Modes with variable mass as an alternative in AdS / QCD models with chiral symmetry breaking

Details Modes with variable mass as an alternative in AdS / QCD models with chiral symmetry breaking Modes with variable mass as an alternative in AdS / QCD models with chiral symmetry breaking

2010-05-17

arxiv.org/abs/1005.3000v3

Phys.Rev.D82:115023,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 6 figures; This version is similar to paper published in PRD

Scientific paper

10.1103/PhysRevD.82.115023

We consider a new possibility of incorporating chiral symmetry breaking in soft wall models with a quadratic dilaton and AdS metric. In particular, we allow the mass of the scalar modes propagating in the bulk to have a dependence on the holographical coordinate. In one of the models that we discuss, it is possible obtain a good meson spectra considering current quark masses, and in the other two models considered, good results can be obtained at the expense of considering rather large quark masses.

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