2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/151590Closed expressions are derived for the resonance widths and Coulomb blockade conductance peak heights in quantum dots for the crossover regime between conserved and broken time-reversal symmetry. The results hold for leads with any number of possibly correlated and inequivalent channels. Our analytic predictions are in good agreement with simulations of both random matrices and a chaotic billiard with a magnetic flux line.10 pages, RevTex, 3 Postscript figuresCondensed MatterChaotic Dynamicstext