Probing anomalous quartic gauge-boson couplings via e+e- --> 4fermions+gamma

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dc.creatorDenner, A.
dc.creatorDittmaier, S.
dc.creatorRoth, M.
dc.creatorWackeroth, D.
dc.date2001-04-05
dc.date2001-04-06
dc.date.accessioned2026-07-07T12:26:14Z
dc.date.available2026-07-07T12:26:14Z
dc.descriptionAll lowest-order amplitudes for e+e- --> 4f+gamma are calculated including five anomalous quartic gauge-boson couplings that are allowed by electromagnetic gauge invariance and the custodial SU(2)_c symmetry. Three of these anomalous couplings correspond to the operators L_0, L_c, and L_n that have been constrained by the LEP collaborations in WWgamma production. The anomalous couplings are incorporated in the Monte Carlo generator RACOONWW. Moreover, for the processes e+e- --> 4f+gamma RACOONWW is improved upon including leading universal electroweak corrections such as initial-state radiation. The discussion of numerical results illustrates the size of the leading corrections as well as the impact of the anomalous quartic couplings for LEP2 energies and at 500GeV.
dc.description27 pages, latex, 42 postscript files, some misprints corrected
dc.identifierhttps://arxiv.org/abs/hep-ph/0104057
dc.identifierhttp://arxiv.org/abs/hep-ph/0104057
dc.identifierEur.Phys.J.C20:201-215,2001
dc.identifierdoi:10.1007/s100520100678
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214818
dc.subjectHigh Energy Physics - Phenomenology
dc.titleProbing anomalous quartic gauge-boson couplings via e+e- --> 4fermions+gamma
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