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Neutral Hadrons Disappearing into the Darkness

We study the invisible decay of neutral hadrons in a representative model of the dark sector. The mesons KL and B0 decay into the dark sector with branching rates that can be at the current experimental limits. The neutron decays with a rate that could either explain the neutron lifetime puzzle (alt...

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Detalles Bibliográficos
Autores principales: Barducci, D., Fabbrichesi, M., Gabrielli, E.
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.98.035049
http://cds.cern.ch/record/2630204
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author Barducci, D.
Fabbrichesi, M.
Gabrielli, E.
author_facet Barducci, D.
Fabbrichesi, M.
Gabrielli, E.
author_sort Barducci, D.
collection CERN
description We study the invisible decay of neutral hadrons in a representative model of the dark sector. The mesons KL and B0 decay into the dark sector with branching rates that can be at the current experimental limits. The neutron decays with a rate that could either explain the neutron lifetime puzzle (although only for an extreme choice of the parameters and a fine-tuned value of the masses) or be just above the current limit of its invisible decay (τNinv≳1029  years) if kinematically allowed. These invisible decays of ordinary matter provide a novel and promising window into new physics that should be vigorously pursued.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
record_format invenio
spelling cern-26302042023-03-14T19:22:27Zdoi:10.1103/PhysRevD.98.035049http://cds.cern.ch/record/2630204engBarducci, D.Fabbrichesi, M.Gabrielli, E.Neutral Hadrons Disappearing into the Darknesshep-exParticle Physics - Experimenthep-phParticle Physics - PhenomenologyWe study the invisible decay of neutral hadrons in a representative model of the dark sector. The mesons KL and B0 decay into the dark sector with branching rates that can be at the current experimental limits. The neutron decays with a rate that could either explain the neutron lifetime puzzle (although only for an extreme choice of the parameters and a fine-tuned value of the masses) or be just above the current limit of its invisible decay (τNinv≳1029  years) if kinematically allowed. These invisible decays of ordinary matter provide a novel and promising window into new physics that should be vigorously pursued.We study the invisible decay of neutral hadrons in a representative model of the dark sector. The mesons $K_L$ and $B^0$ decay into the dark sector with branching rates that can be at the current experimental limits. The neutron decays with a rate that could either explain the neutron lifetime puzzle (although only for an extreme choice of the parameters and a fine tuned value of the masses) or be just above the current limit of its invisible decay ($\tau_N^{\rm inv} \ge 10^{29}$ years) if kinematically allowed. These invisible decays of ordinary matter provide a novel and promising window into new physics that should be vigorously pursued.arXiv:1806.05678oai:cds.cern.ch:26302042018-06-14
spellingShingle hep-ex
Particle Physics - Experiment
hep-ph
Particle Physics - Phenomenology
Barducci, D.
Fabbrichesi, M.
Gabrielli, E.
Neutral Hadrons Disappearing into the Darkness
title Neutral Hadrons Disappearing into the Darkness
title_full Neutral Hadrons Disappearing into the Darkness
title_fullStr Neutral Hadrons Disappearing into the Darkness
title_full_unstemmed Neutral Hadrons Disappearing into the Darkness
title_short Neutral Hadrons Disappearing into the Darkness
title_sort neutral hadrons disappearing into the darkness
topic hep-ex
Particle Physics - Experiment
hep-ph
Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.98.035049
http://cds.cern.ch/record/2630204
work_keys_str_mv AT barduccid neutralhadronsdisappearingintothedarkness
AT fabbrichesim neutralhadronsdisappearingintothedarkness
AT gabriellie neutralhadronsdisappearingintothedarkness