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arXiv 1807.06503hep-phhep-exhep-lat
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光锥QCD中可能的粲奇异五夸克态的电磁多极矩

The electromagnetic multipole moments of the possible charm-strange pentaquarks in light-cone QCD

K. Azizi, U. Ozdem

摘要:

在光锥QCD求和规则的框架下,利用光子分布振幅研究了可能的粲奇异五夸克态的电磁性质。特别是,通过计算相应的电磁形状因子定义的辐射跃迁考虑我们估计的磁偶极子和电四极矩的五夸克系统的魅力,反奇异和三个轻夸克。我们观察到,磁偶极矩的值是相当大的,然而,四极矩是非常小的。任何未来的电磁参数的测量正在考虑和比较所获得的数据与理论预测可以揭示夸克胶子组织以及五夸克的性质。

英文摘要:

We investigate the electromagnetic properties of possible charm-strange pentaquarks in the framework of the light-cone QCD sum rule using the photon distribution amplitudes. In particular, by calculating the corresponding electromagnetic form factors defining the radiative transitions under consideration we estimate the magnetic dipole and electric quadrupole moments of the pentaquark systems of a charm, an anti-strange and three light quarks. We observe that the values of magnetic dipole moments are considerably large, however, the quadrupole moments are very small. Any future measurements of the electromagnetic parameters under consideration and comparison of the obtained data with the theoretical predictions can shed light on the quark-gluon organization as well as the nature of the pentaquarks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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