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Neutrino Echoes from Multimessenger Transient Sources
Kohta Murase1, Ian M Shoemaker2
1Department of Physics and Department of Astronomy and Astrophysics, Center for Particle and Gravitational Astrophysics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA and Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto, Kyoto 16802, Japan.
Physical Review Letters
|January 11, 2020
Summary
Multimessenger astrophysics using neutrino alerts is now feasible. New methods using neutrino echoes can probe beyond the standard model physics and dark matter interactions, complementing existing experiments.
Area of Science:
- * Particle astrophysics
- * Cosmology
- * Neutrino physics
Background:
- * The IceCube-170922A event confirmed the feasibility of multimessenger astrophysics triggered by neutrino alerts.
- * Standard Model (SM) physics does not fully explain cosmological tensions.
- * Neutrino interactions with the cosmic neutrino background and dark matter are not well understood.
Purpose of the Study:
- * To propose a novel method for probing neutrino interactions beyond the Standard Model (BSM).
- * To investigate the potential of time-delay signatures from secret neutrino interactions.
- * To establish new constraints on BSM physics complementary to existing experimental data.
Main Methods:
- * Analyzing time-delay signatures caused by hypothetical neutrino interactions.
- * Utilizing multimessenger observations of bright neutrino transients.
- * Comparing BSM-induced neutrino echoes with spectral modification constraints.
Main Results:
- * Proposed a novel probe for BSM neutrino interactions using neutrino echoes.
- * Demonstrated that these echoes are distinct from spectral modification constraints.
- * Identified the potential for future experiments like IceCube-Gen2, KM3Net, and Hyper-Kamiokande to implement this method.
Conclusions:
- * Multimessenger observations of neutrino transients offer a unique window into BSM physics.
- * Neutrino echo signatures provide a powerful and complementary approach to probe dark matter and neutrino interactions.
- * This method can help resolve current tensions in cosmological data and advance particle physics models.
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