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

被引：112

作者：

Arzumanov, S ^{[1
]}

Bondarenko, L

Chernavsky, S

Drexel, W

Fomin, A

Geltenbort, P

Morozov, V

Panin, Y

Pendlebury, J

Schreckenbach, K

机构：

[1] RRC Kurchatov Inst, Moscow 123182, Russia

[2] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France

[3] Univ Sussex, Brighton BN1 9QH, E Sussex, England

[4] Tech Univ Munich, D-85747 Garching, Germany

来源：

PHYSICS LETTERS B | 2000年 / 483卷 / 1-3期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1016/S0370-2693(00)00579-7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The neutron life time tau(n) 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 tau(n)[sec] = 885.4 +/- 0.9(stat) +/- 0.4(syst). (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：15 / 22

页数：8

共 10 条

[1] A measurement of the beta asymmetry A in the decay of free neutrons [J].