The muon capture rate of 48Ca

被引:13
|
作者
Fynbo, HOU [1 ]
Egorov, V
Brudanin, V
Chirtchenko, A
Deutsch, J
Lebedev, V
Petitjean, C
Riisager, K
Vassiliev, S
机构
[1] Aarhus Univ, Dept Phys & Astron, DK-8000 Aarhus C, Denmark
[2] Joint Inst Nucl Res, Dubna 141980, Russia
[3] Univ Catholique Louvain, B-1348 Louvain, Belgium
[4] Russian Res Ctr, SV Kurashov Med Inst, Moscow 123182, Russia
[5] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
关键词
Ca-48(mu(-); nu n); E-mu at rest; measured E-gamma and time distribution; deduced nuclear muon capture rate; enriched target;
D O I
10.1016/S0375-9474(03)01539-2
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The muon nuclear capture rate on Ca-48 has been measured to be 1.214(8) x 10(6) s(-1) at the PSI, Switzerland. An isotopically enriched target was used, and the sensitivity increased further by tagging on known gamma-rays observed following the capture. Possible systematic errors in this procedure are discussed. The muon capture rate is compared to theoretical predictions and the isotopic variation of the capture rate is shown to deviate from the Primakoff estimate. (C) 2003 Elsevier B.V. All rights reserved.
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页码:493 / 501
页数:9
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