Item request has been placed! ×
Item request cannot be made. ×
loading  Processing Request

Luminosity determination using Z boson production at the CMS experiment

Item request has been placed! ×
Item request cannot be made. ×
loading   Processing Request
اقرأ أكثر حفظ في قائمتي
  • معلومة اضافية
    • Publisher Information:
      Springer country:DE 2024
    • نبذة مختصرة :
      The measurement of Z boson production is presented as a method to determine the integrated luminosity of CMS data sets. The analysis uses proton–proton collision data, recorded by the CMS experiment at the CERN LHC in 2017 at a center-of-mass energy of 13 TeV . Events with Z bosons decaying into a pair of muons are selected. The total number of Z bosons produced in a fiducial volume is determined, together with the identification efficiencies and correlations from the same data set, in small intervals of 20 pb-1 of integrated luminosity, thus facilitating the efficiency and rate measurement as a function of time and instantaneous luminosity. Using the ratio of the efficiency-corrected numbers of Z bosons, the precisely measured integrated luminosity of one data set is used to determine the luminosity of another. For the first time, a full quantitative uncertainty analysis of the use of Z bosons for the integrated luminosity measurement is performed. The uncertainty in the extrapolation between two data sets, recorded in 2017 at low and high instantaneous luminosity, is less than 0.5%. We show that the Z boson rate measurement constitutes a precise method, complementary to traditional methods, with the potential to improve the measurement of the integrated luminosity.
    • الموضوع:
      Boson; Uncertainty analysis; info:eu-repo/semantics/article
    • Note:
      STAMPA
      English
    • Other Numbers:
      ITBAO oai:boa.unimib.it:10281/475500
      10.1140/epjc/s10052-023-12268-2
      info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85181987104
      1434547138
    • Contributing Source:
      BICOCCA OPEN ARCH
      From OAIster®, provided by the OCLC Cooperative.
    • الرقم المعرف:
      edsoai.on1434547138
HoldingsOnline