@misc{10481/93875,
year = {2024},
month = {4},
url = {https://hdl.handle.net/10481/93875},
abstract = {Dark matter particles could be superheavy, provided their lifetime is much longer than the age of the
Universe. Using the sensitivity of the Pierre Auger Observatory to ultrahigh energy neutrinos and photons,
we constrain a specific extension of the Standard Model of particle physics that meets the lifetime
requirement for a superheavy particle by coupling it to a sector of ultralight sterile neutrinos. Our results
show that, for a typical dark coupling constant of 0.1, the mixing angle θm between active and sterile
neutrinos must satisfy, roughly, θm ≲ 1.5 × 10−6(MX/109 GeV)−2 for a mass MX of the dark-matter
particle between 108 GeV and 1011 GeV.},
organization = {Ministerio de Economía, Industria y Competitividad (FPA2017-85114-P and PID2019–104676GB-C32)},
organization = {Xunta de Galicia (ED431C 2017/07)},
organization = {Junta de Andalucía (SOMM17/6104/UGR, P18-FR-4314) Feder Funds},
organization = {RENATA Red Nacional Temática de Astropartículas (FPA2015-68783-REDT)},
organization = {María de Maeztu Unit of Excellence (MDM-2016-0692)},
organization = {National Science
Foundation, Grant No. 0450696},
organization = {The Grainger Foundation},
organization = {Marie Curie-IRSES/EPLANET},
organization = {European Particle Physics
Latin American Network},
organization = {UNESCO},
publisher = {American Physical Society},
title = {Constraints on metastable superheavy dark matter coupled to sterile neutrinos with the Pierre Auger Observatory},
doi = {10.1103/PhysRevD.109.L081101},
author = {Abdul Halim, A. and Bueno Villar, Antonio and Pierre Auger Collaboration, /},
}