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Setting Limits on Supersymmetry Using Simplified Models

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

Event excess in the MiniBooNE search for ¯νμ→¯νe oscillations.

A A Aguilar-Arevalo¹, C E Anderson, S J Brice

¹Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, D.F. 04510, México.

Physical Review Letters

|January 15, 2011

Summary

This summary is machine-generated.

The MiniBooNE experiment observed an excess of events suggesting muon antineutrino to electron antineutrino oscillations. This finding aligns with previous antineutrino oscillation evidence.

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Area of Science:

Particle Physics
Neutrino Physics

Background:

Neutrino oscillations are a key phenomenon in particle physics.
Previous experiments have provided evidence for antineutrino oscillations.

Purpose of the Study:

To search for muon antineutrino to electron antineutrino oscillations.
To analyze data from the MiniBooNE experiment.

Main Methods:

Utilized a data sample of 5.66×10²⁰ protons on target.
Analyzed events in the neutrino energy range of 475-1250 MeV.
Performed oscillation fits and background consistency checks.

Main Results:

Observed an excess of 20.9±14.0 events.
The background-only hypothesis has a consistency probability of 0.5%.
Oscillation fits yielded a χ² probability of 8.7%.

Conclusions:

Data are consistent with muon antineutrino to electron antineutrino oscillations.
The results support oscillation parameters in the 0.1 to 1.0 eV² Δm² range.
Findings corroborate evidence from the Liquid Scintillator Neutrino Detector.