3,307 research outputs found
Theoretical Challenges for a Precision Measurement of the W Mass at Hadron Colliders
We discuss the O(alpha) electroweak radiative corrections to W and Z boson
production and their impact on the measurement of the W mass at hadron
colliders. The results of recent improved calculations are presented. We also
briefly discuss the O(alpha) corrections to Drell-Yan production in the high
invariant mass region.Comment: 12 pages latex, uses aipproc.sty, 6 postscript figures, to appear in
the Proceedings of the MRST Conference, Rochester, NY, May 8-9, 200
Measuring the W Boson Mass at Hadron Colliders
We discuss the prospects for measuring the W mass in Run II of the Tevatron
and at the LHC. The basic techniques used to measure M_W are described and the
statistical, theoretical and detector-related uncertainties are discussed in
detail.Comment: Latex, 13 pages, 6 figures, 1 table, invited talk presented at the
Mini-Workshop ``Electroweak Precision Data and the Higgs Mass'', DESY
Zeuthen, Germany, February 28 - March 1, 2003, to appear in the Proceeding
Measuring Trilinear Gauge Boson Couplings at Hadron and Lepton Colliders
We discuss the measurement of the () gauge boson
couplings in present and future collider experiments. The major goals of such
experiments will be the confirmation of the Standard Model (SM) predictions and
the search for signals of new physics. The present limits on these couplings
from Tevatron and LEP2 experiments as well as the expectations from future
hadron and lepton collider experiments are summarized. We also study the impact
of initial state radiation on the sensitivity limits which can be achieved at
the NLC and a collider.Comment: LaTeX, uses aipproc.cls, aipproc.sty, 11 pages, 3 figures, talk given
at the Workshop on Physics at the First Muon Collider, Fermilab, November
1997, to appear in the Proceeding
Electroweak Radiative Corrections to Weak Boson Production at Hadron Colliders
We summarize the status of calculations of the electroweak radiative
corrections to W and Z boson production via the Drell-Yan mechanism at hadron
colliders. To fully exploit the precision physics potential of the
high-luminosity environment of the Fermilab Tevatron pbar p (Run II) and the
CERN LHC pp colliders, it is crucial that the theoretical predictions are well
under control. The envisioned precision physics program includes a precise
measurement of the W boson mass and width, and the (leptonic) weak mixing
angle, as well as probing the Standard Model (SM) of electroweak interactions
at the highest accessible center-of-mass energies. Some numerical results are
presented.Comment: Latex, 5 pages, 4 figures, talk given by UB at RADCOR2002/Loops and
Legs, Kloster Banz, Germany, Sep. 2002, to appear in the Proceeding
Finite Width Effects and Gauge Invariance in Radiative Production and Decay
The naive implementation of finite width effects in processes involving
unstable particles can violate gauge invariance. For the example of radiative
production and decay, , at tree level, it is
demonstrated how gauge invariance is restored by including the imaginary part
of triangle graphs in addition to resumming the imaginary contributions to the
vacuum polarization. Monte Carlo results are presented for the Fermilab
Tevatron.Comment: 10 pages, Revtex, 3 figures submitted separately as uuencoded tarred
postscript files, the complete paper is available at
ftp://phenom.physics.wisc.edu/pub/preprints/1995/madph-95-878.ps.Z or
http://phenom.physics.wisc.edu/pub/preprints/1995/madph-95-878.ps.
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