STUDY OF HYPERON-NUCLEON INTERACTION IN REACTION K-D-]PI-PLAMBDA AT REST

被引:128
作者
TAN, TH
机构
[1] Stanford Linear Accelerator Center, Stanford University, Stanford
关键词
D O I
10.1103/PhysRevLett.23.395
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A Λp system with high statistics and mass resolution was studied in detail. The broad bump in the low-mass region can be attributed to contribution from both the impulse and final-state-interaction mechanisms. The low-energy Λp scattering parameters are deduced to be a0=-2.0±0.5 and r0=3.0±1.0 F. The higher mass spectrum can be fitted to two Breit-Wigner resonant structures with M1=2128.7±0.2, Γ1=7.0±0.6, and M2=2138.8±0.7, Γ2=9.1±2.4 MeV. Attempts were carried out to understand these peaks via a N final-state-interaction model. © 1969 The American Physical Society.
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页码:395 / &
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