Bottomonium Spectroscopy with Mixing of ηb States and a Light CP-Odd Higgs Boson

被引：34
|
作者：
Domingo, Florian [1 ]
Ellwanger, Ulrich [1 ]
Sanchis-Lozano, Miguel-Angel [2 ,3 ]
机构：
[1] Univ Paris 11, CNRS, UMR 8627, Theoret Phys Lab, F-91405 Orsay, France
[2] Univ Valencia, Ctr Mixto, CSIC, Inst Fis Corpuscular, E-46100 Valencia, Spain
[3] Univ Valencia, CSIC, Dept Fis Teor, E-46100 Valencia, Spain
来源：
PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 11期
关键词：
D O I：
10.1103/PhysRevLett.103.111802
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The mass of the eta(b)(1S), measured recently by the BABAR Collaboration, is significantly lower than expected from QCD predictions for the Gamma(1S)-eta(b)(1S) hyperfine splitting. We suggest that the observed eta(b)(1S) mass is shifted downwards due to a mixing with a CP-odd Higgs boson A with a mass m(A) in the range 9.4-10.5 GeV compatible with LEP, CLEO, and BABAR constraints. We determine the resulting predictions for the spectrum of the eta(b)(nS)-A system and the branching ratios into tau(+)tau(-) as functions of m(A).
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页数：4
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