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Measurement and Interpretation of Fermion-Pair Production at LEP Energies of 183 and 189 GeV

par Abreu, Pedro;Bertrand, Daniel ; [et al.]
Référence Physics letters. Section B, 485, page (45-61)
Publication Publié, 2000

Article révisé par les pairs

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Résumé :

An analysis of the data collected in 1997 and 1998 with the DELPHI detector at e +e - collision energies close to 183 and 189 GeV was performed in order to extract the hadronic and leptonic fermion-pair cross-sections, as well as the leptonic forward-backward asymmetries and angular distributions. The data are used to put limit on contact interactions between fermions, the exchange of R-parity violating SUSY sneutrinos, Z' bosons and the existence of gravity in extra dimensions. (C) 2000 Published by Elsevier Science B.V.