Download or read book Electroweak Measurements from CDF and written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper highlights results from electroweak measurements recently obtained by the CDF and D0 collaborations in 1.8 TeV p[ovr p] collisions. The W decay width was extracted from the measurement of W/Z cross section times leptonic branching ratios, and in a direct measurement from a fit of the high-mass tail of the transverse mass spectrum of the W system. Various limits on anomalous gauge boson couplings were obtained in studies of W/Z+[gamma] processes, single leptonic WW, WZ production and double leptonic WW production. Values for[sigma]B(W[gamma][r-arrow]l[nu][gamma]), [sigma]B(Z[gamma][r-arrow]l[sup+]l[sup -][gamma]), and[sigma](p[ovr p][r-arrow]WW+ X) were measured. CDF also reports on the observation of an asymmetry in photon rapidity distributions as predicted by the Standard Model. 17 refs., 2 figs., 1 tab.
Download or read book Electroweak Measurements at CDF written by and published by . This book was released on 2005 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present some recent measurements on electroweak physics using data collected by the CDF experiment at the Tevatron proton anti-proton collider ((square root)s = 1.96 TeV) at Fermilab.
Download or read book Prospects for Electroweak Parameter Measurements at CDF written by and published by . This book was released on 1991 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electroweak Physics at CDF written by and published by . This book was released on 1996 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The CDF collaboration is engaged in a broad program of electroweak measurements. The production of WW, WZ, ZZ, W{sub {gamma}}, Z{sub {gamma}} and the high mass Drell Yan charge asymmetry will be discussed, along with a status report on extracting a new W mass from the most recent 90 pb−1 data sample.
Download or read book Prospects for Electroweak Parameter Measurements at CDF written by and published by . This book was released on 1991 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 4 pb−1 of 1.8 TeV {bar p}p collisions accumulated by the collider Detector at Fermilab (CDF) have allowed various measurements of electroweak parameters. Three years from now results should be forthcoming on a sample of about 80 pb−1 which, in the likely context of that time, will still be quite significant.
Download or read book Underr ttelse om w rkan af Spa wattn i synnerhet det s kallade Pouhon eller Spa minerale til deras tjenst som icke kunna komma p st llet der det h mtas utan betjena sig deraf sedan det blifwit f rdt written by and published by . This book was released on 1767 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electroweak Physics Prospects for CDF in Run II written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The CDF collaboration will vigorously pursue a comprehensive program of electroweak physics during Run II at the Tevatron based strongly on the successful Run I program. The Run IIa integrated luminosity goal of 2 fb[sup -1] will lead to a CDF dataset twenty times larger than that collected in Run I. In addition, an increase in the energy of the colliding beams from[radical]s= 1.80 TeV to[radical]s= 1.96 TeV for Run II provides a 10% increase in the W and Z boson production cross sections and a corresponding enlargement of the electroweak event samples. In the near term, CDF expects to collect a dataset with 2-3 times the integrated luminosity of Run I by September of 2003. Utilizing these new datasets CDF will be able to make improved, precision measurements of Standard Model electroweak parameters including M[sub W], M[sub top], [Lambda][sub W], and sin[sup 2][theta][sub W][sup eff]. The goal of these measurements will be to improve our understanding of the self-consistency of the Standard Model and knowledge of the Higgs boson mass within the model. The top plot in Fig. 1 illustrates our current knowledge of the Standard Model Higgs mass based on measurements of M[sub W] and M[sub top]. The constraints imposed by combined CDF and D0 Run I measurements of M[sub W] (80.456[+-] 0.059GeV/c[sup 2]) and M[sub top] (174.3[+-] 5.1GeV/c[sup 2]) are illustrated by the shaded oval region on the plot. The hatched rectangle shows the additional constraint imposed by the recent LEP2 measurement of M[sub W]. The bottom plot in Fig. 1 illustrates the expected improvement in these constraints based on Run II CDF measurements utilizing a 2 fb[sup -1] dataset. The shaded oval region in this plot is based on current estimates of a 40 MeV/c[sup 2] uncertainty for measuring M[sub W] and a 2-3 GeV/c[sup 2] uncertainty for measuring M[sub top].
Download or read book Electroweak Physics with CDF written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The CDF experiment at the Tevatron has used p{bar p} collisions at (square root)s = 1.96 TeV to perform electroweak physics measurements. A program of precision electroweak tests of SM started measuring W and Z bosons cross section using different leptonic final states, evaluating dielectron Forward-Backward Asymmetry A{sub FB} and di-boson cross section production.
Download or read book Precision Electroweak Physics at the Tevatron written by and published by . This book was released on 2007 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of Tevatron electroweak measurements performed by the CDF and D0 experiments is presented. The current status and future prospects for high precision measurements of electroweak parameters and detailed studies of boson production are highlighted.
Download or read book Electroweak Measurements at the Tevatron written by Jose E. Garcia and published by . This book was released on 2006 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent Electroweak measurements by the CDF and D0 collaborations in p{bar p} collisions {radical}s = 1.96 TeV are presented here. Measurements of W, Z and diboson production cross sections as well as W asymmetry using integrated luminosities up to 800 pb{sup -1} are reviewed. Limits on triple gauge anomalous couplings on diboson production are discussed elsewhere.
Download or read book Electroweak and Top Physics at CDF in Run II written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precision Tests Of The Standard Electroweak Model written by Paul G Langacker and published by World Scientific. This book was released on 1995-02-23 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt: High precision measurements of weak neutral current and charged current processes and of the properties of the Z and W bosons have established the standard electroweak model as correct down to a distance scale of 10-16 cm, and are a sensitive probe of possible underlying physics. In this book, all aspects of the program are considered in detail, including the structure of the standard model, radiative corrections, high precision experiments, and their implications. The major classes of experiments are surveyed, covering the experiments themselves, the data analysis, results, and prospects.This volume is a detailed reference for theoretical and experimental researchers, as well as an introductory text for advanced students.
Download or read book Precision Electroweak Measurements and Constraints on the Standard Model written by and published by . This book was released on 2010 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: This note presents constraints on Standard Model parameters using published and preliminary precision electroweak results obtained at the electron-positron colliders LEP and SLC. The results are compared with precise electroweak measurements from other experiments, notably CDF and D0 at the Tevatron. Constraints on the input parameters of the Standard Model are derived from the combined set of results obtained in high-Q2 interactions, and used to predict results in low-Q2 experiments, such as atomic parity violation, Moeller scattering, and neutrino-nucleon scattering. The main changes with respect to the experimental results presented in 2009 are new combinations of results on the width of the W boson and the mass of the top quark.
Download or read book Eps High Energy Physics 95 Proceedings Of The International Europhysics Conference written by Catherine Vander Velde and published by World Scientific. This book was released on 1996-05-28 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electroweak Physics at LEP and LHC written by Arno Straessner and published by Springer. This book was released on 2010-03-14 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: During more than 10 years, from 1989 until 2000, the LEP accelerator and the four LEP experiments, ALEPH, DELPHI, L3 and OPAL, have taken data for a large amount of measurements at the frontier of particle physics. The main outcome is a thorough and successful test of the Standard Model of electroweak interactions. Mass and width of the Z and W bosons were measured precisely, as well as the Z and photon couplings to fermions and the couplings among gauge bosons. The rst part of this work will describe the most important physics results of the LEP experiments. Emphasis is put on the properties of the W boson, which was my main research eld at LEP. Especially the precise determination of its mass and its couplings to the other gauge bosons will be described. Details on physics effects like Colour Reconnection and Bose-Einstein Correlations in W-pair events shall be discussed as well. A conclusive summary of the current electroweak measurements, including low-energy results, as the pillars of possible future ndings will be given. The important contributions from Tevatron, like the measurement of the top quark and W mass, will round up the present day picture of electroweak particle physics. This is an open access book.
Download or read book Combination of the CDF and D0 Effective Leptonic Electroweak Mixing Angles written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: CDF and D0 have measured the effective leptonic weak mixing angle $sin^2 \theta^{lept}_{eff}$, using their full Tevatron datasets. This note describes the Tevatron combination of these measurements, and the zfitter standard model-based inference of the on-shell electroweak mixing angle $sin^2 \theta_W$, or equivalently, the W-boson mass. The combination of CDF and D0 results yields: $sin^2 \theta^{lept}_ {eff}$ = 0.23179 ± 0.00035, and $sin^2 \theta_W$ = 0.22356 ± 0.00035, or equivalently, $M_W$(indirect) = 80.351 ± 0.018 GeV/$c^2$.
Download or read book 91 Electroweak Interactions and Unified Theories written by J. Thanh Van Tran and published by Atlantica Séguier Frontières. This book was released on 1991 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
