Glueball spectrum for QCD from AdS supergravity duality

We present the analysis of the complete glueball spectrum for the AdS(7) bl ack hole supergravity dual of QCD(4) in strong coupling limit: g(2)N --> in finity. The bosonic fields in the supergravity multiplet lead to 6 independ ent wave equations contributing to glueball states with J(PC) = 2(++), 1(+- ), 1(--), 0(++) and 0(-+). We study the spectral splitting and degeneracy p atterns for both QCD(4) and QCD(3). Despite the expected limitations of a l eading order strong coupling approximation, the pattern of spins, parities and mass inequalities bare a striking resemblance to the known QCD(4) glueb all spectrum as determined by lattice simulations at weak coupling. (C) 200 0 Elsevier Science B.V. All rights reserved.