Neutron life time value measured by storing ultracold neutrons with detection of inelastically scattered neutrons

Authors
Arzumanov, S Bondarenko, L Chernavsky, S Drexel, W Fomin, A Geltenbort, P Morozov, V Panin, Y Pendlebury, J Schreckenbach, K
Citation
S. Arzumanov et al., Neutron life time value measured by storing ultracold neutrons with detection of inelastically scattered neutrons, PHYS LETT B, 483(1-3), 2000, pp. 15-22
Citations number
10
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
03702693 → ACNP
Volume
483
Issue
1-3
Year of publication
2000
Pages
15 - 22
Database
ISI
SICI code
0370-2693(20000615)483:1-3<15:NLTVMB>2.0.ZU;2-Q
Abstract
The neutron life time tau(n) was measured by storage of ultracold neutrons (UCN) in a material bottle covered with Fomblin oil. The inelastically scat tered neutrons were detected by surrounding neutron counters monitoring the UCN losses due to upscattering at the bottle walls. Comparing traps with d ifferent surface to volume ratios the free neutron life time was deduced. C onsistent results for different bottle temperatures yielded tau(n)[sec] = 8 85.4 +/- 0.9(stat) +/- 0.4(syst). (C) 2000 Elsevier Science B.V. All rights reserved.