Supersymmetric sphaleron configurations as the origin of the perplexing ANITA events

The ANITA experiment has observed two air shower events with energy ∼500PeV emerging from the Earth with exit angles of ∼30∘. We explain ANITA events as arising from neutrino-induced supersymmetric sphaleron transitions. These high-multiplicity configurations could contain a large number of long-liv...

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Bibliographic Details
Main Authors: Luis A. Anchordoqui, Ignatios Antoniadis
Format: Article
Language:English
Published: Elsevier 2019-03-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269319300929
Description
Summary:The ANITA experiment has observed two air shower events with energy ∼500PeV emerging from the Earth with exit angles of ∼30∘. We explain ANITA events as arising from neutrino-induced supersymmetric sphaleron transitions. These high-multiplicity configurations could contain a large number of long-lived supersymmetric fermions, which can traverse the Earth and decay in the atmosphere to initiate upward-pointing air showers at large angles above the horizon. We comment on the sensitivity of new generation LHC detectors, designed to searching for displaced decays of beyond standard model long-lived particles, to test our model. Keywords: Supersymmetric sphaleron transitions
ISSN:0370-2693