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We study topologically massive (2+1)-dimensional gravity with a cosmological constant. The masses of the linearized excitations about AdS3 backgrounds are both shifted from their flat backgroundâ€¦ (More)

We analyze (2 + 1)-dimensional gravity with a Chernâ€“Simons term and a negative cosmological constant, primarily at the weak field level. The full theory is expressible as the sum of two higherâ€¦ (More)

- Derek Keith Wise
- 2006

We investigate p-form electromagnetismâ€”with the Maxwell and Kalbâ€“ Ramond fields as lowest-order casesâ€”on discrete spacetimes, including not only the regular lattices commonly used in lattice gaugeâ€¦ (More)

A â€˜2-groupâ€™ is a category equipped with a multiplication satisfying laws like those of a group. Just as groups have representations on vector spaces, 2-groups have representations on â€˜2-vectorâ€¦ (More)

- Derek Keith Wise
- 2009

The geometric content of the MacDowellâ€“Mansouri formulation of general relativity is best understood in terms of Cartan geometry. In particular, Cartan geometry gives clear geometric meaning to theâ€¦ (More)

- Derek Keith Wise
- 2009

Einstein gravity in both 3 and 4 dimensions, as well as some interesting generalizations, can be written as gauge theories in which the connection is a Cartan connection for geometry modeled on aâ€¦ (More)

We show that general relativity can be viewed as a higher gauge theory involving a categorical group, or 2-group, called the teleparallel 2-group. On any semi-Riemannian manifold M , we firstâ€¦ (More)

- Lusha Zhu, J. C. Peng, +39 authors Glenn R. Young
- Physical review letters
- 2007

We report a measurement of the angular distributions of Drell-Yan dimuons produced using an 800 GeV/c proton beam on a deuterium target. The muon angular distributions in the dilepton rest frame haveâ€¦ (More)

- Lin Yan Zhu, J. C. Peng, +39 authors Glenn R. Young
- Physical review letters
- 2009

We report a measurement of the angular distributions of Drell-Yan dimuons produced using an 800 GeV/c proton beam on a hydrogen target. The polar and azimuthal angular distribution parameters haveâ€¦ (More)

- Derek Keith Wise
- 2005

Since Wilsonâ€™s work on lattice gauge theory in the 1970s, discrete versions of field theories have played a vital role in fundamental physics. But there is recent interest in certain higherâ€¦ (More)