Light Sterile Neutrinos at νSTORM: Decoherence and CP violation

Peter Ballett; Matheus Hostert; Silvia Pascoli

doi:10.48550/arxiv.1705.09214

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Light Sterile Neutrinos at νSTORM: Decoherence and CP violation

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Light Sterile Neutrinos at νSTORM: Decoherence and CP violation

Peter Ballett, Matheus Hostert and Silvia Pascoli

ArXiv.org

Cornell University

05/25/2017

DOI: 10.48550/arxiv.1705.09214

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Preprint (Author's original)This preprint has not been evaluated by subject experts through peer review. Preprints may undergo extensive changes and/or become peer-reviewed journal articles. Open Access

Abstract

Light sterile neutrino oscillations can be partially or completely washed out at short-baseline experiments due to the breaking of neutrino production coherence. In this work we address this issue in sterile searches at STORM, an experimental proposal for a beam of neutrinos from the decay of stored muons. We work with 3+1 and 3+2 models, the latter introducing CP violation at short-baselines. We find that decoherence effects are only relevant for sterile masses above eV , and that, even in that regime, we are able to place strong appearance bounds in such clean environments. In addition, the novel signatures of CP violation in the parameter space of interest can be identified with a significance of up to > 3σ.

Physics - High Energy Physics - Phenomenology

Details

Title: Subtitle: Light Sterile Neutrinos at νSTORM: Decoherence and CP violation
Creators: Peter Ballett
Matheus Hostert
Silvia Pascoli
Resource Type: Preprint
Publication Details: ArXiv.org
DOI: 10.48550/arxiv.1705.09214
ISSN: 2331-8422
Publisher: Cornell University; Ithaca, New York
Language: English
Date posted: 05/25/2017
Academic Unit: Physics and Astronomy
Record Identifier: 9984946616202771

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