Evidence for narrow baryon resonances in inelastic pp scattering

被引：21

作者：

Tatischeff, B ^{[1
]}

Yonnet, J ^{[1
]}

Willis, N ^{[1
]}

Boivin, M ^{[1
]}

Comets, MP ^{[1
]}

Courtat, P ^{[1
]}

Gacougnolle, R ^{[1
]}

LeBronec, Y ^{[1
]}

Loireleux, E ^{[1
]}

Reide, F ^{[1
]}

机构：

[1] CEA, DSM, CNRS, IN2P3, LAB NATL SATURNE, F-91191 GIF SUR YVETTE, FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.79.601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The reaction pp --> p pi(+)N has been studied at three energies (T-p = 1520, 1805, and 2100 MeV) and six angles from 0 degrees up to 17 degrees (laboratory). Several narrow states have been observed in missing mass spectra at 1004, 1044, and 1094 MeV. Their widths are typically 1 order of magnitude smaller than the widths of N* or Delta. Possible biases are discussed. These masses are in good agreement with those calculated within a simple phenomenological mass formula based on color magnetic interaction between two colored quark clusters.

引用

页码：601 / 604

页数：4

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