DOI 10.1007/s100529900186
Global analysis of eeqq contact interactions and future prospects for high energy physics
A.F. Zarnecki
Institute of Experimental Physics, Warsaw University,
Hoza 69, 00-681 Warszawa, Poland
(e-mail: zarnecki@fuw.edu.pl)
Received: 10 May 1999 / Revised version: 24 June 1999 / Published online: 22 October 1999
Abstract
Data from HERA, LEP and the Tevatron as well as from
low energy
experiments are used to constrain the scale of possible
electron-quark
contact interactions. Different models are considered, including
the most
general one, in which all new couplings can vary independently.
Limits on
couplings and mass scales are extracted and upper limits on
possible effects to be observed in future HERA, LEP and Tevatron
runnings
are estimated.
The total hadronic cross section at LEP and the e-p scattering
cross section at HERA are strongly constrained by the
existing data,
whereas large cross section deviations are still possible for
Drell-Yan lepton pair production at the Tevatron.
Copyright Springer-Verlag
