Publication View

Fermion pair production in $e^+e^-$ collisions at 189-209 GeV and constraints on physics beyond the Standard Model (2006)

Abstract
Cross sections, angular distributions and forward-backward asymmetries are presented, of two-fermion events produced in e+e- collisions at centre-of-mass energies from 189 to 209 GeV at LEP, measured with the ALEPH detector. Results for e+e-, mu+mu-, tau+tau-, qq, bb and cc production are in agreement with the Standard Model predictions. Constraints are set on scenarios of new physics such as four-fermion contact interactions, leptoquarks, Z' bosons, TeV-scale quantum gravity and R-parity violating squarks and sneutrinos.

Publication details
Download http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-ex&id=0609051
http://cdsweb.cern.ch/record/986243/files/0609051.pdf
http://cdsweb.cern.ch/record/986243/files/0609051_REPLACED_ON_20070713.pdf
Repository CERN Document Server (Switzerland)
Keywords Particle Physics - Experimental Results
Language eng