轻-重四夸克的质谱

IF 1.4 4区物理与天体物理 Q3 PHYSICS, NUCLEAR

International Journal of Modern Physics a Pub Date : 2023-10-01 DOI:10.1142/s0217751x23410075

Rohit Tiwari, Juhi Oudichhya, Ajay Kumar Rai

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引用次数: 1

摘要

轻质四夸克的质谱[公式:见文](公式:见文])是在具有单胶子交换和限制势的非相对论性双夸克模型中计算的。在重夸克模型中，[公式:见文]状态被认为分别由反三重态和三重态颜色构型的轻重双夸克([公式:见文])和反重夸克[公式:见文]构成。计算粲介子的质量是为了拟合用于创建四夸克质量的模型参数，从而提高模型的可靠性。四夸克态的质量在3.8-4.7 GeV范围内，这与实验报道的类charmonium态是一致的。特别地，在实验中发现的四夸克[公式:见文]、[公式:见文]和[公式:见文]都可以用我们的模型来描述。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Mass-Spectra of Light-Heavy Tetraquarks

The mass spectra of light-heavy tetraquarks [Formula: see text] ([Formula: see text]) are computed in a nonrelativistic diquark model with one-gluon exchange plus confining potential. In the diquark model, a [Formula: see text] state is regarded to be made of a light-heavy diquark ([Formula: see text]) and an antidiquark [Formula: see text] in antitriplet and triplet color configuration, respectively. The masses of charm mesons were calculated in order to fit the model parameters used to create the masses of tetraquarks and therefore enhance the model’s reliability. The masses of [Formula: see text] tetra-quark states are determined to be in the range of 3.8–4.7[Formula: see text]GeV, which is consistent with the experimentally reported charmonium-like states. In particular, the [Formula: see text], [Formula: see text] and [Formula: see text] tetraquarks, which have been seen experimentally, may all be described by our model.

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来源期刊

International Journal of Modern Physics a 物理-物理：核物理

CiteScore

3.00

自引率

12.50%

发文量

283

审稿时长

3 months

期刊介绍： Started in 1986, IJMPA has gained international repute as a high-quality scientific journal. It consists of important review articles and original papers covering the latest research developments in Particles and Fields, and selected topics intersecting with Gravitation and Cosmology. The journal also features articles of long-standing value and importance which can be vital to research into new unexplored areas.