Chiral tensor fields and spontaneous breaking of Lorentz symmetry
Loading...
Date
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
Antisymmetric tensor fields interacting with quarks and leptons have been proposed as a possible solution to the gauge hierarchy problem. We compute the one-loop beta function for a quartic self-interaction of the chiral antisymmetric tensor fields. Fluctuations of the top quark drive the corresponding running coupling to a negative value as the renormalization scale is lowered. This may indicate a non-vanishing expectation value of the tensor field, and thus a spontaneous breaking of Lorentz invariance. Settling this issue will need the inclusion of tensor loops.
15 pages, 4 figures
15 pages, 4 figures