A five-dimensional effective model for excited light mesons
- Resource Type
- Authors
- S. S. Afonin; David Armstrong; Volker Burkert; Jian-Ping Chen; Will Detmold; Jo Dudek; Wally Melnitchouk; David Richards
- Source
- Proceedings of The XIXth International Workshop on High Energy Physics and Quantum Field Theory — PoS(QFTHEP2010).
- Subject
- Quantum chromodynamics
Physics
Coupling
Particle physics
Meson
High Energy Physics::Lattice
Conformal anomaly
High Energy Physics::Phenomenology
Continuum (design consultancy)
FOS: Physical sciences
Gluon condensate
High Energy Physics - Phenomenology
High Energy Physics - Phenomenology (hep-ph)
Excited state
Quantum electrodynamics
High Energy Physics::Experiment
Scalar field
- Language
In the usual holographic approach to QCD, the meson spectrum is generated due to a non-trivial 5-dimensional background. We propose an alternative 5-dimensional scenario in which the spectrum emerges due to coupling to a scalar field whose condensation is supposed to be dual to the formation of gluon condensate and mimics the scale anomaly in QCD. The spectrum of model has finite number of discrete states plus continuum and reveals a Regge-like behavior in the strong coupling regime.
4 pages, to appear in the proceedings of MENU2010