A search fur events with one jet and at most one isolated lepton used data taken at LEP-2 by the DELPHI detector. These data were accumulated at a center-of-mass energy of 183 GeV and correspond to an integrated luminosity of 47.7 pb(-1) Production of single scalar and vector leptoquarks was searched for. Limits at 95% confidence level were derived on the masses (ranging from 134GcV/c(2) to 171GeV/c(2) for electromagnetic type couplings) and couplings of the leptoquark rates. A search for top-charm flavour changing neutral currents (e(+)e(-) --> (t) over bar c or charge conjugate) used the semileptonic decay channel. A limit on the flavour changing cross-section via neutral currents was set at 0.55pb (95%: confidence level). (C) 1999 Elsevier Science B.V. All rights reserved.

Search for Leptoquarks and FCNC in e(+)(e)(-) annihilations root s = 183 GeV

BIANCHI, Fabrizio;MIGLIORE, Ernesto;ROMERO, Alessandra;
1999-01-01

Abstract

A search fur events with one jet and at most one isolated lepton used data taken at LEP-2 by the DELPHI detector. These data were accumulated at a center-of-mass energy of 183 GeV and correspond to an integrated luminosity of 47.7 pb(-1) Production of single scalar and vector leptoquarks was searched for. Limits at 95% confidence level were derived on the masses (ranging from 134GcV/c(2) to 171GeV/c(2) for electromagnetic type couplings) and couplings of the leptoquark rates. A search for top-charm flavour changing neutral currents (e(+)e(-) --> (t) over bar c or charge conjugate) used the semileptonic decay channel. A limit on the flavour changing cross-section via neutral currents was set at 0.55pb (95%: confidence level). (C) 1999 Elsevier Science B.V. All rights reserved.
1999
Inglese
446
62
74
12
FRANCIA
262
524
P. Abreu;W. Adam;T. Adye;P. Adzic;T. Aldeweireld;G. D. Alekseev;R. Alemany;T. Allmendinger;P. P. Allport;S. Almehed;U. Amaldi;S. Amato;E. ...espandi
info:eu-repo/semantics/article
none
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/104287
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