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| Paper IPM / P / 13890 |
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| Abstract: | |
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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.
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