Impact of leptonic unitarity and dark matter direct detection experiments on the NMSSM with inverse seesaw mechanism

Cao, Junjie; He, Yangle; Pan, Yusi; Yue, Yuanfang; Zhou, Haijing; Zhu, Pengxuan

doi:10.1007/jhep12(2020)023

Cited by 11 publications

(16 citation statements)

References 96 publications

(161 reference statements)

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“…The former reflects the preference of the obtained samples to the input parameters, and the latter, however, represents the theory's capability to explain experimental data. These statistical quantities have been introduced concisely in [58] and are applied to scrutinize the phenomenology of the NMSSM's seesaw extensions [10,59,60].…”

Section: Numerical Resultsmentioning

confidence: 99%

“…Finally, L B takes a Gaussian form to describe the measured branching ratios of B → X s γ and B 0 s → µ + µ − [66]. The concrete expression of L was given in our previous works [59,60].…”

Section: Research Strategymentioning

confidence: 99%

“…In addition to the fact that the parameter space of the h ≡ h 2 scenario is relatively narrow to fit well with the Higgs data [34], another reason for the difference is that, since h s = h 1 is light, a moderately lightχ 0 1 can make the annihilationχ 0 1χ 0 1 → h s A s occur. A detailed explanation of the PL figure, including how to plot it and understand it correctly, was presented in our previous works [10,60]. For the sake of brevity, it is not repeated here.…”

Section: Jhep06(2021)176mentioning

confidence: 99%

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Singlino-dominated dark matter in general NMSSM

Cao

Lian

et al. 2021

J. High Energ. Phys.

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The general Next-to-Minimal Supersymmetric Standard Model (NMSSM) describes the singlino-dominated dark-matter (DM) property by four independent parameters: singlet-doublet Higgs coupling coefficient λ, Higgsino mass μtot, DM mass $$ {m}_{{\tilde{\chi}}_1^0} $$ m χ ˜ 1 0 , and singlet Higgs self-coupling coefficient κ. The first three parameters strongly influence the DM-nucleon scattering rate, while κ usually affects the scattering only slightly. 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 by adjusting κ’s value. Its scattering with nucleons is suppressed when λv/μtot is small. This speculation is verified by sophisticated scanning of the theory’s parameter space with various experiment constraints considered. In addition, the Bayesian evidence of the general NMSSM and that of Z3-NMSSM is computed. It is found that, at the cost of introducing one additional parameter, the former is approximately 3.3 × 103 times the latter. This result corresponds to Jeffrey’s scale of 8.05 and implies that the considered experiments strongly prefer the general NMSSM to the Z3-NMSSM.

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Section: Numerical Resultsmentioning

confidence: 99%

Section: Research Strategymentioning

confidence: 99%

Section: Jhep06(2021)176mentioning

confidence: 99%

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Singlino-dominated dark matter in general NMSSM

Cao

Lian

et al. 2021

J. High Energ. Phys.

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“…This requirement motivates us to extend the Z 3 -NMSSM to a general NMSSM to increase significantly the Bayesian evidence of the scenarios [84]. It also motivates us to augment the Z 3 -NMSSM with a seesaw mechanism to generate neutrino masses and select the lightest sneutrino as a DM candidate [38,80,89,90]. Pythia-8.2 [93] for parton fragmentation and hadronization, Delphes-3.4.2 [94] for fast simulation of the performance of the ATLAS detector, and CheckMATE-2.0.26 [95][96][97] to implement the analysis cut selections.…”

Section: Discussionmentioning

confidence: 99%

Singlino-dominated dark matter in $Z_3$-NMSSM

Zhou,

Cao,

Lian

et al. 2021

Preprint

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Singlino-dominated dark matter properties are investigated in the Z 3 -NMSSM, producing superweak interactions with nucleons involved in dark matter direct detection experiments. Approximate analytic formulas describing the dark matter abundance and cross-section in scattering with nucleons are used to illustrate a dependence on theory parameters in neutralino and Higgs sectors. It is shown that the measured abundance requires a sizable singlet-doublet Higgs coupling parameter λ, while the detection experimental results prefer a small λ. The parameter space is then surveyed using a nest sampling technique guided by a likelihood function containing various observables in dark matter, Higgs, and B physics, such as the abundance and the scattering cross-section. It is demonstrated that dark matter can achieve the correct abundance through χ0 1 χ01 → t t or a co-annihilation with higgsinos. The former process provides a significantly larger Bayesian evidence than the latter, but it will be entirely excluded by the near future PandaX-4T experiment. Three mechanisms are summarized to suppress dark matter scattering with nucleons, namely a small λ and two kinds of cancellation between different contributions.

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“…The former reflects the preference of the obtained samples to the input parameters, and the latter, however, represents the theory's capability to explain experimental data. These statistical quantities have been introduced concisely in [51] and applied to scrutinize the phenomenology of the NMSSM's seesaw extensions [10,52,53].…”

Section: Numerical Resultsmentioning

confidence: 99%

Singlino-dominated dark matter in general NMSSM

Cao,

Li,

Lian

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

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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Impact of leptonic unitarity and dark matter direct detection experiments on the NMSSM with inverse seesaw mechanism

Cited by 11 publications

References 96 publications

Singlino-dominated dark matter in general NMSSM

Singlino-dominated dark matter in general NMSSM

Singlino-dominated dark matter in $Z_3$-NMSSM

Singlino-dominated dark matter in general NMSSM

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