Measurements of Zγ* production are presented using data collected by the DELPHI detector at centre-of-mass energies ranging from 183 to 209 GeV, corresponding to an integrated luminosity of about 667 pb-1. The measurements cover a wide range of the possible final state four-fermion configurations: hadronic and leptonic (e+e-qq, μ+μ-qq̄, qqνν), fully leptonic (l +l-l'+l'-) and fully hadronic final states (qq̄, qq̄, with a low mass qq̄ pair). Measurements of the Zγ* cross-section for the various final states have been compared with the Standard Model expectations and found to be consistent within the errors. In addition, a total cross-section measurement of the l +l-l'+l'- cross-section is reported, and found to be in agreement with the prediction of the Standard Model. © 2007 Springer-Verlag / Società Italiana di Fisica.

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany Fernandez, R., et al. (2007). Zγ* production in e+e- √s = 183-209 GeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 51(3), 503-523 [10.1140/epjc/s10052-007-0339-y].

Zγ* production in e+e- √s = 183-209 GeV

CALVI, MARTA;PAGANONI, MARCO;TABARELLI DE FATIS, TOMMASO;
2007

Abstract

Measurements of Zγ* production are presented using data collected by the DELPHI detector at centre-of-mass energies ranging from 183 to 209 GeV, corresponding to an integrated luminosity of about 667 pb-1. The measurements cover a wide range of the possible final state four-fermion configurations: hadronic and leptonic (e+e-qq, μ+μ-qq̄, qqνν), fully leptonic (l +l-l'+l'-) and fully hadronic final states (qq̄, qq̄, with a low mass qq̄ pair). Measurements of the Zγ* cross-section for the various final states have been compared with the Standard Model expectations and found to be consistent within the errors. In addition, a total cross-section measurement of the l +l-l'+l'- cross-section is reported, and found to be in agreement with the prediction of the Standard Model. © 2007 Springer-Verlag / Società Italiana di Fisica.
Articolo in rivista - Articolo scientifico
Engineering (miscellaneous); Physics and Astronomy (miscellaneous)
English
2007
51
3
503
523
none
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alemany Fernandez, R., et al. (2007). Zγ* production in e+e- √s = 183-209 GeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 51(3), 503-523 [10.1140/epjc/s10052-007-0339-y].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/155937
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