## Measurement of forward $\rm Z\rightarrow e^+e^-$ production at $\sqrts=8$ TeVстатья

Статья опубликована в высокорейтинговом журнале

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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 марта 2016 г.
• Авторы:
• Журнал: Journal of High Energy Physics
• Том: 5
• Год издания: 2015
• Издательство: Institute of Physics Publishing
• Местоположение издательства: United Kingdom
• Первая страница: 109
• DOI: 10.1007/JHEP05(2015)109
• Аннотация: A measurement of the cross-section for Z-boson production in the forward region of p p 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.
• Добавил в систему: Бережной Александр Викторович

### Работа с статьей

 [1] Measurement of forward z→e+e- production at =8 tev / C. LHCb, А. В. Бережной, А. К. Лефлат et al. // Journal of High Energy Physics. — 2015. — Vol. 5. — P. 109. A measurement of the cross-section for Z-boson production in the forward region of p p 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. [ DOI ]