2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43927In this paper, we study the tritium $β-$decay in the field theory of the superluminal (faster-than-light) neutrino. We show how the unstable transient modes with $\vec{q} \cdot \vec{q} < m_ν^2$ lead to an excess of events at the endpoint.9 pages, 2 figuresHigh Energy Physics - Phenomenologytext