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Lorentz-Violating Extension of the Standard Model
- D. Colladay, A. Kostelecký
- Physics
- 24 September 1998
In the context of conventional quantum field theory, we present a general Lorentz-violating extension of the minimal…
$CPT$ violation and the standard model
- D. Colladay, A. Kostelecký
- Physics
- 31 March 1997
Spontaneous CPT breaking arising in string theory has been suggested as a possible observable experimental signature in neutral-meson systems. We provide a theoretical framework for the treatment of…
Cross sections and lorentz violation
- D. Colladay, A. Kostelecký
- Physics
- 29 April 2001
Cosmic-ray fermion decay by emission of on-shell W bosons with C P T violation
- D. Colladay, J. Noordmans, R. Potting
- Physics
- 11 April 2017
We study CPT and Lorentz violation in the electroweak gauge sector of the Standard Model in the context of the Standard-Model Extension. In particular, we consider the Lorentz-violating and CPT-odd…
Covariant Quantization of CPT-violating Photons
- D. Colladay, P. Mcdonald, J. Noordmans, R. Potting
- Physics
- 1 October 2016
We perform the covariant canonical quantization of the CPT- and Lorentz-symmetry-violating photon sector of the minimal Standard-Model Extension, which contains a general (timelike, lightlike, or…
Classical Lagrangians for momentum dependent Lorentz violation
- D. Colladay, P. Mcdonald
- Physics
- 18 January 2012
Certain momentum-dependent terms in the fermion sector of the Lorentz-violating Standard Model Extension (SME) yield solvable classical lagrangians of a type not mentioned in the literature. These…
Cherenkov radiation with massive,CPT-violating photons
- D. Colladay, P. Mcdonald, R. Potting
- Physics
- 1 March 2016
The source of CPT-violation in the photon sector of the Standard Model Extension arises from a Chern-Simons-like contribution that involves a coupling to a fixed background vector field $k_{AF}^\mu$.…
Vector Superfields and Lorentz Violation
- D. Colladay, P. Mcdonald
- Physics
- 8 October 2010
We extend Lorentz-violating supersymmetry models to include vector superfields. The CPT-preserving model generalizes easily, while the obvious attempt at generalizing the CPT-violating model meets…
Comparison Results, Exit Time Moments, and Eigenvalues on Riemannian Manifolds with a Lower Ricci Curvature Bound
- D. Colladay, J. Langford, P. McDonald
- Mathematics
- 6 June 2017
We study the relationship between the geometry of smoothly bounded domains in complete Riemannian manifolds and the associated sequence of $$L^1$$L1-norms of exit time moments for Brownian motion. We…
Possible spontaneous breaking of lorentz and CPT symmetry
- D. Colladay
- Physics
- 30 July 1999
One possible ramification of unified theories of nature such as string theory that may underlie the conventional standard model is the possible spontaneous breakdown of Lorentz and CPT symmetry. In…
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