Excited heavy tetraquarks with hidden charm

被引：130

作者：

Ebert, D. ^{[1
,2
]}

Faustov, R. N. ^{[3
]}

Galkin, V. O. ^{[3
]}

机构：

[1] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia

[2] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

[3] Russian Acad Sci, Dorodnicyn Comp Ctr, Moscow 119991, Russia

来源：

EUROPEAN PHYSICAL JOURNAL C | 2008年 / 58卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1140/epjc/s10052-008-0754-8

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The masses of the excited heavy tetraquarks with hidden charm are calculated within the relativistic diquark-antidiquark picture. The dynamics of the light quark in a heavy-light diquark is treated completely relativistically. The diquark structure is taken into account by calculating the diquark-gluon form factor. New experimental data on charmonium-like states above open charm threshold are discussed. The obtained results indicate that X(3872), Y(4260), Y(4360), Z(4248), Z(4433) and Y(4660) could be tetraquark states with hidden charm.

引用

页码：399 / 405

页数：7

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