Studies of theoretical uncertainties on the measurement of the mass of the WW boson at the LHC

Oct 20, 2014
27 pages
  • Published: 2014
    and
  • Published: Oct 20, 2014
Report number:
  • ATL-PHYS-PUB-2014-015
Experiments:

Citations per year

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Abstract: (CDS)
The measurement of the mass of the WW boson at the LHC requires control of both theoretical and experimental uncertainties. The extraction of the WW-boson mass from the transverse momentum spectrum of electrons and muons produced in the leptonic decay of the WW boson, is likely to be limited by theoretical uncertainties. Uncertainties arising from the incomplete knowledge of the parton density functions and from the modelling of the low transverse momentum of the WW boson are estimated, accounting for the resolution effects of the ATLAS detector. Emphasis is given to the study of the physical origin of the uncertainties, so as to provide useful information for further reduction of the uncertainties.
Note:
  • wmass
  • EWEAK
  • p p: scattering
  • p p: colliding beams
  • W: hadroproduction
  • transverse momentum: momentum spectrum
  • electron: transverse momentum
  • muon: transverse momentum
  • transverse momentum: low
  • parton: density