Magnetic moments of JP=3/2+decuplet baryons using effective quark masses in a chiral constituent quark model

被引：25

作者：

Girdhar, Aarti ^{[1
,2
]}

Dahiya, Harleen ^{[1
]}

Randhawa, Monika ^{[3
]}

机构：

[1] Dr BR Ambedkar Natl Inst Technol, Dept Phys, Jalandhar 144011, India

[2] Harish Chandra Res Inst, Reg Ctr Accelerator Based Particle Phys, Allahabad 211019, Uttar Pradesh, India

[3] Panjab Univ, Univ Inst Engn & Technol, Chandigarh 160014, India

来源：

PHYSICAL REVIEW D | 2015年 / 92卷 / 03期

关键词：

HARMONIC-OSCILLATOR THEORY; SPIN STRUCTURE-FUNCTION; QCD SUM-RULES; EXCHANGE CURRENTS; ELECTROMAGNETIC PROPERTIES; PROTON-SCATTERING; SYMMETRY-BREAKING; FLAVOR ASYMMETRY; GROUND-STATE; FORM-FACTORS;

D O I：

10.1103/PhysRevD.92.033012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The magnetic moments of J(P) = 3/2+ decuplet baryons have been calculated in the chiral constituent quark model (chi CQM) with explicit results for the contribution coming from the valence quark polarizations, sea quark polarizations, and their orbital angular momentum. Since the J(P) = 3/2+ decuplet baryons have short lifetimes, the experimental information about them is limited. The chi CQM has important implications for chiral symmetry breaking as well as SU( 3) symmetry breaking since it works in the region between the QCD confinement scale and the chiral symmetry breaking scale. The predictions in the model not only give a satisfactory fit when compared with the experimental data but also show improvement over the other models. The effect of the confinement on quark masses has also been discussed in detail and the results of chi CQM are found to improve further with the inclusion of effective quark masses.

引用

页数：10

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