  In this work, we consider the dynamics of the self-induced collapse of the
tachyon wave function in inflationary scenarios. We analyze the modifications
on the power spectrum by considering the \beta-exponential potential, whose
parameters have updated constraints by the Planck 2018 baseline data. Moreover,
we show that for this kind of potential, just for a narrow range of
\beta-parameter, there is agreement between the theoretical predictions and the
current observational data. Considering the proposal for a collapse scheme that
leads to the modification of Schr\"odinger evolution of the inflaton wave
function from the employment of a Continuous Spontaneous Localization (CSL)
approach, we derive the scalar spectral index and tensor-to-scalar ratio. We
then obtained the constraints on both collapse and \beta-parameters that, in
turn, yield deviations in the n_{s} vs. r plane when compared to the
\beta-exponential potential standard estimate. The CSL scheme applied to
tachyonic inflation driven by a \beta-potential offers an adequate description
of the recent data.
