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Related Experiment Video

Updated: Feb 17, 2026

A Microfluidic Approach for the Study of Ice and Clathrate Hydrate Crystallization

A Microfluidic Approach for the Study of Ice and Clathrate Hydrate Crystallization

Published on: August 18, 2022

Double-Cascade Events from New Physics in Icecube.

Pilar Coloma¹, Pedro A N Machado¹, Ivan Martinez-Soler²

¹Theory Department, Fermi National Accelerator Laboratory, Post Office Box 500, Batavia, Illinois 60510, USA.

Physical Review Letters

|December 9, 2017

Summary

This summary is machine-generated.

New physics models predict heavy neutrinos from energetic atmospheric neutrinos. IceCube can detect these as distinctive "double-bang" events, constraining GeV-scale sterile neutrino models with existing data.

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Area of Science:

Particle physics
Astrophysics
Neutrino physics

Background:

New physics models propose neutrino up-scattering into heavier states.
Energetic neutrinos could produce heavy neutrinos that decay after traveling some distance.
Atmospheric neutrinos provide a potential source for these events.

Purpose of the Study:

To investigate the potential for detecting heavy neutrino decay signatures using atmospheric neutrinos at IceCube.
To explore the
double-bang
(DB) event topology as a unique signature of new physics.
To assess the capability of IceCube in constraining theoretical models of sterile neutrinos.

Main Methods:

Analysis of atmospheric neutrino flux as a source of potential heavy neutrino events.
Simulation and identification of the
double-bang
(DB) event topology at the IceCube detector.
Evaluation of background event rates, specifically coincident atmospheric cascades.

Main Results:

The
double-bang
(DB) event topology is identified as a distinctive signature with extremely low background rates.
IceCube has the potential to already derive competitive constraints on models involving GeV-scale sterile neutrinos.
Existing IceCube data can be utilized to probe these new physics scenarios.

Conclusions:

The detection of
double-bang
(DB) events from atmospheric neutrinos offers a unique window into new physics beyond the Standard Model.
IceCube is well-suited to search for and constrain models with GeV-scale sterile neutrinos.
This research highlights the potential of astrophysical neutrino detectors in advancing particle physics.