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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… Expand

$CPT$ 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… Expand

Cross sections and lorentz violation

- D. Colladay, A. Kostelecký
- Physics
- 29 April 2001

Abstract The derivation of cross sections and decay rates in the Lorentz-violating Standard Model extension is discussed. General features of the physics are described, and some conceptual and… Expand

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… Expand

Classical Lagrangians for momentum dependent Lorentz violation

- D. Colladay, P. Mcdonald
- Physics, Mathematics
- 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… Expand

Scattering cross-sections and Lorentz violation

- D. Colladay
- Physics
- 4 January 2002

To date, a significant effort has been made to adddress the Lorentz violating standard model in low-energy systems, but little is known about the ramifications for high-energy cross sections. In this… Expand

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… Expand

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… Expand

CPT violation and baryogenesis

- O. Bertolami, D. Colladay, V. A. Kosteleck'y, R. Potting
- Physics
- 20 December 1996

We examine the effects on baryogenesis of spontaneous CPT violation in a string-based scenario. Under suitable circumstances, certain CPT-violating terms can produce a large baryon asymmetry at the… Expand

Redefining Spinors in Lorentz-Violating QED

- D. Colladay, P. Mcdonald
- Physics
- 7 February 2002

An analysis of spinor redefinitions in the context of the Lorentz-violating QED extension is performed. Certain parameters that apparently violate Lorentz invariance are found to be physically… Expand

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