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.

引用

页码：1368 / +

页数：1

共 29 条

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