Singlino-dominated dark matter in $Z_3$-NMSSM

Zhou, Haijing; Cao, Junjie; Lian, Jingwei; Zhang, Di

doi:10.48550/arxiv.2102.05309

Cited by 4 publications

(10 citation statements)

References 86 publications

(155 reference statements)

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“…Considering the dilemma of the Z 3 -NMSSM in DM physics, we will scrutinize the DM physics of the GNMSSM. Our results are quite different from previous studies on the Singlino-dominated DM, which worked in the framework of the Z 3 -NMSSM [9,10,13,14,[17][18][19][20][21][22][23].…”

Section: Introductioncontrasting

confidence: 99%

“…Finally, we compare the experimentally favored parameter space of the µNMSSM with that of the Z 3 -NMSSM. The latter was obtained in our recent work [14]. We find them quite different.…”

Section: Posterior Probability Densitycontrasting

confidence: 41%

“…3 χ± 1 (j), χ± 1 χ∓ 1 (j), Pythia-8.2 [82] for parton fragmentation and hadronization, Delphes-3.4.2 [83] for fast simulation of the performance of the ATLAS detector, and CheckMATE-2.0.26 [84][85][86] to implement the analysis' cut selections. The validation of the method was provided in our recent work [14].…”

Section: Figures 1 and 3 Indicate That χ0mentioning

confidence: 99%

“…When λ 0.3 and µ tot 500 GeV, the scattering cross-sections of the DM and nucleus tend to be too large to be consistent with the XENON-1T constraints under the premise of the correct DM abundance [13]. This situation keeps valid for any DM mass when the constraints from the LHC search for supersymmetry are included [9,14], and it has a great impact on the DM abundance [10]. For example, the annihilations χ0 1 χ0…”

Section: Introductionmentioning

confidence: 97%

“…After considering the XENON-1T constraints, any of them, however, can no longer be fully responsible for the correct abundance. Instead, the DM prefers to co-annihilate with the Higgsinos to get the density, which corresponds to a correlated parameter space of 2|κ| λ with λ 0.1 [9,14]. We add that, with the improvement of the experimental sensitivity in detecting the DM, the small upper bound of λ will be further reduced.…”

Section: Introductionmentioning

confidence: 99%

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Singlino-dominated dark matter in general NMSSM

Cao,

Li,

Lian

et al. 2021

Preprint

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The general NMSSM describes the Singlino-dominated DM's property by four independent parameters: singlet-doublet Higgs coupling coefficient λ, Higgsino mass µ tot , DM mass m χ0 1 , and singlet Higgs self-coupling coefficient κ. We show by analytic formulae that the first three parameters strongly influence the DM-nucleon scattering rate, while κ usually affects little the scattering. This characteristic implies that singlet-dominated particles may form a secluded DM sector. Under such a theoretical structure, the DM achieves the correct abundance by annihilating into a pair of singlet-dominated Higgs bosons through adjusting κ's value. Its scattering with nucleon is suppressed when λv/µ tot is small. We verify this speculation by sophistically scanning the theory's parameter space with various experiment constraints considered. Besides, we compute the Bayesian evidence of the general NMSSM and that of Z 3 -NMSSM. We find that, at the cost of introducing one additional parameter, the former is about 3.3 × 10 3 times the latter. This result corresponds to Jeffrey's scale of 8.05. It implies that the considered experiments strongly prefer the general NMSSM to the Z 3 -NMSSM.

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Section: Introductioncontrasting

confidence: 99%

“…Finally, we compare the experimentally favored parameter space of the µNMSSM with that of the Z 3 -NMSSM. The latter was obtained in our recent work [14]. We find them quite different.…”

Section: Posterior Probability Densitycontrasting

confidence: 41%

Section: Figures 1 and 3 Indicate That χ0mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Singlino-dominated dark matter in general NMSSM

Cao,

Li,

Lian

et al. 2021

Preprint

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$$M_W$$, dark matter and $$a_\mu $$ in the NMSSM

Domingo¹,

Ellwanger

Hugonie

2022

Eur. Phys. J. C

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We study regions in the parameter space of the NMSSM which are able to simultaneously explain the current measured values for the W mass $$M_W$$ M W and the muon anomalous magnetic moment $$a_\mu $$ a μ , and provide a dark matter relic density consistent with the observations as well as constraints from detection experiments. The corresponding regions feature light charginos and sleptons in the 100 GeV–1 TeV range, at least some of them with masses below 175 GeV such such that the electroweakly-interacting SUSY particles generate sufficiently large contributions to $$M_W$$ M W . The LSP is always singlino-like with a mass below 150 GeV, and could possibly remain invisible even at future detection experiments. Decays of electroweak sparticles proceed through cascades via staus and/or sleptons which makes their detection challenging. We propose benchmark points for future searches of such sparticles. The lightest CP-even scalar may have a mass in the 95–98 GeV range with, however, modest signal rates in view of the mild excesses reported in this range at LEP and by CMS at the LHC.

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The mass-degenerate SM-like Higgs and anomaly of $(g-2)_μ$ in $μ$-term extended NMSSM

Shang,

Zhang,

Heng

2022

Preprint

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We chose the µ-term extended next-to-minimal supersymmetric standard model (µNMSSM) for this work, and the phenomenological research is based on the assumption of double Higgs resonance state as the Standard Model (SM)-like Higgs considering the recent (g − 2)µ result.The study also take into account a variety of experimental results, including direct detection of dark matter (DM) and searching results for sparticles at the Large Hadron Collider (LHC).We study the characteristic of DM confronted with limitations of direct detection experiments.Following that, we concentrate on the properties of the mass-degenerate SM-like Higgs bosons and explaining the anomaly of (g − 2)µ. We conclude that the anomaly of (g − 2)µ can be explained in the scenario with two mass-degenerate SM-like Higgs, and there are samples that meet all current constraints and outperform SM in fitting Higgs data.

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Singlino-dominated dark matter in $Z_3$-NMSSM

Cited by 4 publications

References 86 publications

Singlino-dominated dark matter in general NMSSM

Singlino-dominated dark matter in general NMSSM

$$M_W$$, dark matter and $$a_\mu $$ in the NMSSM

The mass-degenerate SM-like Higgs and anomaly of $(g-2)_μ$ in $μ$-term extended NMSSM

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