2010/12/31 by Juan Barranco, J. Barranco, O. G. Miranda +7 · 17 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #Dark matter #Flux (metallurgy) #Limit (mathematics) #Measurements of neutrino speed #Neutrino #Neutrino Physics Research #Neutrino oscillation #Solar neutrino #Solar neutrino problem #astro-ph.CO #hep-ph
paper · pdf · doi:10.1088/1475-7516/2011/10/007
published in Journal of Cosmology and Astroparticle Physics 2011(10), 007 (Institute of Physics) · 15 pages, 4 figures. Important changes implemented. Abstract modified. Conclusions remain. To be published in JCAP
arxiv created 2011/09/23 · openalex publication_date 2011/10/05 · arxiv updated 2015/03/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.