### Anomalous Magnetic Moment of Electron in Chern-Simons QEDAnomalous Magnetic Moment of Electron in Chern-Simons QED

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 Author Das, Ashok ♦ Perez, Silvana Source arXiv.org Content type Text File Format PDF Date of Submission 2003-11-15 Language English
 Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics Subject Keyword High Energy Physics - Theory ♦ High Energy Physics - Phenomenology ♦ physics:hep-ph ♦ physics:hep-th Abstract We calculate the anomalous magnetic moment of the electron in the Chern-Simons theory in 2+1 dimensions with and without a Maxwell term, both at zero temperature as well as at finite temperature. In the case of the Maxwell-Chern-Simons (MCS) theory, we find that there is an infrared divergence, both at zero as well as at finite temperature, when the tree level Chern-Simons term vanishes, which suggests that a Chern-Simons term is essential in such theories. At high temperature, the thermal correction in the MCS theory behaves as $\frac{1}{\beta} \ln \beta M$, where $\beta$ denotes the inverse temperature and $M$, the Chern-Simons coefficient. On the other hand, we find no thermal correction to the anomalous magnetic moment in the pure Chern-Simons (CS) theory. Description Reference: Phys.Lett.B581:182-192,2004 Educational Use Research Learning Resource Type Article Page Count 13