Confusing the extragalactic neutrino flux limit with a neutrino propagation limit

Abstract

We study the possible suppression of the extragalactic neutrino flux due to a nonstandard interaction during its propagation. In particular, we study neutrino interaction with an ultra-light scalar field dark matter. It is shown that the extragalactic neutrino flux may be suppressed by such an interaction, leading to a new mechanism to reduce the ultra-high energy neutrino flux. We study both the cases of non-self-conjugate as well as self-conjugate dark matter. In the first case, the suppression is independent of the neutrino and dark matter masses. We conclude that care must be taken when explaining limits on the neutrino flux through source acceleration mechanisms only, since there could be other mechanisms for the reduction of the neutrino flux.

15 pages, 4 figures. Important changes implemented. Abstract modified. Conclusions remain. To be published in JCAP

References in corpus (9)

• Dark Matter from new Technicolor Theories
• Towards Working Technicolor: Effective Theories and Dark Matter
• Cosmological bounds on dark matter-neutrino interactions
• Limits on Neutrino Emission from Gamma-Ray Bursts with the 40 String IceCube Detector
• ${\varphi }^2$ as Dark Matter
• Scalar Field Dark Matter: non-spherical collapse and late time behavior
• Scalar Field Dark Matter: head-on interaction between two structures
• Study of TeV Neutrinos with Upward Showering Muons in Super-Kamiokande
• Neutrino Coannihilation on Dark-Matter Relics?

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• Interactions of Astrophysical Neutrinos with Dark Matter: A model building perspective
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