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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/185724
Measurement of forward Z -> e(+)e(-) production at root s=8 TeV
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A measurement of the cross-section for Z-boson production in the forward region of pp collisions at 8 TeV centre-of-mass energy is presented. The measurement is based on a sample of Z → e +e − decays reconstructed using the LHCb detector, corresponding to an integrated luminosity of 2.0 fb−1 . The acceptance is defined by the requirements 2.0 < η < 4.5 and pT > 20 GeV for the pseudorapidities and transverse momenta of the leptons. Their invariant mass is required to lie in the range 60-120 GeV. The cross-section is determined to be σ(pp → Z → e +e −) = 93.81 ± 0.41(stat) ± 1.48(syst) ± 1.14(lumi) pb , where the first uncertainty is statistical and the second reflects all systematic effects apart from that arising from the luminosity, which is given as the third uncertainty. Differential cross-sections are presented as functions of the Z-boson rapidity and of the angular variable φ ∗ , which is related to the Z-boson transverse momentum.
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BALADOV, A., CASANOVA MOHR, R., GARRIDO BELTRÁN, Lluís, GASCÓN FORA, David, GRAUGÉS POUS, Eugeni, GRACIANI DIAZ, Ricardo, MARIN BENITO, Carla, PICATOSTE OLLOQUI, Eduardo, RUIZ, Hugo (ruiz pérez), VALLS, Pr., LHCb collaboration. Measurement of forward Z -> e(+)e(-) production at root s=8 TeV. _Journal of High Energy Physics_. 2015. Vol. 2015, núm. 109, pàgs. 1-24. [consulta: 20 de gener de 2026]. ISSN: 1126-6708. [Disponible a: https://hdl.handle.net/2445/185724]