Chiral symmetry breaking from five dimensional spaces

Details Chiral symmetry breaking from five dimensional spaces Chiral symmetry breaking from five dimensional spaces

2005-01-24

arxiv.org/abs/hep-ph/0501218v3

Nucl.Phys.B721:79-97,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 5 figures

Scientific paper

10.1016/j.nuclphysb.2005.05.009

Based on the AdS/CFT correspondence we study the breaking of the chiral symmetry in QCD using a simple five dimensional model. The model gives definite predictions for the spectrum of vector mesons, their decay constants and interactions as a function of one parameter related to the quark condensate. We calculate the coefficients $L_i$ of the low-energy QCD chiral lagrangian, as well as other physical quantities for the pions. All the predictions are shown to be in good agreement with the experimental data. We also show that they are robust under modifications of the 5D metric in the IR, and that some of them arise as a consequence of the higher-dimensional gauge symmetry. For example, at the tree-level, we find $M_\rho \simeq \sqrt{3} g_{\rho\pi\pi} F_\pi$, $F_\rho\simeq \sqrt{3} F_\pi$ and BR($a_1\to \pi\gamma)=0$.

Affiliated with

Also associated with

No associations

Rating

Chiral symmetry breaking from five dimensional spaces does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Chiral symmetry breaking from five dimensional spaces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chiral symmetry breaking from five dimensional spaces will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-312493