Analytic continuation of nucleon electromagnetic form factors in the time-like region

被引：2

作者：

Alberto, Pedro ^{[1
]}

Drago, Alessandro ^{[2
,3
]}

Mangoni, Alessio ^{[4
]}

Moretti, Simone ^{[5
]}

Pacetti, Simone ^{[4
,6
]}

机构：

[1] Univ Coimbra, Phys Dept, CFisUC, Coimbra, Portugal

[2] Univ Ferrara, Dipartimento Fis & Sci Terra, Ferrara, Italy

[3] INFN Sez Ferrara, Ferrara, Italy

[4] INFN Sez Ferrara, Perugia, Italy

[5] Univ Konstanz, Fachbereich Phys, D-78457 Constance, Germany

[6] Univ Perugia, Dipartimento Fis & Geol, Perugia, Italy

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2021年 / 48卷 / 08期

关键词：

analytic continuation; Skyrme model; nucleon form factors; CHIRAL SOLITON MODEL; PROTON; SCATTERING; E(+)E(-); SPACE;

D O I：

10.1088/1361-6471/abfbc2

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 possibility to compute nucleon electromagnetic form factors in the time-like region by analytic continuation of their space-like expressions, obtained in the framework of a generic model of nucleons, has been explored. We have developed a procedure to analytically solve Fourier transforms of the nucleon electromagnetic current and hence to obtain form factors defined in all kinematic regions and fulfilling the first-principles requirements of analyticity and unitarity. The results obtained in the particular case of the Skyrme model are discussed and compared to data, both in the space-like and time-like region.

引用

页数：57

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