Impact of sterile neutrino dark matter on core-collapse supernovae

Warren, MacKenzie; Mathews, Grant J.; Meixner, M.; Hidaka, Jun; Kajino, Toshitaka

doi:10.1142/s0217751x16501372

Cited by 27 publications

(19 citation statements)

References 51 publications

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“…In this letter, we add a new limit to this inventory of constraints by considering sterile neutrino production in core-collapse supernovae (SN) [21][22][23][24][25][26][27][28][29][30][31]. A supernova develops when a 9M star runs out of nuclear fuel.…”

Section: Introductionmentioning

confidence: 99%

Production of keV sterile neutrinos in supernovae: New constraints and gamma-ray observables

Argüelles

Brdar

2019

Phys. Rev. D

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We study the production of sterile neutrinos in supernovae, focusing in particular on the keV-MeV mass range, which is the most interesting range if sterile neutrinos are to account for the dark matter in the Universe. Focusing on the simplest scenario in which sterile neutrinos mixes only with muon or tau neutrino, we argue that the production of keV-MeV sterile neutrinos can be strongly enhanced by a Mikheyev-Smirnov-Wolfenstein (MSW) resonance, so that a substantial flux is expected to emerge from a supernova, even if vacuum mixing angles between active and sterile neutrinos are tiny. Using energetics arguments, this yields limits on the sterile neutrino parameter space that reach down to mixing angles on the order of sin 2 2θ 10 −14 and are up to an order of magnitude stronger than those from X-ray observations. While supernova limits suffer from larger systematic uncertainties than X-ray limits they apply also to scenarios in which sterile neutrinos are not abundantly produced in the early Universe. We also compute the flux of O(MeV) photons expected from the decay of sterile neutrinos produced in supernovae, but find that it is beyond current observational reach even for a nearby supernova.1 In this work, for brevity, the term "sterile neutrino" is denoting both sterile neutrinos and antineutrinos. The only exception is when discussing the adiabatic production where we refer explicitly to "sterile antineutrinos" because the resonance appears in the antineutrino channel.

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Section: Introductionmentioning

confidence: 99%

Production of keV sterile neutrinos in supernovae: New constraints and gamma-ray observables

Argüelles

Brdar

2019

Phys. Rev. D

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“…20,21 This ensures that all electron neutrinos of the given flavor with the resonance energy E res will oscillate to sterile neutrinos, and vice versa. 23,24 It is probable that incoherent, scattering-induced oscillations will be significant in the high matter densities of the central core, but this will not be a dominant effect and will be left to future work.…”

Section: Matter-enhanced Neutrino Oscillationsmentioning

confidence: 99%

Sterile neutrino dark matter and core-collapse supernovae

Mathews¹,

Warren²,

Hidaka³

et al. 2017

The Fourteenth Marcel Grossmann Meeting

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We have explored the impact of sterile neutrino dark matter on core-collapse supernova explosions. We have included oscillations between electron neutrinos or mixed μ, τ neutrinos and right-handed sterile neutrinos into a supernova model. We have chosen sterile neutrino masses and mixing angles that are consistent with sterile neutrino dark matter candidates as indicated by recent x-ray flux measurements. Using these simulations, we have explored the impact of sterile neutrinos on the core bounce and shock reheating. We find that, for ranges of sterile neutrino mass and mixing angle consistent with most dark matter constraints, the shock energy can be significantly enhanced and even a model that does not explode can be made to explode. In addition, we have found that the presence of a sterile neutrino may lead to detectable changes in the observed neutrino luminosities.

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“…This includes, of course, the keV dark matter contenders, whose creation benefits from the active neutrinos encountering at least one resonance on their way out of the proto-neutron star, as in Refs. [36,[64][65][66]. Formulating accurate constraints on the basis of sterile neutrino production in supernovae is a challenge, made even more so if the particles are self-interacting.…”

Section: Introductionmentioning

confidence: 99%

Self-interacting sterile neutrino dark matter: The heavy-mediator case

Johns

Fuller

2019

Phys. Rev. D

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For active-sterile mixing to be responsible for the full relic abundance of dark matter additional new physics is needed beyond the keV-scale sterile neutrino itself. The extra ingredient we consider here is the presence of self-interactions among the sterile neutrinos. We examine whether active-tosterile conversion is amplified enough in this scenario that the observed abundance of dark matter can be obtained with a subconstraint mixing angle. This turns out never to be the case in the region we explore: either self-interactions have too small an impact and cannot escape bounds on the mass and mixing angle, or they have too great an impact and cause dark matter to be overproduced. The sharp transition from marginal to excessive effectiveness occurs because a resonance criterion is met in the effective in-medium mixing angle. Once the system goes resonant the game is as good as over, as nonlinearity in the Boltzmann equation leads to runaway production of sterile neutrinos, beginning at a plasma temperature of a few hundred MeV and typically ending at a few tens of MeV. The scenario is therefore ruled out largely by its own dynamics. In this study we focus exclusively on mediators heavier than ∼ 1 GeV; future work will extend the analysis to lighter mediators, allowing for contact to be made with the kinds of scenarios motivated by issues of small-scale structure.

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Impact of sterile neutrino dark matter on core-collapse supernovae

Cited by 27 publications

References 51 publications

Production of keV sterile neutrinos in supernovae: New constraints and gamma-ray observables

Production of keV sterile neutrinos in supernovae: New constraints and gamma-ray observables

Sterile neutrino dark matter and core-collapse supernovae

Self-interacting sterile neutrino dark matter: The heavy-mediator case

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