The isospin strange asymmetry from the chiral effective theory

被引：2

作者：

Trevisan, Luis Augusto ^{[1
]}

Mirez, Carlos ^{[2
]}

机构：

[1] Univ Estadual Ponta Grossa, Dept Math & Stat, Av Carlos Cavalcante 4748, BR-84030900 Ponta Grossa, PR, Brazil

[2] Univ Fed Vale Jequitinhonha & Mucuri, Inst Sci Engn & Technol, Rua Cruzeiro 01, BR-39803371 Teofilo Otoni, MG, Brazil

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2018年 / 33卷 / 14-15期

关键词：

Strange quark; isospin asymmetry; DEEP-INELASTIC SCATTERING; PERTURBATION-THEORY; POLARIZED HE-3; NEUTRON; PROTON;

D O I：

10.1142/S0217751X18500835

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 proposal of the present work is to study the difference between the strange quark antiquark amount in the proton and neutron. For this purpose, the possible nucleon hyperon-kaon fluctuations are analyzed with the effective chiral theory. The small difference of particle masses is shown to be in the origin of this isospin asymmetry. The dependence of the results on the mass cutoff parameter and with the coupling constants is analyzed.

引用

页数：11

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