Confront holographic QCD with Regge trajectories of vectors and axial-vectors

Towards understanding Regge trajectories in holographic QCD

We reassess a work done by Migdal on the spectrum of low-energy vector mesons in QCD in the light of the AdS-QCD correspondence. Recently, a tantalizing parallelism was suggested between Migdal’s work and a family of holographic duals of QCD. Despite the intriguing similarities, both approaches face a major drawback: the spectrum is in conflict with well-tested Regge scaling. However, while hol...

QCD Glueball Regge Trajectories and the Pomeron

We report glueball Regge trajectories emerging from diagonalizing a confining Coulomb gauge Hamiltonian for constituent gluons. Using a BCS vacuum ansatz and gap equation, the dressed gluons acquire a mass, of order 800 MeV , providing the quasiparticle degrees of freedom for a TDA glueball formulation. The TDA eigenstates for two constituent gluons have orbital, L, excitations with a character...

Spectrum and Regge - trajectories in QCD

The quest for light scalar quarkonia from an N f = 3 linear sigma model with vectors and axial - vectors

We address the question whether it is possible to interpret the low-lying scalar mesons f 0 (600) and a 0 (980) as ¯ qq states within a U(3) × U(3) Linear Sigma Model containing vector and axial-vector degrees of freedom. c Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

Cockroaches as Reservoirs and Vectors of Drug Resistant Salmonella spp.

Cockroaches were collected from hospitals, houses and poultry sheds in various parts of Isfahan (Iran) and identified to species. In total, seven species of cockroaches in seven genera were identified: Blatta lateralis, Polyphaga aegyptiaca, Arenivaga roseni and Parcoblatta spp. Three species Periplaneta americana, Blattella germanica and Supella longipalpa (Blattidae and Blattellidae) were mor...