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Physical Sciences and Mathematics

Selected Works

Pran Nath

Selected Works

2011

Muon anomaly

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Effects Of Large Cp Violating Phases On $G_{\M}-2$ In The Mssm, Tarek Ibrahim, Pran Nath Feb 2011

Effects Of Large Cp Violating Phases On $G_{\M}-2$ In The Mssm, Tarek Ibrahim, Pran Nath

Pran Nath

Effects of CP violation on the supersymmetric electro-weak correction to the anomalous magnetic moment of the muon are investigated with the most general allowed set of CP violating phases in MSSM. The analysis includes contributions from the chargino and the neutralino exchanges to the muon anomaly. The supersymmetric contributions depend only on specific combinations of CP phases. The independent set of such phases is classified. We analyse the effects of the phases under the EDM constraints and show that large CP violating phases can drastically affect the magnitude of the supersymmetric electro-weak contribution to $a_{\mu}$ and may even affect its …


Cp Violation And The Muon Anomaly In N=1 Supergravity, Tarek Ibrahim, Pran Nath Jan 2011

Cp Violation And The Muon Anomaly In N=1 Supergravity, Tarek Ibrahim, Pran Nath

Pran Nath

The one loop supersymmetric electro-weak correction to the anomalous magnetic moment of the muon is derived in the minimal N = 1 supergravity unification with two CP violating phases. A numerical analysis of the CP violating effects on gμ−2 is carried out with the cancellation mechanism to guarantee the satisfaction of the experimental limits on the electric dipole moments of the electron and on the neutron. It is found that the effects of the CP phases can significantly affect the supersymmetric electro-weak correction to gμ−2, and that the numerical size of such a correction can be as large or larger …