Single top quark production via four-fermion contact interactions associated to flavour-changing neutral currents was searched for in data taken by the DELPHI detector at LEP2. The data were accumulated at centre-of-mass energies ranging from 189 to 209 GeV, with an integrated luminosity of 598.1 pb(-1). No evidence for a signal was found. Limits on the energy scale Lambda, were set for scalar-, vector- and tensor-like coupling scenarios.
Search for single top quark production via contact interactions at LEP2
S. Amato;A. Benvenuti;A. De Min;A. Di Simone;C. Garcia;E. Graziani;M. Margoni;F. Mazzucato;C. Meroni;E. Migliore;F. Parodi;A. Pullia;P. Rebecchi;G. Vegni;
2011-01-01
Abstract
Single top quark production via four-fermion contact interactions associated to flavour-changing neutral currents was searched for in data taken by the DELPHI detector at LEP2. The data were accumulated at centre-of-mass energies ranging from 189 to 209 GeV, with an integrated luminosity of 598.1 pb(-1). No evidence for a signal was found. Limits on the energy scale Lambda, were set for scalar-, vector- and tensor-like coupling scenarios.File in questo prodotto:
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