Tetraquark states with open flavors

被引：33

作者：

Tang, Liang ^{[1
,3
]}

Qiao, Cong-Feng ^{[2
,3
]}

机构：

[1] Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China

[2] Univ Chinese Acad Sci, Sch Phys, YuQuan Rd 19A, Beijing 100049, Peoples R China

[3] CAS Ctr Excellence Particle Phys, Beijing 100049, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL C | 2016年 / 76卷 / 10期

基金：

中国国家自然科学基金;

关键词：

SUM-RULE CALCULATION; HIDDEN CHARM; RESONANCE PHYSICS; QCD; MASS;

D O I：

10.1140/epjc/s10052-016-4436-7

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 work, we estimate the masses of tetraquark states with four different flavors by virtue of QCD sum rules, in both b and c sectors. We construct four tetraquark currents with , and then we perform an analytic calculation up to dimension eight in the operator product expansion. We keep terms which are linear in the strange quark mass , and in the end we find two possible tetraquark states with masses and GeV. We find that their charmed-partner masses lie in and GeV, respectively, and are hence accessible in experiments like BESIII and Belle.

引用

页数：7

共 32 条

[1]

Abazov V.M., ARXIV160207588HEPEX

[2] Width of the exotic Xb(5568) state through its strong decay to Bs0π+ [J].

Agaev, S. S. ;

Azizi, K. ;

Sundu, H. .

PHYSICAL REVIEW D, 2016, 93 (11)

[3] Mass and decay constant of the newly observed exotic X(5568) state [J].

Agaev, S. S. ;

Azizi, K. ;

Sundu, H. .

PHYSICAL REVIEW D, 2016, 93 (07)

[4]

Agaev S. S., ARXIV160302708HEPPH

[5]

Albuquerque R.M, ARXIV13064671HEPPH

[6] Decoding the X(5568) as a Fully Open-Flavor su(b)over-bar(d)over-bar Tetraquark State [J].

Chen, Wei ;

Chen, Hua-Xing ;

Liu, Xiang ;

Steele, T. G. ;

Zhu, Shi-Lin .

PHYSICAL REVIEW LETTERS, 2016, 117 (02)

[7]

Colangelo P, 2001, AT THE FRONTIER OF PARTICLE PHYSICS, VOLS 1-3, P1496

[8] A QCD sum rule calculation of the X±(5568) → Bs0π± decay width [J].

Dias, J. M. ;

Khemchandani, K. P. ;

Martinez Torres, A. ;

Nielsen, M. ;

Zanetti, C. M. .

PHYSICS LETTERS B, 2016, 758 :235-238

[9] QCD sum rule calculation for the charmonium-like structures in the J/ψφ and J/ψω invariant mass spectra [J].

Finazzo, Stefano I. ;

Nielsen, Marina ;

Liu, Xiang .

PHYSICS LETTERS B, 2011, 701 (01) :101-106

[10] Flavor SU (3) properties of beauty tetraquark states with three different light quarks [J].

He, Xiao-Gang ;

Ko, Pyungwon .

PHYSICS LETTERS B, 2016, 761 :92-97

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