Half-life and fT1/2 value for the bare triton

Experimental and theoretical data on the atomic effects accompanying triton beta decay have been used to derive the bare triton half-life both for the case where only electrons of the continuous spectrum are formed and for the case where decay to bound states in the He-3(+) ion is taken into account, and to calculate the comparative half-life which proved to be fT(1/2) = 1129.6 +/- 3.0 s. Estimate of the ratio of axial-vector-to-vector weak coupling constants for the triton beta decay (G(A)/G(V))(t) = -1.2646 +/- 0.0035 has been obtained from the relation connecting G(A)/G(V) and fT(1/2). (c) 2005 Elsevier B.V. All rights reserved.