Melting spectral functions of the scalar and vector mesons in a holographic QCD model
Abstract
We investigate the finite-temperature spectral functions of heavy quarkonia by using the soft-wall anti-de Sitter/QCD model. We discuss the scalar, the pseudoscalar, the vector, and the axial-vector mesons and compare their qualitative features of the melting temperature and growing width. We find that the axial-vector meson melts earlier than the vector meson, while there appears only a slight difference between the scalar and pseudoscalar mesons, which also melt earlier than the vector meson.
- Publication:
-
Physical Review D
- Pub Date:
- March 2010
- DOI:
- 10.1103/PhysRevD.81.065024
- arXiv:
- arXiv:0911.2298
- Bibcode:
- 2010PhRvD..81f5024F
- Keywords:
-
- 12.38.Mh;
- 11.25.Tq;
- 14.40.-n;
- 25.75.Nq;
- Quark-gluon plasma;
- Gauge/string duality;
- Mesons;
- Quark deconfinement quark-gluon plasma production and phase transitions;
- High Energy Physics - Phenomenology
- E-Print:
- 27 pages, 10 figures