The first measurements of diboson production cross sections in proton-proton interactions at a center-of-mass energy of 5.02 TeV are reported. They are based on data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 302 pb−1. Events with two, three, or four charged light leptons (electrons or muons) in the final state are analyzed. The WW, WZ, and ZZ total cross sections are measured as σWW= 37.0 +5.5−5.2 (stat) +2.7−2.6 (syst) pb, σWZ= 6.4 +2.5−2.1 (stat) +0.5−0.3 (syst) pb, and σZZ= 5.3 +2.5−2.1 (stat) +0.5−0.4 (syst) pb. All measurements are in good agreement with theoretical calculations at combined next-to-next-to-leading order quantum chromodynamics and next-to-leading order electroweak accuracy.
Measurements of the Electroweak Diboson Production Cross Sections in Proton-Proton Collisions at s=5.02 TeV Using Leptonic Decays
Abbrescia, M.;Colaleo, A.;De Palma, M.;My, S.;Nuzzo, S.;Pompili, A.;Selvaggi, G.;Simone, F. M.;Venditti, R.;Errico, F.;
2021-01-01
Abstract
The first measurements of diboson production cross sections in proton-proton interactions at a center-of-mass energy of 5.02 TeV are reported. They are based on data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 302 pb−1. Events with two, three, or four charged light leptons (electrons or muons) in the final state are analyzed. The WW, WZ, and ZZ total cross sections are measured as σWW= 37.0 +5.5−5.2 (stat) +2.7−2.6 (syst) pb, σWZ= 6.4 +2.5−2.1 (stat) +0.5−0.3 (syst) pb, and σZZ= 5.3 +2.5−2.1 (stat) +0.5−0.4 (syst) pb. All measurements are in good agreement with theoretical calculations at combined next-to-next-to-leading order quantum chromodynamics and next-to-leading order electroweak accuracy.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
