Evidence For Wz Production And A Measurement Of The Wz Production Cross Section
DOWNLOAD
Download Evidence For Wz Production And A Measurement Of The Wz Production Cross Section PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Evidence For Wz Production And A Measurement Of The Wz Production Cross Section book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Evidence For Wz Production And A Measurement Of The Wz Production Cross Section
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2007
Evidence For Wz Production And A Measurement Of The Wz Production Cross Section written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
This dissertation describes a test of the Standard Model (SM) of particle physics by measuring the probability, or cross section, of simultaneously producing a W boson and a Z boson from proton-antiproton collisions. The SM predicts the cross section of WZ production to be 3.68 ± 0.25 pb. The SM and physics of WZ production are described in Chapter 2 of this dissertation. The 1.96 TeV center-of-mass energy proton-antiproton collisions are provided by the Fermi National Accelerator Laboratory (FNAL) Tevatron Collider. The W and Z particles are detected using the D0 detector, which is described in Chapter 3. The data were collected by the detector during 2002-2006 corresponding to 1 fb−1 of p{bar p} collisions. This data set is described in Chapter 6. The measurement uses the trilepton (e[nu]ee, [mu][nu]ee, e[nu][mu][mu], and [mu][nu][mu][mu]) decay channels, in which a W decays to a charged lepton plus a neutrino and a Z decays to a pair of charged leptons. The W and Z particle selection criteria, detection efficiency, and background determination are described in Chapter 7. We observe 13 candidate events in 1 fb−1 of p{bar p} collisions. In this data set we expect to see 4.5 ± 0.6 background events, and we expect to see 9.2 ± 1.0 signal events. The probability of 4.5 ± 0.6 background events to fluctuate to 13 or more events is 1.2 x 10−3 which is a 3.0 [sigma] deviation from the background estimate. A log likelihood method is used to determine the most likely cross section as determined by the measured signal efficiencies, the expected backgrounds, and the observed data. Presented in Chapter 8 is a measurement of the cross section for p{bar p} → WZ + X at √s = 1.96 TeV. The WZ diboson production cross section is measured to be [sigma]{sub WZ} = 2.7{sub -1.3}{sup +1.7} pb. This is in agreement with the predicted Standard Model cross section.
Evidence For Wz Production And A Measurement Of The Wz Production Cross Section
DOWNLOAD
Author : James D. Degenhardt
language : en
Publisher:
Release Date : 2007
Evidence For Wz Production And A Measurement Of The Wz Production Cross Section written by James D. Degenhardt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
High Energy Physics
DOWNLOAD
Author :
language : en
Publisher: World Scientific
Release Date : 1981
High Energy Physics written by and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with categories.
Deep Inelastic Scattering Dis 2006 Proceedings Of The 14th International Workshop
DOWNLOAD
Author : Masahiro Kuze
language : en
Publisher: World Scientific
Release Date : 2007-01-23
Deep Inelastic Scattering Dis 2006 Proceedings Of The 14th International Workshop written by Masahiro Kuze and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-01-23 with Science categories.
These proceedings present the most up-to-date status of deep inelastic scattering (DIS) physics. Topics such as structure function measurements and phenomenology, quantum chromodynamics (QCD) studies in DIS and photoproduction, spin physics and diffractive interactions are reviewed in detail, with emphasis on those studies that push the test of QCD and the Standard Model to the limits of their present range of validity, towards both the very high and the very low four-momentum transfers in lepton-proton scattering.
Electroweak Physics At The Large Hadron Collider With The Atlas Detector
DOWNLOAD
Author : Elodie Resseguie
language : en
Publisher: Springer Nature
Release Date : 2020-11-03
Electroweak Physics At The Large Hadron Collider With The Atlas Detector written by Elodie Resseguie and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-03 with Science categories.
This thesis discusses searches for electroweakly produced supersymmetric partners of the gauge and the Higgs bosons (gauginos and higgsinos) decaying to multiple leptons, using pp collisions at sqrt(s) = 13 TeV. The thesis presents an in-depth study of multiple searches, as well as the first 13 TeV cross section measurement for the dominant background in these searches, WZ production. Two searches were performed using 36.1/fb of data: the gaugino search, which makes use of a novel kinematic variable, and the higgsino search, which produced the first higgsino limits at the LHC. A search using 139/fb of data makes use of a new technique developed in this thesis to cross check an excess of data above the background expectation in a search using a Recursive Jigsaw Reconstruction technique. None of the searches showed a significant excess of data, and limits were expanded with respect to previous results. These searches will benefit from the addition of luminosity during HL-LHC; however, the current detector will not be able to withstand the increase in radiation. Electronics for the detector upgrade are tested and irradiated to ensure their performance.
Cern Courier
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2015
Cern Courier written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Nuclear energy categories.
Fundamental Interactions Proceedings Of The 21st Lake Louise Winter Institute
DOWNLOAD
Author : Alan Astbury
language : en
Publisher: World Scientific
Release Date : 2006-12-29
Fundamental Interactions Proceedings Of The 21st Lake Louise Winter Institute written by Alan Astbury and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-12-29 with Science categories.
This proceedings volume contains the latest developments in particle physics in collider experiments. The contributions cover new results such as the production of quark-gluon plasma in the heavy-ion collider, the new techniques for precision measurement at low energies, and the status of neutrino physics at various laboratories including the new facilities that are at the planning stage.
Particle Physics At The Year Of Astronomy
DOWNLOAD
Author : A. I. Studenikin
language : en
Publisher: World Scientific
Release Date : 2011
Particle Physics At The Year Of Astronomy written by A. I. Studenikin and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Science categories.
These proceedings are devoted to a wide variety of both theoretical and experimental areas in particle physics. The topics include physics at accelerators and studies of Standard Model and Beyond, neutrino and astroparticle physics, cosmology, CP Violation and rare decays, hadron physics, and new developments in quantum field theory. The papers of the volume reveal the present status and new development in the above mentioned items. In particular, the first results on measurement of LHC pp collision events are also reported.
Symmetry
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2006
Symmetry written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Nuclear physics categories.
The Standard Theory Of Particle Physics
DOWNLOAD
Author : Luciano Maiani
language : en
Publisher: World Scientific Publishing Company
Release Date : 2016-08-25
The Standard Theory Of Particle Physics written by Luciano Maiani and has been published by World Scientific Publishing Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-25 with Science categories.
The book gives a quite complete and up-to-date picture of the Standard Theory with an historical perspective, with a collection of articles written by some of the protagonists of present particle physics. The theoretical developments are described together with the most up-to-date experimental tests, including the discovery of the Higgs Boson and the measurement of its mass as well as the most precise measurements of the top mass, giving the reader a complete description of our present understanding of particle physics.