Search for single top quark production via contact interactions at LEP2

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.
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Journal articles
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2011, 71, 1555 (13 p.). <10.1140/epjc/s10052-011-1555-z>


http://hal.in2p3.fr/in2p3-00586332
Contributor : Dominique Girod <>
Submitted on : Friday, April 15, 2011 - 3:30:47 PM
Last modification on : Wednesday, June 1, 2011 - 3:58:30 PM

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CEA | UPMC | DRS-IPHC | IPNL | LPNHE | PCC | LPSC | IPHC | UGA

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J. Abdallah, M. Brunet, D. Bloch, M. Nikolenko, M. Winter, et al.. Search for single top quark production via contact interactions at LEP2. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2011, 71, 1555 (13 p.). <10.1140/epjc/s10052-011-1555-z>. <in2p3-00586332>

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