超中心夸克模型中重子的研究

IF 1.5 4区物理与天体物理 Q3 PHYSICS, PARTICLES & FIELDS

Advances in High Energy Physics Pub Date : 2021-10-21 DOI:10.1155/2021/7713697

N. Tazimi, P. Sadeghi Alavijeh

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引用次数: 0

摘要

在本研究中，我们根据超中心组成夸克模型在组态空间中将重子视为三体束缚系统，并求解了三体Klein-Gordon方程。然后，我们分析了微扰自旋依赖和同位自旋依赖的相互作用效应。为了找到解析解，我们利用屏蔽势，计算了一些重子的本征函数和本征值。我们考虑底重子和粲重子的独占半光子衰变，并应用Isgur-Wise函数的微分衰变宽度，得到了某些半光子衰变的速率。结果表明，与以往的研究相比，该方法得到了较好的改进，与实验数据吻合较好。

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Investigation of Baryons in the Hypercentral Quark Model

In the present study, we consider baryons as three-body bound systems according to the hypercentral constituent quark model in configuration space and solve the three-body Klein-Gordon equation. Then, we analyze perturbative spin-dependent and isospin-dependent interaction effects. To find the analytical solution, we use screened potential and calculate the eigenfunctions and eigenvalues of some baryons. We consider exclusive semileptonic decays of bottom and charm baryons and apply the differential decay width with the Isgur-Wise function and arrive at the rates for some semileptonic baryon decays. The results prove more enhanced compared to recent works and comply well with the experimental data.

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来源期刊

Advances in High Energy Physics PHYSICS, PARTICLES & FIELDS-

CiteScore

3.40

自引率

5.90%

发文量

审稿时长

6-12 weeks

期刊介绍： Advances in High Energy Physics publishes the results of theoretical and experimental research on the nature of, and interaction between, energy and matter. Considering both original research and focussed review articles, the journal welcomes submissions from small research groups and large consortia alike.