\(\mathbf{NN}\)相互作用双重子模型中氘核的电磁形状因子

IF 0.4 4区 物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY
M. N. Platonova, I. T. Obukhovsky
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引用次数: 0

摘要

在核力的双重子模型中计算了氘核的电磁形态因子,该模型基于\(NN\)碰撞中六夸克袋(双重子)形成的共振机制。计算考虑了单核子电流(脉冲近似)和由中间双重子形成引起的附加贡献。2002年和2022年的两个版本的双重子模型被用于形状因子的计算。结果表明,两种模型都能很好地再现动量传递区\(Q<0.8\) GeV/ \(c\)内所有三种氘核形式因子的实验数据。在更高的\(Q\)上,不同版本模型的预测出现分歧,一个版本(2002年)提供了更好的磁性形状因子描述,另一个版本(2022年)更好地描述了电荷形状因子。讨论了观察到的大动量传递理论计算与实验数据之间存在差异的可能原因。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Electromagnetic Form Factors of the Deuteron in the Dibaryon Model of the \(\mathbf{NN}\) Interaction

Electromagnetic Form Factors of the Deuteron in the Dibaryon Model of the \(\mathbf{NN}\) Interaction

The electromagnetic form factors of the deuteron have been calculated within the dibaryon model for nuclear forces, which is based on the resonance mechanism of six-quark bag (dibaryon) formation in \(NN\) collisions. The calculations take into account both single-nucleon currents (impulse approximation) and additional contributions induced by the formation of an intermediate dibaryon. Two versions of the dibaryon model, from 2002 and 2022, have been used for the form factor calculations. It is shown that both versions of the model reproduce the experimental data well for all three deuteron form factors in the momentum transfer region \(Q<0.8\) GeV/\(c\). At higher \(Q\), the predictions of the different versions of the model diverge, with one version (2002) providing a better description of the magnetic form factor and the other (2022) better describing the charge form factor. Possible reasons for the observed discrepancy between theoretical calculations and experimental data for large momentum transfers are discussed.

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来源期刊
Moscow University Physics Bulletin
Moscow University Physics Bulletin PHYSICS, MULTIDISCIPLINARY-
CiteScore
0.70
自引率
0.00%
发文量
129
审稿时长
6-12 weeks
期刊介绍: Moscow University Physics Bulletin publishes original papers (reviews, articles, and brief communications) in the following fields of experimental and theoretical physics: theoretical and mathematical physics; physics of nuclei and elementary particles; radiophysics, electronics, acoustics; optics and spectroscopy; laser physics; condensed matter physics; chemical physics, physical kinetics, and plasma physics; biophysics and medical physics; astronomy, astrophysics, and cosmology; physics of the Earth’s, atmosphere, and hydrosphere.
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