Recent results in electroweak physics at the Tevatron Page: 1 of 6
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Ferm ilab FERMILAB-Conf-04/014-E February 2004
RECENT RESULTS IN ELECTROWEAK PHYSICS
AT THE TEVATRON
GIULIA MANCA'
(FOR THE CDF AND DO COLLABORATIONS)
University of Oxford, Oxford, United Kingdom
Abstract
The Run II physics program of CDF and DO has just begun with the first 72 pb-1 of analysis
quality data collected at the center-of-mass energy of 1.96 TeV. The Electroweak measurements are
among the first and most important benchmarks for the best understanding of the detectors and
testing the Standard Model. We present measurements of the W and Z inclusive cross sections and
decays asymmetries, recent results in di-boson physics and searches for new physics which make
use of distinct electroweak signatures.
1 Introduction
Studying the electroweak sector is crucial in the CDF and DO physics programs for Run II at the
Tevatron. The measurement of the W mass, one of the most difficult goals of this program, is
central to constraining the mass of the SM Higgs boson and thus to a deep and complete under-
standing of the Standard Model. W and Z cross section measurements are key milestones in the
understanding and calibration of the detectors, and a starting point for any advanced measurement
or discovery. Studies of boson asymmetries and di-boson production processes produce clean and
well-understood signatures which are robust tests the Standard Model and allow one to explore
beyond-the-Standard-Model scenarios with the total integrated luminosity of 4 to 8 fb-I expected
in the next decade. Both the accelerator and the detectors have undergone major upgrades in order
to handle the increase in luminosity and energy achieved during Run II. The introduction of the
Main Injector has allowed the optimization of the use and production of anti-protons, resulting in
36 x 36 bunches and an instantaneous luminosity almost an order of magnitude higher than in Run
I. The increase in center-of-mass energy from 1.8 to 1.96 TeV is directly mirrored in an increase of
the production cross sections, which in the case of the top quark is of 30%[1]. The upgraded CDF
and DO detectors have completely new tracking systems, extended muon coverage and redesigned
trigger and DAQ systems. CDF has a new drift chamber (1 7 1<1.0) and three silicon detectors
'manca@fnal.gov.1
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Manca, Giulia. Recent results in electroweak physics at the Tevatron, article, February 13, 2004; Batavia, Illinois. (https://digital.library.unt.edu/ark:/67531/metadc739698/m1/1/: accessed March 29, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.