C. Arzt, M. B. Einhorn, J. Wudka
Published 1994-05-03, updated 1994-05-18Version 5
Effective Lagrangians can be used to parametrize the effects of physics beyond the standard model. Assuming the complete theory is a gauge theory, we determine which effective operators may be generated at tree level, and which are only generated at loop level. The latter are be suppressed by factors of $1/ 16\pi^2$ and will therefore be quite difficult to detect. In particular, all operators changing the Standard-Model structure of the triple-gauge-vector couplings fall into this category. We also point out that in certain cases, dimension-eight operators may be more important than dimension-six operators. We discuss both the linear and non-linear representation of the Higgs sector.
Comments: 37 pages, UM-TH-94-15. Four figures and one table are embedded in text. This file requires as inputs epsf.tex and the IAS version of phyzzx.tex. The complete manuscript is available as a postscript file via anonymous FTP to williams.physics.lsa.umich.edu. It is called deviation.ps in the /pub subdirectory. (Modified to add a table and to make minor corrections.)
Journal: Nucl.Phys. B433 (1995) 41-66
Constraints on the Higgs Sector from Processes Involving Photons
Implications of sigma models in the standard model and beyond
Maximal $CP$ violation in the Higgs Sector and its Effect on the $ρ$ Parameter
