U(1) Axial Symmetry and Correlation Functions in the High Temperature Phase of QCD

U(1) Flavor Symmetry and Proton Decay in Supersymmetric Standard Model

U(1) Goldberger-Treiman Relation and Its Connection to the Proton Spin

U(1) masses in intersecting D-brane SM-like models

U(1) Problem Revisited

U(1) symmetry and R parity violation

U(1) textures and Lepton Flavor Violation

U(1)$_A$ Models of Fermion Masses Without a $μ$ Problem

U(1)' solution to the mu-problem and the proton decay problem in supersymmetry without R-parity

U(1)' Symmetry Breaking in Supersymmetric E6 Models

U(1)_A symmetry in two-doublet models, U bosons or light scalars, and psi and Upsilon decays

U(1)_A Topological Susceptibility and its Slope, Pseudoscalar Gluonium and the Spin of the Proton

U(1)_B-L: Neutrino Physics and Inflation

U(1)_Q invariance and SU(3)_C X SU(3)_L X U(1)_X models with beta arbitrary

U(1)_R-mediated supersymmetry breaking from a six-dimensional flux compactification

U(12) A New Symmetry Possibly Realizing in Hadron Spectroscopy

U(2) and Maximal Mixing of nu_{mu}

U(2) and MFV in Supersymmetry

U(2) and Minimal Flavour Violation in Supersymmetry

U(2) Flavor Physics without U(2) Symmetry