Model-independent search for the Abelian Z' boson and the LEP data

dc.creatorGulov, A. V.
dc.creatorSkalozub, V. V.
dc.date2001-07-23
dc.date.accessioned2026-07-07T03:44:59Z
dc.date.available2026-07-07T03:44:59Z
dc.descriptionModel-independent search for the Abelian $Z'$ gauge boson virtual state based on the new observable in the processes $e^+ e^- \to l^+ l^-$ is analyzed for the LEP data. The observable is introduced by using following from renormalizability of an underlying theory the correlations between the parameters of the low energy effective Lagrangian and kinematics of the scattering processes. The central values of the observable are in accordance with the $Z'$ existence, although no real signal is found at the $1σ$ level. Lower limits at the 95% confidence level on the corresponding contact interaction scale are derived in the range of 15.6 - 18.6 TeV. Comparisons with other fits are done.
dc.description6 pages, 1 figure, RevTeX
dc.identifierhttps://arxiv.org/abs/hep-ph/0107236
dc.identifierhttp://arxiv.org/abs/hep-ph/0107236
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/40787
dc.subjectHigh Energy Physics - Phenomenology
dc.titleModel-independent search for the Abelian Z' boson and the LEP data
dc.typetext

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