MeV scale model of SIMP dark matter, neutrino mass and leptogenesis

Mohanty, Sanghamitra; Patra, Ayon; Srivastava, Tripurari

doi:10.1088/1475-7516/2020/03/027

Cited by 4 publications

(4 citation statements)

References 121 publications

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“…they interact only at high resonance energies with small cross-sections. There is a new hypothetical model for Dark Matter called SIMP with mass around 100 MeV and interacting strongly at high resonance energies [26]. The strong-neutrinos do fit into this category.…”

Section: Realization Of the Su(4) Preon Modelmentioning

confidence: 99%

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Calculation of the Standard Model Parameters and Particles Based on a SU(4) Preon Model

Helm

2024

JMP

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This paper describes an extension and a new foundation of the Standard Model of particle physics based on a SU(4)-force called hyper-color, and on preon subparticles. The hyper-color force is a generalization of the SU(2)based weak interaction and the SU(1)-based right-chiral self-interaction, in which the W-and the Z-bosons are Yukawa residual-field-carriers of the hyper-color force, in the same sense as the pions are the residual-field-carriers of the color SU(3) interaction. Using the method of numerical minimization of the SU(4)-action based on this model, the masses and the inner structure of leptons, quarks and weak bosons are calculated: the mass results are very close to the experimental values. We calculate also precisely the value of the Cabibbo angle, so the mixing matrices of the Standard model, CKM matrix for quarks and PMNS matrix for neutrinos can also be calculated. In total, we reduce the 29 parameters of the Standard Model to a total of 7 parameters.

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Section: Realization Of the Su(4) Preon Modelmentioning

confidence: 99%

“…The parameters of the three generations (flavors) are shown in Tables 6-8. , , 26 GeV, ΔE tot = 0.70.…”

Section: Charged Leptons Electron Muon Taumentioning

confidence: 99%

Calculation of the Standard Model Parameters and Particles Based on a SU(4) Preon Model

Helm

2024

JMP

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“…Investigations [25,26,30] have been carried out in good detail to restrict this model with various constraints from collider and direct searches -however some of these bounds are presently outdated. The two-singlet extension scenarios have also been explored in some other contexts such as the exchange-driven freeze out mechanism [45], dwarf galaxy density profiles [31], MeV scale SIMP dark matter with a 3 → 2 process dictating the relic [46], and mitigating direct detection bounds under a mix of annihilation and co-annihilation of multicomponent dark matter [47]. In this work, we update the exclusion limits from the latest collider and direct search results with a focus on relaxing the direct detection constraints taking advantage of the destructive interference between the two higgs exchange diagrams and its implications for possible future results.…”

Section: Dark Matter Phenomenology In the Two-singlet Modelmentioning

confidence: 99%

An update on the two singlet dark matter model

Basak

Coleppa

Loho

2021

J. High Energ. Phys.

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We revisit the two real singlet extension of the Standard Model with a $$ {Z}_2\times {Z}_2^{\prime } $$ Z 2 × Z 2 ′ symmetry. One of the singlet scalars S2, by virtue of an unbroken $$ {Z}_2^{\prime } $$ Z 2 ′ symmetry, plays the role of a stable dark matter candidate. The other scalar S1, with spontaneously broken Z2-symmetry, mixes with the SM Higgs boson and acts as the scalar mediator. We analyze the model by putting in the entire set of theoretical and recent experimental constraints. The latest bounds from direct detection Xenon1T experiment severely restricts the allowed region of parameter space of couplings. To ensure the dark matter satisfies the relic abundance criterion, we rely on the Breit-Wigner enhanced annihilation cross-section. Further, we study the viability of explaining the observed gamma-ray excess in the galactic center in this model with a dark matter of mass in the ∼ 36 − 51 GeV window and present our conclusions.

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“…Investigations [20,21,25] have been carried out in good detail to restrict this model with various constraints from collider and direct searches -however some of these bounds are presently outdated. The two-singlet extension scenarios have also been explored in some other contexts such as the exchange-driven freeze out mechanism [38], dwarf galaxy density profiles [26], MeV scale SIMP dark matter with a 3 → 2 process dictating the relic [39], and mitigating direct detection bounds under a mix of annihilation and co-annihilation of multicomponent dark matter [40]. In this work, we update the exclusion limits from the latest collider and direct search results with a focus on relaxing the direct detection constraints taking advantage of the destructive interference between the two higgs exchange diagrams and its implications for possible future results.…”

Section: Dark Matter Phenomenology In the Two-singlet Modelmentioning

confidence: 99%

An update on the two singlet Dark Matter model

Basak,

Coleppa,

Loho

2021

Preprint

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We revisit the two real singlet extension of the Standard Model with a Z2 × Z 2 symmetry. One of the singlet scalars S2, by virtue of an unbroken Z 2 symmetry, plays the role of a stable dark matter candidate. The other scalar S1, with spontaneously broken Z2-symmetry, mixes with the SM Higgs boson and acts as the scalar mediator. We analyze the model by putting in the entire set of theoretical and recent experimental constraints. The latest bounds from direct detection Xenon1T experiment severely restricts the allowed region of parameter space of couplings. To ensure the dark matter satisfies the relic abundance criterion, we rely on the Breit-Wigner enhanced annihilation cross-section. Further, we study the viability of explaining the observed gamma-ray excess in the galactic center in this model with a dark matter of mass in the ∼ 36 − 51 GeV window and present our conclusions.

show abstract

MeV scale model of SIMP dark matter, neutrino mass and leptogenesis

Cited by 4 publications

References 121 publications

Calculation of the Standard Model Parameters and Particles Based on a SU(4) Preon Model

Calculation of the Standard Model Parameters and Particles Based on a SU(4) Preon Model

An update on the two singlet dark matter model

An update on the two singlet Dark Matter model

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