Nuclear response functions for the N-N*(1440) transition

被引：18

作者：

Alvarez-Ruso, L ^{[1
]}

Barbaro, MB

Donnelly, TW

Molinari, A

机构：

[1] Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany

[2] Univ Turin, Dipartimento Fis Teor, I-10125 Turin, Italy

[3] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy

[4] MIT, Ctr Theoret Phys, Nucl Sci Lab, Cambridge, MA 02139 USA

[5] MIT, Dept Phys, Cambridge, MA 02139 USA

来源：

NUCLEAR PHYSICS A | 2003年 / 724卷 / 1-2期

关键词：

inclusive electron scattering; response functions; roper and delta resonances; relativistic Fermi gas; scaling; Coulomb sum rule;

D O I：

10.1016/S0375-9474(03)01480-5

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：

Parity-conserving and -violating response functions are computed for the inclusive electroexcitation of the N* (1440) (Roper) resonance in nuclear matter modeled as a relativistic Fermi gas. Using various empirical parameterizations and theoretical models of the N-N* (1440) transition form factors, the sensitivity of the response functions to details of the structure of the Roper resonance is investigated. The possibility of disentangling this resonance from the contribution of Delta electroproduction in nuclei is addressed. Finally, the contributions of the Roper resonance to the longitudinal scaling function and to the Coulomb sum rule are also explored. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：157 / 177

页数：21

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