Meson baryon components in the states of the baryon decuplet

被引：1

作者：

Aceti, F. ^{[1
,2
]}

Dai, L. R. ^{[3
]}

Geng, L. S. ^{[4
,5
]}

Oset, E. ^{[1
,2
]}

Zhang, Y. ^{[3
]}

机构：

[1] Ctr Mixto Univ Valencia CSIC, Inst Invest Paterna, Dept Fis Teor, Valencia 46071, Spain

[2] Ctr Mixto Univ Valencia CSIC, IFIC, Valencia 46071, Spain

[3] Liaoning Normal Univ, Dept Phys, Dalian 116029, Peoples R China

[4] Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China

[5] Beihang Univ, Int Res Ctr Nuclei & Particles Cosmos, Beijing 100191, Peoples R China

来源：

MENU 2013 - 13TH INTERNATIONAL CONFERENCE MESON-NUCLEON PHYSICS AND THE STRUCTURE OF THE NUCLEON | 2014年 / 73卷

关键词：

D O I：

10.1051/epjconf/20147304009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We extend theWeinberg compositeness condition to partial waves of L = 1 and resonant states to determine the weight of meson-baryon component in the J(P) = 3/2(+) baryon decuplet. We obtain an appreciable weight of pi N in the Delta(1232) wave function, of the order of 60 % and we also show that, as we go to higher energies in the members of the decuplet, the weights of meson-baryon component decrease and they already show a dominant part for a genuine component in the wave function. We interpret the meaning of the Weinberg sum-rule extended to complex energies.

引用

页数：4

共 5 条

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