Neutron radiative capture cross section for sodium with covariance analysis A. Gandhi, Aman Sharma, Rebecca Pachuau, B. Lalremruata, Mayur Mehta, Prashant N. Patil, S. V. Suryanarayana, L. S. Danu, B. K. Nayak and A. Kumar Eur. Phys. J. A, 57 1 (2021) 1 Published online: 01 January 2021 DOI: 10.1140/epja/s10050-020-00322-6