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Showing 1 to 20 of 25 for “"proton-antiproton collisions"”.
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Search for Second-Generation Leptoquarks in Proton-Antiproton Collisions
… leptoquarks (LQ_2) in around 114 pb^-1 of proton-antiproton collisions, recorded with the D0 detector between September 2002 and June 2003 at a centre-of-mass energy of sqrt{s} = 1.96 TeV. The predictions of the Standard Model and models including scalar leptoquark production are compared …
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A search for top quarks in proton-antiproton collisions using dileptons
A search for tt pairs in pp collisions with a center of mass energy $\sqrt s$ = 1.8TeV is presented. The analysis looks for tt pairs which decayed through the chain $\bar {tt}\to W\sp+bW\sp-\bar b\to\ell\sp+\bar \nu b\ell\sp-\nu\bar b$ where one of the b quarks is explicitly identified. In a sample …
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Search for magnetic monopoles possibly produced by proton-antiproton collisions at the Tevatron collider.
… exist, they could have been produced by the proton-antiproton collisions at the Tevatron collider---the highest energy accelerator existing in the world, and trapped in the CDF and DO detectors. We took Al, Be, and Pb samples from the Tevatron and used the induction technique with SQUIDs …
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Study of muons associated with jets in proton-antiproton collisions at sqrt.s = 1.8 TeV
Production of heavy quark flavors in proton-antiproton collisions with a center-of-mass energy of 1.8 $\times$ 10$\sp{12}$ electron volts is studied for events containing hadronic jets with a nearby muon track, where both the jet and the muon are produced at large angles from the incident beams. …
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Measurement of Z Boson Transverse Momentum In Proton-Antiproton Collisions At sqrt(s)=1.96 TeV
This dissertation describes a measurement of the shape of the boson transverse momentum distribution in $p\bar{p}\rightarrow Z/\gamma^{*}\rightarrow e^+e^- +X$ events at a center-of-mass energy of 1.96 TeV. The measurement is made for events with electron-positron mass between $70 < M_{ee} < 110$ …
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Observation of tungsten ---> muon-neutrino decays in proton-antiproton collisions at sqrt. s = 1.8 TeV
… of stopped positively charged kaons, produced in proton-antiproton annihilations at rest, has been measured with good momentum resolution $(\delta p/p$ = 1.5%) and high statistics ($\sim$300,000 potential decays). The data were obtained with the Experiment PS183 magnetic pair spectrometer at LEAR, …
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Direct Measurement of the W Boson Decay Width in Proton-Antiproton Collisions at sqrt(s)=1.96 TeV
This dissertation describes a direct measurement of the W boson total decay width, using the DZero detector at the Fermilab Tevatron Collider. The measurement uses an integrated luminosity of 177.3 pb-1 data, collected during the 2002-2003 run. The width is determined from the shape of the …
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A Measurement of B Hadron Correlations in Proton-Antiproton Collisions at Center of Mass Energy = 1.8 TeV
… a study of B hadron correlations in pp¯ collisions at s = 1.8 TeV. Events containing a bb¯ pair are identified by the presence of an energetic electron or muon and both B hadrons in the event are located by reconstructing their decay vertices using precision charged-particle …
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A measurement of B hadron correlations in proton-antiproton collisions at center of mass energy = 1.8 TeV
Submitted by Meng Tao (mengtao2@illinois.edu) on 2012-10-23T19:27:50Z No. of bitstreams: 1 Lannon_Kevin.pdf: 4162855 bytes, checksum: c5206b367dabcd237551a922275fc6f7 (MD5)
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Observation of W [right arrow] [mu][nu] decays in proton-antiproton collisions at [square root]s = 1.8 TeV
… vector boson has been observed in pp collisions at a center-of-mass energy of 1.8 TeV at the Fermilab Tevatron collider. Details of the CDF detector are given and event selection criteria are developed. A cross section times branching ratio, based on a sample of three W --+ J-lV …
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Measurement of the Diffractive Structure Function of the Antiproton in Proton-Antiproton Collisions at √s = 1800 and 630 GeV
… diffractive structure function FjjD of the antiproton obtained from a study of single diffractive dijet events produced in association with a leading antiproton in pp̄ collisions at the center-of-mass energy √s = 1800 and 630 GeV is presented. Inclusive samples of single diffractive events …
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Measurement of the CP Asymmetry in Semimuonic B Decays Produced in Proton-Antiproton Collisions at Center of Mass Energy= 1.96 TeV
We measure the asymmetry between positive and negative same-sign muon pairs originating from semileptonic decays of pairs of B hadrons. Low transverse momentum dimuon pairs are evaluated to determine B hadron content using a log likelihood fit to two-dimensional impact parameter significance …
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A measurement of W boson-photon and Z boson-photon cross sections in the muon channel in 1.8 TeV proton-antiproton collisions
… in the muon channel in $\sqrt{s}$ = 1.8 TeV p-p collisions, from 3.54 $\pm$ 0.24 $pb\sp{-1}$ of muon W and Z data from the CDF 1988-89 Tevatron collider run. For photons in the central region ($\vert\eta\vert $ 5.0 GeV and lepton-photon angular separation $\Delta R\sb{\ell\sb\gamma} >$ 0.7, 5 …
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Analysis of the Vector Boson Self Interaction and the Search for Anomalous Couplings at Center-of-Mass Energy = 1.8 TeV Proton-Antiproton Collisions
Made available in DSpace on 2015-09-25T20:02:33Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3017052.pdf: 8821547 bytes, checksum: f5bb890607af3b59bcc503dca82c4078 (MD5) Previous issue date: 2001
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A Measurement of the Top-Antitop Production Cross Section in Proton-Antiproton Collisions at Center of Mass Energy = 1.96 TeV Using Soft Muon Tagging
Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs
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Measurement of the Top Quark-Antitop Quark Differential Cross Section, dsigma/dM(tt), in Proton-Antiproton Collisions at Center of Mass Energy = 1.96 TEV
… cross section, dsigma/dMtt¯, in pp¯ collisions at s = 1.96 TeV using 2.7 fb-1 of CDF II data. I find that dsigma/dMtt¯ is consistent with the Standard Model expectation, as modeled by PYTHIA with CTEQ5L parton distribution functions. I set limits on the ratio kappa/M Pl in the …
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Measurements of the B production cross section in proton-antiproton collisions at center of mass energy = 1.96 TeV using semileptonic decays of B hadrons
Submitted by Meng Tao (mengtao2@illinois.edu) on 2012-10-23T19:23:46Z No. of bitstreams: 1 Kraus_James.pdf: 4874409 bytes, checksum: 74194484a218fcd4e1133aab810f8fe0 (MD5)
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Measurement of the differential angular distribution of the W boson produced in association with jets in proton-antiproton collisions at sqrt (s)= 1.8 TeV
… cross section of the W boson produced in a proton-antiproton collider can be written as a sum of nine terms. Each term is a product of an analytical expression of the azimuthal and polar angles (cp and 0) of the charged lepton from the W decay measured in the W-rest frame (leptonic part) …
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Measurement of the Differential Angular Distribution of the W Boson Produced in Association With Jets in Proton -Antiproton Collisions at Center of Mass Energy = 1.8 TeV
We also present the Standard Model prediction for the W angular coefficients Ai as a function of pWT , using a W+jet Monte Carlo event generator, which includes gluon loops. The prediction for three of the angular coefficients (A1, A4 and A6) is presented for the first time.
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