re-visit these questions in the specific case of the fermionic decays of heavy Higgs particles in the Next-to-Minimal Supersymmetric Standard Model, in particular pointing out the consequences of the three-body final states for the branching ratios of the heavy scalars. *

show abstract

“…Points with 0.67 < r < 1.5 are regarded as "potentially excluded" in view of the systematic and theoretical errors. For more details see[92].…”

mentioning

confidence: 99%

Phenomenology of scotogenic scalar dark matter

Ávila,

De Romeri,

Duarte

et al. 2019

Preprint

View full text Add to dashboard Cite

We reexamine the minimal Singlet + Triplet Scotogenic Model, where dark matter is the mediator of neutrino mass generation. We assume it to be a scalar WIMP, whose stability follows from the same Z2 symmetry that leads to the radiative origin of neutrino masses. The scheme is the minimal one that allows for solar and atmospheric mass scales to be generated. We perform a full numerical analysis of the signatures expected at dark matter as well as collider experiments. We identify parameter regions where dark matter predictions agree with theoretical and experimental constraints, such as neutrino oscillations, Higgs data, dark matter relic abundance and direct detection searches.We also present forecasts for near future direct and indirect detection experiments. These will further probe the parameter space. Finally, we explore collider signatures associated with the mono-jet channel at the LHC, highlighting the existence of a viable light dark matter mass range.

show abstract

Confronting the neutralino and chargino sector of the NMSSM to the multi-lepton searches at the LHC

Cited by 9 publications

References 0 publications

Revisiting singlino dark matter of the natural Z3-symmetric NMSSM in the light of LHC

Revisiting singlino dark matter of the natural Z3-symmetric NMSSM in the light of LHC

Electroweak corrections to the fermionic decays of heavy Higgs states

Phenomenology of scotogenic scalar dark matter

Contact Info

Product

Resources

About