First measurement of the W boson mass with CDF in Run 2

Thesis/Dissertation · Sun Jan 01 00:00:00 EST 2006

DOI:https://doi.org/10.2172/892288· OSTI ID:892288

Stelzer-Chilton, Oliver ^[1]

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1. Univ. of Toronto, ON (Canada)

This thesis describes a first measurement of the W Boson mass through the decay into a muon and a neutrino in Run 2 of the Tevatron. The W Bosons are produced in proton-antiproton collisions at a center of mass energy of 1.96 TeV. The data sample used for this analysis corresponds to 200 pb^-1 recorded by the upgraded Collider Detector at Fermilab. The most important quantity in this measurement is the momentum of the muon measured in a magnetic spectrometer which is calibrated using the two quarkonium resonances J/Ψ and Y(1S). Systematic uncertainties arise from the modeling of the recoil when the W Boson is produced, the momentum calibration, the modeling of W Boson production and decay dynamics and backgrounds. The result is: M_W = 80408 ± 50(stat.) ± 57(syst.) MeV/c².

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 892288
• Report Number(s): FERMILAB-THESIS-2005-71; TRN: US0701146
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
A CENTERS
CALIBRATION
DECAY
FERMILAB COLLIDER DETECTOR
FERMILAB TEVATRON
INTERMEDIATE BOSONS
MAGNETIC SPECTROMETERS
MUONS
NEUTRINOS
PRODUCTION
QUARKONIUM
SIMULATION
Experiment-HEP