NEW ATTEMPT TO DETERMINE THE FREE NEUTRON LIFE TIME BY IN-BEAM DETECTION OF DECAY ELECTRONS P. Liaud, K. Schreckenbach, J. Chauvin, P. de Saintignon et A. Bussière J. Phys. Colloques, 45 C3 (1984) C3-37-C3-40 DOI: 10.1051/jphyscol:1984308