Nucleon resonances in AdS/QCD

被引：51

作者：

Gutsche, Thomas ^{[1
]}

Lyubovitskij, Valery E. ^{[1
]}

Schmidt, Ivan ^{[2
,3
]}

Vega, Alfredo ^{[4
]}

机构：

[1] Univ Tubingen, Inst Theoret Phys, Kepler Ctr Astro & Particle Phys, D-72076 Tubingen, Germany

[2] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile

[3] Univ Tecn Federico Santa Maria, CCTVal, Valparaiso, Chile

[4] Univ Valparaiso, Dept Fis & Astron, Valparaiso, Chile

来源：

PHYSICAL REVIEW D | 2013年 / 87卷 / 01期

关键词：

CONSTITUENT QUARK-MODEL; ROPER-RESONANCE; LIGHT-FRONT; GAUGE/GRAVITY DUALITY; BARYON RESONANCES; EXCHANGE CURRENTS; ELECTROPRODUCTION; PHOTOPRODUCTION; PHYSICS; MESON;

D O I：

10.1103/PhysRevD.87.016017

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We describe the electroproduction of the N(1440) Roper resonance in soft-wall anti-de Sitter/quantum chromodynamics. The Roper resonance is identified as the first radially excited state of the nucleon, where higher Fock states in addition to the three-quark (3q) component are included. The main conclusion is that the leading 3q component plays the dominant role in the description of electroproduction properties of this resonance: form factors, helicity amplitudes, and charge densities. The obtained results are in good agreement with the recent results of the CLAS Collaboration at JLab. DOI: 10.1103/PhysRevD.87.016017

引用

页数：11

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