Hyperfine splitting and the experimental candidates for ηb(2S)

被引：11

作者：

Burns, T. J. ^{[1
]}

机构：

[1] Univ Durham, Dept Math Sci, Durham DH1 3LE, England

来源：

PHYSICAL REVIEW D | 2013年 / 87卷 / 03期

关键词：

FLUX-TUBE MODEL; RELATIVISTIC CORRECTIONS; PERTURBATIVE QCD; POTENTIAL MODEL; HEAVY QUARKONIA; DECAY-RATES; MESONS; SPECTRA; BOTTOMONIUM; CHARMONIUM;

D O I：

10.1103/PhysRevD.87.034022

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Predictions for the hyperfine splitting of 2S bottomonia are compared with the two recent experimental candidates for the eta(b)(2S). The smaller splitting of the Belle state is consistent with unquenched lattice QCD computations, many potential models, and a model-independent relation which works well for charmonia. The larger splitting for the state extracted from CLEO data is inconsistent with most predictions. DOI: 10.1103/PhysRevD.87.034022

引用

页数：8

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