Breit-Wigner parameters of the S11(1535) nucleon resonance

被引：2
|
作者：
Balandina, EV [1 ]
Leikin, EM [1 ]
Yudin, NP [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow 119899, Russia
来源：
PHYSICS OF ATOMIC NUCLEI | 2004年 / 67卷 / 07期
关键词：
D O I：
10.1134/1.1777293
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The results of a partial-wave analysis of the angular distributions for the process gammap --> etap over the energy range up to 2 GeV are presented. Reliable estimates of the Breit-Wigner parameters of the S-11 (1535) resonance, as well as the energy dependence of the real and imaginary parts of the electric dipole amplitude E0+ and its phase, are derived from the energy dependence of the regression coefficient a(0)(W). (C) 2004 MAIK "Nauka/Interperiodica".
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页码：1378 / 1384
页数：7
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