NEUTRON RADII DETERMINATIONS FROM THE RATIO OF PI- ELASTIC-SCATTERING FROM C-12,C-13 AND O-16,O-18

被引:58
作者
JOHNSON, RR
MASTERSON, T
BASSALLECK, B
GYLES, W
MARKS, T
ERDMAN, KL
THOMAS, AW
GILL, DR
ROST, E
KRAUSHAAR, JJ
ALSTER, J
SABEV, C
ARVIEUX, J
KRELL, M
机构
[1] TRIUMF,VANCOUVER V6T 1W5,BC,CANADA
[2] UNIV COLORADO,BOULDER,CO 80309
[3] TEL AVIV UNIV,DEPT PHYS,RAMAT AVIV,ISRAEL
[4] CERN,CH-1211 GENEVA 23,SWITZERLAND
[5] INST NATL PHYS NUCL & PHYS PARTICULES,INST SCI NUCL,F-38044 GRENOBLE,FRANCE
[6] UNIV SHERBROOKE,SHERBROOKE J1K 2R1,QUEBEC,CANADA
关键词
D O I
10.1103/PhysRevLett.43.844
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Differential elastic cross-section ratios and absolute cross sections have been measured for C12,13 at 29.2-and 49.5-MeV average π- energy and for O16,18 at 29.2 MeV. Range telescopes detected the scattered pions. The ratio data were compared with different optical-potential calculations to extract neutron radii of 2.35 ± 0.03 fm for C13 and 2.81 ± 0.03 fm for O18, relative to the neutron radii of C12 (2.31) and O16 (2.60), respectively. Our studies indicate little sensitivity to the optical model used. © 1979 The American Physical Society.
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收藏
页码:844 / 847
页数:4
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