25,373 research outputs found
Searches for New Physics at the Tevatron in Photon and Jet Final States
We present the results of searches for non-standard model phenomena in photon
and jet final states. These searches use data from integrated luminosities of
0.7--2.7/fb of p-pbar collisions at sqrt(s)=1.96 TeV, collected with the CDF
and D0 detectors at the Fermilab Tevatron. No significant excess in data has
been observed. We report limits on the parameters of several models, including:
large extra dimension, compositeness, leptoquarks, and supersymmetry.Comment: Proceedings for the Moriond 2009 EW session 7 pages, 6 figure
Review of Recent Tevatron Jet, W/Z+Jet and Heavy-flavor Production Results
This document reviews several recent measurements at the Fermilab Tevatron,
including the cross sections of inclusive jet, dijet production, the cross
sections of electroweak boson (W or Z) production in association with inclusive
or heavy-flavor (b or c) jets, and b-jet shapes. In addition, searches for new
physics using the dijet angular distributions are discussed. These analyses are
based on integrated luminosities of 0.3--2.5/fb of p-pbar collisions at
\sqrt{s}=1.96 TeV, collected with the CDF and D0 detectors. The results
directly test the leading order and next-to leading order calculations of
perturbative quantum chromodynamics and provide constraints on the parton
distribution functions, gluon-splitting contribution, and physics beyond the
standard model.Comment: 10 pages, 7 figures, Proceedings for Photon 200
Search for Higgs at CDF
We present the results on the searches for the SM and the non-SM Higgs boson
production in ppbar collisions at sqrt(s)=1.96 TeV with the CDF detector at the
Fermilab Tevatron. Using data corresponding to 300--700pb-1, we search for the
Higgs boson in various production and decay channels. No signal is observed,
therefore, we set upper limits on the production cross-section times branching
fraction as a function of the Higgs boson mass.Comment: to appear in Proceedings of SUSY06, the 14th International Conference
on Supersymmetry and the Unification of Fundamental Interactions, UC Irvine,
California, 12-17 June 200
Search for Anomalous Production of Photon, b-jet, and Missing Transverse Energy at CDF
We report the results of two signature-based searches for new physics using
1.9- 2.0 fb-1 of data collected at the CDF experiment. Both analyses look in
events containing a photon, a b-tagged jet, and missing transverse energy. The
first search requires an additional jet. The second search requires an extra
electron or muon. No significant excess of events over the Standard Model
prediction is observed. We also describe the "CES/CPR" method which is used to
estimate the amount of mis-identified photons.Comment: Poster at the 34th International Conference on High Energy Physics,
ICHEP08, Philadelphia, USA, July 2008. 3 pages, LaTeX, 2 eps figure
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