Four-lepton production in proton–proton collisions, pp→(Z/γ∗)(Z/γ∗)→ℓ+ ℓ − ℓ ℓ + ℓ ℓ −, where ℓ , ℓ ℓ =ε or μ, is studied at a center-of-mass energy of 13TeV with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 2.6fb−1. The ZZ production cross section, σ(pp→ZZ) =14.6+1.9−1.8(stat) +0.5−0.3(syst) ±0.2 (theo)±0.4 (lumi) pb, is measured for events with two opposite-sign, same-flavor lepton pairs produced in the mass region 60 4GeV for all opposite-sign, same-flavor lepton pairs. The results are in agreement with standard model predictions.

(2016). Measurement of the ZZ production cross section and Z →ℓ+ℓ−ℓℓ+ℓℓ−branching fraction in pp collisions at √s=13TeV [journal article - articolo]. In PHYSICS LETTERS. SECTION B. Retrieved from http://hdl.handle.net/10446/143466

Measurement of the ZZ production cross section and Z →ℓ+ℓ−ℓℓ+ℓℓ−branching fraction in pp collisions at √s=13TeV

Re, V.;Vai, I.;
2016-01-01

Abstract

Four-lepton production in proton–proton collisions, pp→(Z/γ∗)(Z/γ∗)→ℓ+ ℓ − ℓ ℓ + ℓ ℓ −, where ℓ , ℓ ℓ =ε or μ, is studied at a center-of-mass energy of 13TeV with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 2.6fb−1. The ZZ production cross section, σ(pp→ZZ) =14.6+1.9−1.8(stat) +0.5−0.3(syst) ±0.2 (theo)±0.4 (lumi) pb, is measured for events with two opposite-sign, same-flavor lepton pairs produced in the mass region 60 4GeV for all opposite-sign, same-flavor lepton pairs. The results are in agreement with standard model predictions.
articolo
2016
Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, ...espandi
(2016). Measurement of the ZZ production cross section and Z →ℓ+ℓ−ℓℓ+ℓℓ−branching fraction in pp collisions at √s=13TeV [journal article - articolo]. In PHYSICS LETTERS. SECTION B. Retrieved from http://hdl.handle.net/10446/143466
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/143466
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