OBSERVATION OF PPIPI DECAY MODE OF N1/2'(1400) RESONANCE IN PP INTERACTIONS AT 22 GEV/C'

被引：29
|
作者：
JESPERSEN, RA
KANG, YW
KERNAN, WJ
LEACOCK, RA
RHODE, JI
SCHALK, TL
SCHROEDER, LS
机构：
[1] Institute for Atomic Research, Department of Physics, Iowa State University, Ames
[2] National Accelerator Laboratory, Oakbrook
来源：
PHYSICAL REVIEW LETTERS | 1968年 / 21卷 / 18期
关键词：
D O I：
10.1103/PhysRevLett.21.1368
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Approximately 12 000 four-pronged interactions of 22-GeV/c protons in a hydrogen bubble chamber have been measured. In a sample of 1234 ppπ+π- events the final state is dominated by Δ++(1236) production. Approximately 120 of these events are attributed to the pπ+π- decay of a resonant state with mass 1443 ± 15 MeV and width 100 ± 25 MeV identified with the N12*(1400) resonance. There is also strong evidence for a pππ enhancement with a central mass value of 1693 MeV. © 1968 The American Physical Society.
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页码：1368 / +
页数：1
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