TRILINEAR ANOMALOUS GAUGE COUPLINGS AND NONSTANDARD FERMIONIC COUPLINGS

Citation
R. Casalbuoni et al., TRILINEAR ANOMALOUS GAUGE COUPLINGS AND NONSTANDARD FERMIONIC COUPLINGS, Physical review. D. Particles and fields, 55(7), 1997, pp. 4203-4212
Citations number
17
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
55
Issue
7
Year of publication
1997
Pages
4203 - 4212
Database
ISI
SICI code
0556-2821(1997)55:7<4203:TAGCAN>2.0.ZU;2-8
Abstract
In this paper we analyze the reaction e(+)e(-)-->W+W- for various opti ons of the Next Linear Colliders, by considering the possibility of de viations from the standard model induced by anomalous trilinear vector boson couplings and nonstandard fermionic couplings. We show that the re are strong correlations among these parameters. By studying the hig h-energy behavior of the helicity amplitudes we show that the error ma de in linearizing the cross section in the anomalous and nonstandard c ouplings increases with the square of the center-of-mass energy. We co nsider also the option of longitudinally polarized electron beams by s howing that, in this case, the restrictions on the anomalous and nonst andard parameters are greatly enhanced.