Measurement of ZZ production in pp collisions at [square root]s = 7 TeV and limits on anomalous ZZZ and ZZ[gamma] couplings with the ATLAS detector

Abstract: A measurement of the ZZ production cross section in proton-proton collisions at s√=7 TeV using data recorded by the ATLAS experiment at the Large Hadron Collider is presented. In a data sample corresponding to an integrated luminosity of 4.6 fb−1 collected in 2011, events are selected that are consistent either with two Z bosons decaying to electrons or muons or with one Z boson decaying to electrons or muons and a second Z boson decaying to neutrinos. The ZZ (*) → ℓ + ℓ − ℓ ′+ ℓ ′− and ZZ→ℓ+ℓ−νν¯¯¯ cross sections are measured in restricted phase-space regions. These results are then used to derive the total cross section for ZZ events produced with both Z bosons in the mass range 66 to 116 GeV, σtotZZ=6.7±0.7(stat.)+0.4−0.3(syst.)±0.3(lumi.) pb, which is consistent with the Standard Model prediction of 5.89+0.22−0.18 pb calculated at next-to-leading order in QCD. The normalized differential cross sections in bins of various kinematic variables are presented. Finally, the differential event yield as a function of the transverse momentum of the leading Z boson is used to set limits on anomalous neutral triple gauge boson couplings in ZZ production

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch
• Notes: Journal of high energy physics. - 2013, 3 (2013) , 128, ISSN: 1029-8479

Contributors, Places and Time

• Event: Veröffentlichung
• (where): Freiburg
• (who): Universität
• (when): 2022
• Creator: Aad, Georges ; Ahles, Florian ; Barber, Thomas J. ; Bernhard, Ralf ; Böhler, Michael ; Bruneliere, Renaud ; Christov, Asen ; Consorti, Valerio ; Fehling-Kaschek, Mirjam ; Flechl, Martin ; Hartert, Jochen ; Herten, Gregor ; Horner, Stephan ; Jakobs, Karl ; Janus, Michel ; Kononov, Artem I. ; Kühn, Susanne ; Lai, Stanley T. ; Landgraf, Ulrich ; Lohwasser, Kristin ; Ludwig, Inga ; Ludwig, Jens ; Mahboubi, Kambiz ; Mohr, Wolfgang ; Nilsen, Halvor Moll ; Parzefall, Ulrich ; Rammensee, Michael ; Rave, Tobias ; Rúriková, Zuzana ; Schmidt, Evelyn ; Schumacher, Markus ; Siegert, Frank ; Störig, Kathrin ; Sundermann, Jan Erik ; Temming, Kim ; Thoma, Sascha ; Tsiskaridze, Vakhtang ; Venturi, Manuela ; Vivarelli, Iacopo ; Radziewski, Holger von ; Vu Anh, Tuan ; Warsinsky, Markus ; Weiser, Christian ; Werner, Matthias ; Winkelmann, Stefan ; Xie, Song ; Zimmermann, Stephanie ; ATLAS Collaboration CERN

Further information

• DOI: 10.1007/jhep03(2013)128
• URN: urn:nbn:de:bsz:25-freidok-2237795
• Rights: Kein Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 25.03.2025, 1:51 PM CET