Anomalous Beta Spectrum ofIn114(1+→0+)

Abstract

We analyze the experimental beta-shape factor of ${\mathrm{In}}^{114}$ (${1}^{+}$ \ensuremath{\rightarrow} ${0}^{+}$) as reported to be represented by ($1+\frac{b}{W}$). We find a reasonable fit to the experimental shape factor of the Langer group by considering the contribution of the second-order effects within the framework of the $V\ensuremath{-}A$ theory. The less anomalous beta-shape factor due to Daniel and Panussi can also be explained. The effects arising from a consideration of the finite nuclear size and the finite de Broglie wavelength were included in our calculations.