Cosmic neutrino cascades from secret neutrino interactions

Ng, Kenny C. Y.; Beacom, J. F.

doi:10.1103/physrevd.90.065035

Cited by 149 publications

(102 citation statements)

References 105 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This scenario also provides a natural explanation for the lack of events beyond 3 PeV. Other recent proposals, in addition to certain models of astrophysical sources referred to previously, which also account for the cut-off at PeV energies are discussed in [51,52,[59][60][61][62][63].…”

Section: Discussionmentioning

confidence: 78%

The direct detection of boosted dark matter at high energies and PeV events at IceCube

Bhattacharya

Gandhi

Gupta

2015

J. Cosmol. Astropart. Phys.

View full text Add to dashboard Cite

Abstract. We study the possibility of detecting dark matter directly via a small but energetic component that is allowed within present-day constraints. Drawing closely upon the fact that neutral current neutrino nucleon interactions are indistinguishable from DM-nucleon interactions at low energies, we extend this feature to high energies for a small, non-thermal but highly energetic population of DM particle χ, created via the decay of a significantly more massive and long-lived non-thermal relic φ, which forms the bulk of DM. If χ interacts with nucleons, its cross-section, like the neutrino-nucleus coherent cross-section, can rise sharply with energy leading to deep inelastic scattering, similar to neutral current neutrino-nucleon interactions at high energies. Thus, its direct detection may be possible via cascades in very large neutrino detectors. As a specific example, we apply this notion to the recently reported three ultra-high energy PeV cascade events clustered around 1 − 2 PeV at IceCube (IC). We discuss the features which may help discriminate this scenario from one in which only astrophysical neutrinos constitute the event sample in detectors like IC.

show abstract

Section: Discussionmentioning

confidence: 78%

The direct detection of boosted dark matter at high energies and PeV events at IceCube

Bhattacharya

Gandhi

Gupta

2015

J. Cosmol. Astropart. Phys.

View full text Add to dashboard Cite

show abstract

“…The future sensitivity of the IceCube experiment to new neutrino interactions was studied in Refs. [15,23]. While the scenario considered in those works is qualitatively different from the one considered here, we expect that the sensitivity of IceCube should be similar for the two models.…”

Section: F Cosmological Constraintmentioning

confidence: 75%

“…The MINOS neutrino beam consists of 91.7% ν μ and 7%ν μ [37,38]. With it, the collaboration measured the charged-current interaction rate for muon antineutrinos,ν μ þ p → μ þ þ n, to be 3.84 AE 0.05 events=10 15 protons-on-target [39]. A nonzero λ μμ coupling leads to additional events with a μ þ in the final state associated to the muon neutrino flux-roughly 13 times greater than the antineutrino flux-by radiating a ϕ particle, as depicted in Fig.…”

Section: B Minosmentioning

confidence: 99%

See 1 more Smart Citation

Lepton-number-charged scalars and neutrino beamstrahlung

Berryman¹,

Gouvêa²,

Kelly³

et al. 2018

Phys. Rev. D

115

View full text Add to dashboard Cite

Experimentally, baryon number minus lepton number, B − L, appears to be a good global symmetry of nature. We explore the consequences of the existence of gauge-singlet scalar fields charged under B − Ldubbed lepton-number-charged scalars (LeNCSs)-and postulate that these couple to the standard model degrees of freedom in such a way that B − L is conserved even at the nonrenormalizable level. In this framework, neutrinos are Dirac fermions. Including only the lowest mass-dimension effective operators, some of the LeNCSs couple predominantly to neutrinos and may be produced in terrestrial neutrino experiments. We examine several existing constraints from particle physics, astrophysics, and cosmology to the existence of a LeNCS carrying B − L charge equal to two, and discuss the emission of LeNCSs via "neutrino beamstrahlung," which occurs every once in a while when neutrinos scatter off of ordinary matter. We identify regions of the parameter space where existing and future neutrino experiments, including the Deep Underground Neutrino Experiment, are at the frontier of searches for such new phenomena.

show abstract

“…Among the possibilities explored are viable astrophysical sources [11][12][13][14][15][16][17][18][19][20][21], a possible DM connection [22][23][24][25][26][27], a leptoquark resonance [28], the decay of massive neutrinos [29,30], the decay of a very heavy long-lived particle [31,32] or even the possibility that these events could be understood in terms of novel interactions that neutrinos have with the cosmic neutrino background [33][34][35]. Finally, in ref.…”

Section: Jhep02(2015)189mentioning

confidence: 99%

Possible interpretations of IceCube high-energy neutrino events

Fong

Minakata

Panes

et al. 2015

J. High Energ. Phys.

View full text Add to dashboard Cite

Abstract:We discuss possible interpretations of the 37 high energy neutrino events observed by the IceCube experiment in the South Pole. We examine the possibility to explain the observed neutrino spectrum exclusively by the decays of a heavy long-lived particle of mass in the PeV range. We compare this with the standard scenario, namely, a single power-law spectrum related to neutrinos produced by astrophysical sources and a viable hybrid situation where the spectrum is a product of two components: a power-law and the long-lived particle decays. We present a simple extension of the Standard Model that could account for the heavy particle decays that are needed in order to explain the data. We show that the current data equally supports all above scenarios and try to evaluate the exposure needed in order to falsify them in the future.

show abstract

Cosmic neutrino cascades from secret neutrino interactions

Cited by 149 publications

References 105 publications

The direct detection of boosted dark matter at high energies and PeV events at IceCube

The direct detection of boosted dark matter at high energies and PeV events at IceCube

Lepton-number-charged scalars and neutrino beamstrahlung

Possible interpretations of IceCube high-energy neutrino events

Contact Info

Product

Resources

About