Study of B(B)over-bar/D(D)over-bar bound states in a Bethe-Salpeter approach

被引：56

作者：

He, Jun ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Inst Modern Phys, Div Theoret Phys, Lanzhou 730000, Peoples R China

[2] Lanzhou Univ, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Peoples R China

[3] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China

来源：

PHYSICAL REVIEW D | 2014年 / 90卷 / 07期

基金：

中国国家自然科学基金;

关键词：

MOLECULAR-STATES; MESONS;

D O I：

10.1103/PhysRevD.90.076008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this work the B (B) over bar*/D (D) over bar* system is studied in the Bethe-Salpeter approach with quasipotential approximation. In our calculation both direct and cross diagrams are included in the one-boson-exchange potential. The numerical results indicate the existence of an isoscalar bound state D (D) over bar* with J(PC) = 1(++) which may be related to the X(3872). In the isovector sector, no bound state is produced from the interactions of D (D) over bar* and B (B) over bar*, which suggests the molecular state explanations for Z(b)(10610) and Z(c)(3900) are excluded.

引用

页数：6

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Study of B(B)over-bar*/D(D)over-bar* bound states in a Bethe-Salpeter approach

Study of B(B)over-bar/D(D)over-bar bound states in a Bethe-Salpeter approach