O'KKLT
O'KKLT at Finite Temperature
O'Mega & WHIZARD: Monte Carlo Event Generator Generation For Future Colliders
O'Mega: An Optimizing Matrix Element Generator
O'Mega: An Optimizing Matrix Element Generator
O'Raifeartaigh models with spontaneous R-symmetry breaking
O(1/M^3) effects for heavy-light mesons in lattice NRQCD
O(1/N^3) Conformal Bootstrap Solution of the SU(2) x SU(2) Nambu--Jona-Lasinio Model
O(1/N_f) Corrections to the Thirring Model in 2<d<4
O(2) symmetry breaking vs. vortex loop percolation
O(2,2) Transformations and the String Geroch Group
O(3) Flavor Symmetry and an Empirical Neutrino Mass Matrix
O(3) Non-linear $σ$ model with Hopf term and Higher spin theories
O(3) Sigma model with Hopf term on Fuzzy Sphere
O(4) symmetric singular solutions and multiparticle cross sections in $φ^4$ theory at tree level
O(4) texture with a cosmological constant
O(6,22) BPS Configurations of the Heterotic String
O(a) errors in 3-D SU(N) Higgs theories
O(a) improved lattice QCD
O(a) improved QCD: The 3-loop beta-function, and the critical hopping parameter