2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/179643We show that single photon searches at LEP constrain the tau neutrino magnetic moment to be less than ${\cal O}(10^{-6})~μ_B$. This bound is competitive with low energy ($s\simeq (30~GeV)^2$) single photon searches.5 pgs. LaTeX, one reference fixed in revised version, JHU-TIPAC-940004, UM-TH-94-16High Energy Physics - Phenomenologytext