Bulletin of the American Physical Society
2006 APS April Meeting
Saturday–Tuesday, April 22–25, 2006; Dallas, TX
Session W10: Heineman Prize Session |
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Sponsoring Units: GGR DPF Chair: Pierre Sikivie, University of Florida Room: Hyatt Regency Dallas Cumberland C |
Tuesday, April 25, 2006 10:45AM - 11:21AM |
W10.00001: Current Topics in the Theory of Supergravity Invited Speaker: The attractor mechanism for extremal black holes in extended supergravity will be discussed, especially in the context of Calabi-Yau compactifications to four-dimensional flat space. [Preview Abstract] |
Tuesday, April 25, 2006 11:21AM - 11:57AM |
W10.00002: SIM(2), CP, SUSY, and Gravity Invited Speaker: The proposal of Cohen and Glashow that the laws of physics in flat spacetime need be invariant only under the SIM(2) subgroup of the Lorentz group is extended to include SUSY and gravity. N=1 SUSY gauge theories are formulated which include SIM(2) fermion couplings. These theories contain two conserved supercharges rather than the usual four. The extension to supergravity, although incomplete, suggests constraints on the null field $n^{\mu(x)}$ which replaces the constant null vector $\bar{n}^{\mu}$ of the flat space theory. Modified constraints are then incorporated in a consistent non-SUSY gravitational theory. SIM(2) effects necessarily break CP and Lorentz symmetry. The new ideas suggest that the symmetry breaking is associated with a null geodesic congruence which pervades spacetime. Food for thought. [Preview Abstract] |
Tuesday, April 25, 2006 11:57AM - 12:33PM |
W10.00003: New aspects of old minimal supergravity Invited Speaker: After discussing how supergravity was discovered in 1976,and how it fits in with old ideas of Einstein, Hilbert, Weyl, Wigner, Cartan, Noether and others,we present some new aspects of ``old minimal N=1'' supergravity. [Preview Abstract] |
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