Analysis of the Q Q (Q)over-bar (Q)over-bar tetraquark states with QCD sum rules

被引：0
|
作者：
Wang, Zhi-Gang [1 ]
机构：
[1] North China Elect Power Univ, Dept Phys, Baoding 071003, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL C | 2017年 / 77卷 / 07期
关键词：
J/PSI-PAIR PRODUCTION; RESONANCE PHYSICS; PP COLLISIONS; VECTOR; DECAY; Z(B)(10610); MASSES; SCALAR;
D O I：
10.1140/epjc/s10052-017-4997-0
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：
In this article, we study the J(PC) = 0(++) and 2(++) Q Q (Q) over bar (Q) over bar tetraquark states with the QCD sum rules, and we obtain the predictions M-X(c c (c) over bar (c) over bar 0(++) = 5.99 +/- 0.08 GeV, M-X(c c (c) over bar (c) over bar, 2(++)) = 6.09 +/- 0.08 GeV, M-X(b b (b) over bar (b) over bar, 0(++) = 18.84 +/- 0.09 GeV M-X(b b (b) over bar (b) over bar, 2(++) = 18.85 +/- 0.09 GeV which can be confronted to the experimental data in the future. Furthermore, we illustrate that the diquark-antidiquark type tetraquark state can be taken as a special superposition of a series of meson-meson pairs and that it embodies the net effects.
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页数：12
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