2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/195517High-energy neutrinos may resonate with relic background neutralinos to form short-lived sneutrinos. In some circumstances, the decay chain that leads back to the lightest supersymmetric particle would yield few-GeV gamma rays or charged-particle signals. Although resonant coannihilation would occur at an appreciable rate in our galaxy, the signal in any foreseeable detector is unobservably small.5 pages, 3 figures, uses RevTeX 4AstrophysicsHigh Energy Physics - Phenomenologytext