Measurement of the Zγ→νν‾γ production cross section in pp collisions at √s=8 TeV and limits on anomalous ZZγ and Zγγ trilinear gauge boson couplings

Link:
Erscheinungsjahr:
2016
Medientyp:
Text
Schlagworte:
  • MET
  • Photon
Beschreibung:
  • An inclusive measurement of the Z gamma -> nu(nu) over bar gamma production cross section in pp collisions at root s = 8 TeV is presented, using data corresponding to an integrated luminosity of 19.6fb(-1) collected with the CMS detector at the LHC. This measurement is based on the observation of events with large missing energy and with a single photon with transverse momentum above 145 GeV and absolute pseudorapidity in the range vertical bar eta vertical bar < 1.44. The measured Z gamma -> nu<(nu)over bar>gamma production cross section, 52.7 +/- 2.1(stat) +/- 6.4(syst) +/- 1.4(lumi) fb, agrees well with the standard model prediction of 50.0(-2.2)(+2.4) fb. A study of the photon transverse momentum spectrum yields the most stringent limits to date on the anomalous ZZ gamma and Z gamma gamma trilinear gauge boson couplings. (C) 2016 The Author(s). Published by Elsevier B.V.
Lizenzen:
  • info:eu-repo/semantics/openAccess
  • http://creativecommons.org/licenses/by/4.0/
Quellsystem:
Forschungsinformationssystem der UHH

Interne Metadaten
Quelldatensatz
oai:www.edit.fis.uni-hamburg.de:publications/8943649b-61c6-4d84-8d73-439d2cd7e620