Dark matter and lepton flavour phenomenology in a singlet-doublet scotogenic model

Sarazin, Maud; Bernigaud, Jordan; Herrmann, Björn

doi:10.1007/jhep12(2021)116

Cited by 8 publications

(4 citation statements)

References 65 publications

(89 reference statements)

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“…Even in this setup the assumption of a single annihilation channel basically never holds. Consequently, it generally cannot be expected to hold in more complex extensions of the Standard Model involving a richer field content or even several possible dark matter candidates such as, e.g., supersymmetric models [59,60], the inert doublet model [61][62][63], or scotogenic models [64][65][66]. We suggest to derive upper limits on the dark matter annihilation cross-section within concrete particle physics frameworks rather than considering generic individual annihilation channels.…”

Section: Discussionmentioning

confidence: 99%

Dark matter indirect detection limits from complete annihilation patterns

Armand

Herrmann

2022

J. Cosmol. Astropart. Phys.

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While cosmological and astrophysical probes suggest that dark matter would make up for 85% of the total matter content of the Universe, the determination of its nature remains one of the greatest challenges of fundamental physics. Assuming the ΛCDM cosmological model, Weakly Interacting Massive Particles would annihilate into Standard Model particles, yielding γ-rays, which could be detected by ground-based telescopes. Dwarf spheroidal galaxies represent promising targets for such indirect searches as they are assumed to be highly dark matter dominated with the absence of astrophysical sources nearby. Previous studies have led to upper limits on the annihilation cross-section assuming single exclusive annihilation channels. In this work, we consider a more realistic situation and take into account the complete annihilation pattern within a given particle physics model. This allows us to study the impact on the derived upper limits on the dark matter annihilation cross-section from a full annihilation pattern compared to the case of a single annihilation channel. We use mock data for the Cherenkov Telescope Array simulating the observations of the promising dwarf spheroidal galaxy Sculptor. We show the impact of considering the full annihilation pattern within a simple framework where the Standard Model of particle physics is extended by a singlet scalar. Such a model shows new features in the shape of the predicted upper limit which reaches a value of 〈σv〉 = 3.8 × 10-24 cm-3s-1 for a dark matter mass of 1 TeV at 95% confidence level. We suggest considering the complete particle physics information in order to derive more realistic limits.

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Section: Discussionmentioning

confidence: 99%

Dark matter indirect detection limits from complete annihilation patterns

Armand

Herrmann

2022

J. Cosmol. Astropart. Phys.

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show abstract

“…Even in this setup the assumption of a single annihilation channel basically never holds. Consequently, it generally cannot be expected to hold in more complex extensions of the Standard Model involving a richer field content or even several possible dark matter candidates such as, e.g., supersymmetric models [58,59], the inert doublet model [60][61][62], or scotogenic models [63][64][65]. We suggest to derive upper limits on the dark matter annihilation cross-section within concrete particle physics frameworks rather than considering generic individual annihilation channels.…”

Section: Discussionmentioning

confidence: 99%

Dark matter indirect detection limits from complete annihilation patterns

Armand¹,

Herrmann²

2022

Preprint

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While cosmological and astrophysical probes suggest that dark matter would make up for 85% of the total matter content of the Universe, the determination of its nature remains one of the greatest challenges of fundamental physics. Assuming the ΛCDM cosmological model, Weakly Interacting Massive Particles would annihilate into Standard Model particles, yielding γ-rays, which could be detected by ground-based telescopes. Dwarf spheroidal galaxies represent promising targets for such indirect searches as they are assumed to be highly dark matter dominated with the absence of astrophysical sources nearby. Previous studies have led to upper limits on the annihilation cross-section assuming single exclusive annihilation channels. In this work, we consider a more realistic situation and take into account the complete annihilation pattern within a given particle physics model. This allows us to study the impact on the derived upper limits on the dark matter annihilation cross-section from a full annihilation pattern compared to the case of a single annihilation channel. We use mock data for the Cherenkov Telescope Array simulating the observations of the promising dwarf spheroidal galaxy Sculptor. We show the impact of considering the full annihilation pattern within a simple framework where the Standard Model of particle physics is extended by a singlet scalar. Such a model shows new features in the shape of the predicted upper limit which reaches a value of σv = 3.8 × 10 −24 cm −3 s −1 for a dark matter mass of 1 TeV at 95% confidence level. We suggest to consider the complete particle physics information in order to derive more realistic limits.

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“…In this section, we discuss in details the canonical Scotogenic model [71] which is a simple extension of SM intimately linking the neutrino mass generation with WIMP dark matter. Since, the initial proposal, the scotogenic mechanism has proved immensely popular and many different extensions of the basic mechanism have been proposed over the years, for 3 some recent works see [72][73][74][75][76][77][78][79][80][81][82][83][84][85]. However, the original Scotogenic model of Ma [71] still stands out for its simplicity and elegance.…”

Section: The Canonical Scotogenic Modelmentioning

confidence: 99%

CDF-II $W$ Boson Mass Anomaly in the Canonical Scotogenic Neutrino-Dark Matter Model

Batra¹,

A²,

Mandal³

et al. 2022

Preprint

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The CDF-II collaboration's recent high-precision measurement of W boson mass indicates new physics contribution(s) beyond the Standard Model. We investigate the possibility of the well-known canonical Scotogenic model, where dark matter particle running in the loop generates neutrino masses, to explain the CDF-II measurement. We show that the doublet scalar carrying a dark parity charge can account for the W boson mass anomaly through oblique S,T,U parameter corrections. For both scalar and fermionic dark matter possibilities, we simultaneously examine the constraints coming from a) neutrino mass, oscillation, neutrinoless double beta decay and lepton flavour violation experiments, b) from dark matter relic density and direct detection experiments c) from the oblique S,T,U parameter values consistent with CDF-II W boson measurement. We show that the canonical Scotogenic model can simultaneously explain all the aforementioned issues.

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Dark matter and lepton flavour phenomenology in a singlet-doublet scotogenic model

Cited by 8 publications

References 65 publications

Dark matter indirect detection limits from complete annihilation patterns

Dark matter indirect detection limits from complete annihilation patterns

Dark matter indirect detection limits from complete annihilation patterns

CDF-II $W$ Boson Mass Anomaly in the Canonical Scotogenic Neutrino-Dark Matter Model

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