AdS/QCD model from an effective action for open string tachyons

被引:54
|
作者
Iatrakis, Ioannis [1 ]
Kiritsis, Elias [1 ,2 ,3 ]
Paredes, Angel [4 ,5 ]
机构
[1] Univ Crete, Dept Phys, Crete Ctr Theoret Phys, Iraklion 71003, Greece
[2] Univ Paris 07, APC, F-75205 Paris, France
[3] CNRS, UMR 7164, F-75700 Paris, France
[4] Univ Barcelona, Dept Fis Fonamental, E-08028 Barcelona, Spain
[5] Univ Barcelona, ICCUB Inst Ciencies Cosmos, E-08028 Barcelona, Spain
来源
PHYSICAL REVIEW D | 2010年 / 81卷 / 11期
关键词
CHIRAL-SYMMETRY BREAKING;
D O I
10.1103/PhysRevD.81.115004
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We construct a new, simple phenomenological model along the lines of AdS/QCD. The essential new ingredient is the brane-antibrane effective action including the open string tachyon proposed by Sen [Phys. Rev. D 68, 066008 (2003).]. Chiral symmetry breaking happens because of tachyon dynamics. We fit a large number of low-spin meson masses at the 10%-15% level. The only free parameters involved in the fits correspond to the overall QCD scale and the quark masses. Several aspects of previous models are qualitatively improved.
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页数:5
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