Signatures of supermassive charged gravitinos in liquid scintillator detectors

Fuente: arXiv
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Autores principales: Kruk, Adrianna, Lesiuk, Michał, Meissner, Krzysztof A., Nicolai, Hermann
Formato: Preprint
Publicado: 2024
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author Kruk, Adrianna
Lesiuk, Michał
Meissner, Krzysztof A.
Nicolai, Hermann
author_facet Kruk, Adrianna
Lesiuk, Michał
Meissner, Krzysztof A.
Nicolai, Hermann
contents In a previous work [K.A. Meissner and H. Nicolai, Eur. Phys. J. C {\bf 84}, 269 (2024)], two of the present authors have suggested possible experimental ways to search for stable supermassive particles with electric charges of $\cO(1)$ in upcoming underground experiments, in particular the new Jiangmen Underground Neutrino Observatory (JUNO) experiment. In the current paper, we present a detailed analysis of the specific signature of such gravitino-induced events for the JUNO detector and for upcoming liquid argon detectors like DUNE (Deep Underground Neutrino Experiment). The proposed method of detection relies on the ``glow'' produced by photons during the passage of such particles through the detector liquid, which would last for about a few to a few hundred microseconds depending on its velocity and the track. The cross sections for electronic excitation of the main component of the scintillator liquid, namely linear alkylbenzene (LAB), by the passing gravitino are evaluated using quantum-chemical methods. The results show that, if such particles exist, the resulting signals would lead to a unique and unmistakable signature, for which we present event simulations as they would be seen by the JUNO or DUNE photomultipliers. Our analysis brings together two very different research areas, namely fundamental particles physics and the search for a fundamental theory on the one hand, and methods of advanced quantum chemistry on the other.
format Preprint
id arxiv_https___arxiv_org_abs_2407_04883
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Signatures of supermassive charged gravitinos in liquid scintillator detectors
Kruk, Adrianna
Lesiuk, Michał
Meissner, Krzysztof A.
Nicolai, Hermann
High Energy Physics - Phenomenology
High Energy Physics - Theory
Chemical Physics
In a previous work [K.A. Meissner and H. Nicolai, Eur. Phys. J. C {\bf 84}, 269 (2024)], two of the present authors have suggested possible experimental ways to search for stable supermassive particles with electric charges of $\cO(1)$ in upcoming underground experiments, in particular the new Jiangmen Underground Neutrino Observatory (JUNO) experiment. In the current paper, we present a detailed analysis of the specific signature of such gravitino-induced events for the JUNO detector and for upcoming liquid argon detectors like DUNE (Deep Underground Neutrino Experiment). The proposed method of detection relies on the ``glow'' produced by photons during the passage of such particles through the detector liquid, which would last for about a few to a few hundred microseconds depending on its velocity and the track. The cross sections for electronic excitation of the main component of the scintillator liquid, namely linear alkylbenzene (LAB), by the passing gravitino are evaluated using quantum-chemical methods. The results show that, if such particles exist, the resulting signals would lead to a unique and unmistakable signature, for which we present event simulations as they would be seen by the JUNO or DUNE photomultipliers. Our analysis brings together two very different research areas, namely fundamental particles physics and the search for a fundamental theory on the one hand, and methods of advanced quantum chemistry on the other.
title Signatures of supermassive charged gravitinos in liquid scintillator detectors
topic High Energy Physics - Phenomenology
High Energy Physics - Theory
Chemical Physics
url https://arxiv.org/abs/2407.04883