Measurements of the Λ hyperon lifetime in heavy hypernuclei at COSY-Julich

被引：0
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作者：
Zychor, I [1 ]
Borgs, W
Cassing, W
Hartmann, M
Jarczyk, L
Kamys, B
Koch, HR
Kulessa, P
Maier, R
Matoba, M
Ohm, H
Prasuhn, D
Pysz, K
Rudy, Z
Schult, OWB
Stein, HJ
Ströher, H
Strzalkowski, A
Uozumi, Y
机构：
[1] Soltan Inst Nucl Studies, PL-05400 Otwock, Poland
[2] Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany
[3] Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany
[4] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland
[5] Kyushu Univ, Dept Nucl Engn, Fukuoka 812, Japan
[6] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
来源：
ACTA PHYSICA POLONICA B | 2000年 / 31卷 / 02期
关键词：
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
At COSY-Julich the lifetime of very heavy hypernuclei, produced in the reactions induced by protons, was measured for non-mesonic Lambda decay by the recoil shadow method. The measurements were performed at proton energies of 1.5 and 1.9 GeV and the background was determined at 1.0 GeV. The Lambda hyperon lifetime of (211 +/- 30) ps was obtained in the p+U reactions and (160 +/- 15) ps in the p+Bi reactions, respectively.
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页码：405 / 409
页数：5
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