Download or read book W Z Jets and W Z HF Production at the Tevatron written by and published by . This book was released on 2013 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Single W and Z Production Asymmetry and V Jets at the Tevatron written by and published by . This book was released on 2013 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Search for W Z Production in the Tri lepton Channel at the Tevatron and Limits of the W W Z Vertex Anomalous Couplings written by Patrick Elmo Gartung and published by . This book was released on 1998 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Search for WZ ZZ Production in the Lepton s MET Jets Channel with the CDF Experiment at the Tevatron Collider written by and published by . This book was released on 2014 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis we present a search for the WZ and ZZ production in a final state ("W+2 jets") with a leptonically-decaying W and two energetic jets. We use the full dataset (+"Ldt = 8:9 fb-1) recorded with the CDF detector at Fermilab. The challenge consists in extracting the small Z-hadronic peak from the large amount of background processes. Those processes also include the WW, whose hadronic peak cannot be distinguished from the Z peak, due to the poor calorimeter resolution. In the past such a signature was used to measure the diboson cross section, which is highly dominated by the WW cross section.
Download or read book Z scaling of Jet Production at the Tevatron written by T. G. Dedovič and published by . This book was released on 2004 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evidence of WW WZ Production with Lepton Jets Final States in P Anti p Collisions at S 1 2 written by and published by . This book was released on 2008 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the first evidence of WW+WZ production with lepton+jets final states at a hadron collider. The data correspond to 1.07 inverse femtobarns of integrated luminosity collected with the D0 detector at the Fermilab Tevatron Collider in proton-antiproton collisions at sqrt(s)=1.96 TeV. The observed cross section for WW+WZ production is 20.2 +/- 4.5 pb, consistent with the SM prediction of 16.1 +/- 0.9 pb. The probability for background fluctuations to produce an excess equal to or larger than that observed is estimated to be 5.4e-6, corresponding to a significance of 4.4 standard deviations.
Download or read book Measurements of the WZ Di boson Production Cross Section at center of Mass Energy written by Rahmi Ünalan and published by . This book was released on 2009 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electroweak Symmetry Breaking And New Physics At The Tev Scale written by Timothy L Barklow and published by World Scientific. This book was released on 1997-05-05 with total page 749 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an expanded version of the report by the Electroweak Symmetry Breaking and Beyond the Standard Model Working Group which was contributed to Particle Physics — Perspectives and Opportunities, a report of the Division of Particles and Fields Committee for Long Term Planning. One of the Working Group's primary goals was to study the phenomenology of electroweak symmetry breaking and attempt to quantify the “physics reach” of present and future colliders. Their investigations encompassed the Standard Model — with one doublet of Higgs scalars — and approaches to physics beyond the Standard Model. These include models of low-energy supersymmetry, dynamical electroweak symmetry breaking, and a variety of extensions of the Standard Model with new particles and interactions. The Working Group also considered signals of new physics in precision measurements arising from virtual processes and examined experimental issues associated with the study of electroweak symmetry breaking and the search for new physics at present and future hadron and lepton colliders.This volume represents an important contribution to the efforts being made to advance the frontiers of particle physics.
Download or read book Search for WZ ZZ Production with MET Jets with b Enhancement at sqrt s written by and published by . This book was released on 2011 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diboson production (WW + WZ + ZZ) has been observed at the Tevatron in hadronic decay modes dominated by the WW process. This paper describes the measurement of the cross section of WZ and ZZ events in final states with large E{sub T} and using b-jet identification as a tool to suppress WW contributions. Due to the limited energy resolution, we cannot distinguish between partially hadronic decays of WZ and ZZ, and we measure the sum of these processes. The number of signal events is extracted using a simultaneous fit to the invariant mass distribution of the two jets for events with two b-jet candidates and events without two b-jet candidates. We measure a cross section [sigma](p{bar p} 2!WZ, ZZ) = 5.8{sub -3.0}{sup +3.6} pb, in agreement with the standard model.
Download or read book Calculations of Z Plus Four Jet Production at the Tevatron written by Vernon Barger and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of WW and WZ Production in the Lepton Plus Heavy Flavor Jets Final State at CDF written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the CDF measurement of the diboson WW and WZ production cross section in a final state consistent with leptonic W decay and jets originating from heavy flavor quarks, based on the full Tevatron Run II dataset. The analysis of the di-jet invariant mass spectrum allows the observation of 3.7 sigma evidence for the combined production processes of either WW or WZ bosons. The different heavy flavor decay pattern of the W and Z bosons and the analysis of the secondary-decay vertex properties allow to independently measure the WW and WZ production cross section in a hadronic final state. The measured cross sections are consistent with the standard model predictions and correspond to signal significances of 2.9 and 2.1 sigma for WW and WZ production, respectively.
Download or read book Inclusive jet production studies at the Tevatron using the CDF detector written by Olga Norniella Francisco and published by . This book was released on 2007 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book From The Tevatron To The Lhc Physics At Large Accelerators Proceedings Of The Xxiv International Meeting On Fundamen written by Antonio Ferrer and published by World Scientific. This book was released on 1997-07-15 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book collects a series of papers presented at the XXIV International Meeting on Fundamental Physics. This annual conference is devoted to reviewing current topics in the field of high energy physics. From the Tevatron to the LHC reviews the present status of experiments at large accelerators (Tevatron, LEP, LHC) and deals with selected subjects like CP violation, B physics, glueballs, neutrinos and supersymmetry.
Download or read book WW and WZ Production at the Tevatron written by and published by . This book was released on 2007 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes recent measurements of the production properties of WW and WZ pairs of bosons at the Tevatron. This includes measurements of the cross-section and triple gauge couplings in the WW process and the first evidence for WZ production.
Download or read book Measurement of WW WZ Production Cross Section and Study of the Dijet Mass Spectrum in the L Jets Final State at CDF written by and published by . This book was released on 2010 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the measurement of the WW and WZ production cross section in p$ar{p}$ collisions at √s = 1.96 TeV, in a final state consisting of an electron or muon, neutrino and jets. The data analyzed were collected by the CDF II detector at the Tevatron collider and correspond to 4.3 fb-1 of integrated luminosity. The analysis uses a fit to the dijet mass distribution to extract the diboson contribution. We observe 1582 ± 275(stat.) ± 107(syst.) diboson candidate events and measure a cross section of ?WW/WZ = 18.1 ± 3.3(stat.) ± 2.5(syst.) pb, consistent with the Standard Model prediction of 15.9 ± 0.9 pb. The best fit to the dijet mass of the known components shows a good agreement with the data except for the [120, 160] GeV/c2 mass range, where an excess is observed. We perform detailed checks of our background model and study the significance of the excess, assuming an additional gaussian component with a width compatible with the expected dijet mass resolution. A standard ??2 test of the presence of the additional component, returns a p-value of 4.2 x 10-4 when standard sources of systematics are considered, corresponding to a significance of 3.3?.
Download or read book Z Boson Transverse Momentum Distribution and ZZ and WZ Production written by Mika Vesterinen and published by Springer Science & Business Media. This book was released on 2012-06-30 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work develops novel data analysis techniques enabling aspects of the Standard Model of particle physics to be tested with unprecedented precision using data from the DZero experiment at the high energy “Tevatron” proton-antiproton collider at Fermilab, Chicago. Vesterinen's measurements of the transverse momentum of Z bosons using the novel variable φ* have exposed deficiencies in the current state-of-the-art theoretical predictions for vector boson production at hadron colliders. These techniques are now being used in the experiments at CERN’s Large Hadron Collider (LHC) and have stimulated considerable interest in the theoretical particle physics community. Furthermore, Vesterinen's measurements of the cross sections for the production of pairs of vector bosons (WZ and ZZ) are to date the most precise ever made.
Download or read book Evidence for WZ Production and a Measurement of the WZ Production Cross Section written by James D. Degenhardt and published by . This book was released on 2007 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
