title: Study of the photon's pole structure in the noncommutative Schwinger model.
abstract: The photon self-energy of the noncommutative Schwinger model at two- and three-loop order is analyzed. It is shown that the mass spectrum of the model does not receive any correction from the noncommutativity parameter ([Formula: see text]) at these orders. Also it remains unchanged to all orders. The exact one-loop effective action for the photon is also calculated.
authors: Department of Physics, Shahid Beheshti University, G. C., Evin, Tehran, 19839 Iran ; School of Physics, Institute for Research in Fundamental Sciences (IPM), P.O.Box 19395-5531, Tehran, Iran.
authors: M
authors: M
authors: Ghasemkhani