Evidence for a spin-quartet of nucleon resonances at 2 GeV

被引：18

作者：

Anisovich, A. V. ^{[1
,2
]}

Klempt, E. ^{[1
]}

Nikonov, V. A. ^{[1
,2
]}

Sarantsev, A. V. ^{[1
,2
]}

Thoma, U. ^{[1
]}

机构：

[1] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, Bonn, Germany

[2] Petersburg Nucl Phys Inst, Gatchina, Russia

来源：

PHYSICS LETTERS B | 2012年 / 711卷 / 02期

关键词：

PARTIAL-WAVE ANALYSIS; DIQUARK SYSTEMATICS; BARYON RESONANCES; MEV-C; PHOTOPRODUCTION; RESTORATION; SYMMETRY; SPECTRUM; STATES; MODEL;

D O I：

10.1016/j.physletb.2012.03.066

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Results from a multichannel partial wave analysis of elastic and inelastic pi N and gamma N induced reactions are presented. The analysis evidences the existence of a spin-quartet of nucleon resonances with total angular momenta J(P) = 1/2(+), ... , 7/2(+). All states fall into a +/-130 MeV mass gap centered at 1.97 GeV. The spin quartet is at variance with S-wave diquark configurations required in classical diquark models. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：167 / 172

页数：6

共 35 条

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Sarantsev, A. V.
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Thoma, U.
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