Radiation widths Γγ of (310 ± 20), (312 ± 12), and (340 ± 130) meV were found for 55Mn(n, γ) resonances at 337, 1099, and 2327 eV, respectively. A fourth resonance was found at 1658 eV, with gΓnΓγ/Γ = (7.6 ± 0.3) meV.