Investigation of Antineutrino Mass Estimate Properties in Idealized Tritium Experiment.

摘要

The paper deals with the influence of errors in assignment of a priori parameters of the tritium experiment idealized model, upon the bias of the estimate vector of searched for parameters (antineutrino mass, spectrum end-point energy, effect-to-background ratio). Results of numerical simulation and consideration of the total covariance matrix indicate strong correlation of estimates and at possible generation of the antineutrino mass, e.g. owing to overestimation of the response function width or its asymmetry degree as well as at underestimation of the probability of the decay into the ground state. Attention is paid to advantages of the method, based on consideration of the covariance matrix. 9 refs.; 4 figs.; 1 tab. (Atomindex citation 19:070714)