Charm tetraquarks in a non-relativistic quark model

被引：2

作者：

Debastiani, V. R. ^{[1
]}

Navarra, F. S. ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo, SP, Brazil

来源：

XXXVII BRAZILIAN MEETING ON NUCLEAR PHYSICS | 2015年 / 630卷

关键词：

QCD SUM-RULES; MULTIQUARK HADRONS; BOUND-STATES; MOLECULES; MESONS;

D O I：

10.1088/1742-6596/630/1/012047

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：

New charmonium states have been discovered since 2003. Although some of them can be explained as c (c) over bar states, others do not fit in the predictions of that spectrum. Exotic models have been proposed to explain these new states, regarded now as multiquark states in the charm sector. In this work we focus on two of the most discussed models: the tetraquark, which consists on a diquark-antidiquark system, and the meson molecule, which is a weakly bound state of two mesons. We have developed a non-relativistic approach to study exotic heavy hadron spectroscopy, where the four body system is considered as three subsequent two-body systems. We solve numerically the Schroedinger equation using an effective Cornell-like potential to model the two-body interaction in each step of the tetraquark calculation, and a Yukawa-like potential to describe the meson molecule.

引用

页数：10

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