Broken Symmetry and the Mass of Gauge Vector Mesons

J. Schwinger, 1962, Phys. Rev., 125, 397, 10.1103/PhysRev.125.397

C. N. Yang, 1954, Phys. Rev., 96, 191, 10.1103/PhysRev.96.191

J. J. Sakurai, 1960, Ann. Phys. (N. Y.), 11, 1, 10.1016/0003-4916(60)90126-3

Y. Nambu, 1960, Phys. Rev. Letters, 4, 380, 10.1103/PhysRevLett.4.380

Y. Nambu, 1961, Phys. Rev., 122, 345, 10.1103/PhysRev.122.345

J. Goldstone, 1962, Phys. Rev., 127, 965, 10.1103/PhysRev.127.965

S. A. Bludman, 1963, Phys. Rev., 131, 2364, 10.1103/PhysRev.131.2364

R. Utiyama, 1956, Phys. Rev., 101, 1597, 10.1103/PhysRev.101.1597