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 (τinvN≥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.

Neutral hadrons disappearing into the darkness

BARDUCCI, DAVIDE;FABBRICHESI, MARCO;Gabrielli, E.
2018-01-01

Abstract

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 (τinvN≥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.
2018
Pubblicato
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.98.035049
File in questo prodotto:
File Dimensione Formato  
PRD_98.pdf

accesso aperto

Descrizione: articolo principale
Tipologia: Documento in Versione Editoriale
Licenza: Creative commons
Dimensione 364.89 kB
Formato Adobe PDF
364.89 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2940763
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 41
  • ???jsp.display-item.citation.isi??? 35
social impact