Properties of nucleon momentum distributions in nuclei at finite temperatures

Abstract

The nucleon momentum distributionn(k) in nuclei is investigated in the framework of the coherent density fluctuation model extended to finite temperatures. It is shown that the well-known zero-temperature mean-field approximation fails to explain the high-momentum region ofn(k) where short-range and tensor correlations are important. The temperature dependence of the deep hole nuclear state spectral functions is also considered in the model.