Search for Hidden Neutrinos at the European Spallation Source: the SHiNESS experiment

Fuente: arXiv
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Autori principali: Soleti, Stefano Roberto, Coloma, Pilar, Cadenas, Juan Jose Gómez, Cabrera, Anatael
Natura: Preprint
Pubblicazione: 2023
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author Soleti, Stefano Roberto
Coloma, Pilar
Cadenas, Juan Jose Gómez
Cabrera, Anatael
author_facet Soleti, Stefano Roberto
Coloma, Pilar
Cadenas, Juan Jose Gómez
Cabrera, Anatael
contents The upcoming European Spallation Source (ESS) will soon provide the most intense neutrino source in the world. We propose the Search for Hidden Neutrinos at the ESS (SHiNESS) experiment, highlighting its unique opportunities to search for the existence of sterile neutrinos across a wide range of scales: anomalous oscillations at short baselines; non-unitarity mixing in the active neutrino sector; or an excess of events with multiple leptons in the final state, produced in the decay of heavy neutrinos. The baseline design of the detector comprises an active volume filled with 42 ton of liquid scintillator, located 25 m far from the ESS beam target. We show that SHiNESS will be able to considerably improve current global limits for the three cases outlined above. Although in this work we focus on new physics in the neutrino sector, the proposed setup may also be used to search for signals from weakly interacting particles in a broader context.
format Preprint
id arxiv_https___arxiv_org_abs_2311_18509
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Search for Hidden Neutrinos at the European Spallation Source: the SHiNESS experiment
Soleti, Stefano Roberto
Coloma, Pilar
Cadenas, Juan Jose Gómez
Cabrera, Anatael
High Energy Physics - Experiment
High Energy Physics - Phenomenology
The upcoming European Spallation Source (ESS) will soon provide the most intense neutrino source in the world. We propose the Search for Hidden Neutrinos at the ESS (SHiNESS) experiment, highlighting its unique opportunities to search for the existence of sterile neutrinos across a wide range of scales: anomalous oscillations at short baselines; non-unitarity mixing in the active neutrino sector; or an excess of events with multiple leptons in the final state, produced in the decay of heavy neutrinos. The baseline design of the detector comprises an active volume filled with 42 ton of liquid scintillator, located 25 m far from the ESS beam target. We show that SHiNESS will be able to considerably improve current global limits for the three cases outlined above. Although in this work we focus on new physics in the neutrino sector, the proposed setup may also be used to search for signals from weakly interacting particles in a broader context.
title Search for Hidden Neutrinos at the European Spallation Source: the SHiNESS experiment
topic High Energy Physics - Experiment
High Energy Physics - Phenomenology
url https://arxiv.org/abs/2311.18509