Author/Authors :
S Arzumanov، نويسنده , , L Bondarenko، نويسنده , , S Chernyavsky، نويسنده , , W Drexel، نويسنده , , A Fomin، نويسنده , , P Geltenbort، نويسنده , , V Morozov، نويسنده , , Yu Panin، نويسنده , , J Pendlebury، نويسنده , , K Schreckenbach، نويسنده ,
Abstract :
The neutron life time τn was measured by storage of ultracold neutrons (UCN) in a material bottle covered with Fomblin oil. The inelastically scattered neutrons were detected by surrounding neutron counters monitoring the UCN losses due to upscattering at the bottle walls. Comparing traps with different surface to volume ratios the free neutron life time was deduced. Consistent results for different bottle temperatures yielded τnsec=885.4±0.9stat±0.4syst.
