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Direct And Indirect Measurements Of The W Boson Mass At Fermilab
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Book Synopsis Direct and Indirect Measurements of the W Boson Mass at Fermilab by :
Download or read book Direct and Indirect Measurements of the W Boson Mass at Fermilab written by and published by . This book was released on 1998 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented are the direct measurements of the W boson mass from the CDF and D0 experiments at the Fermilab p{bar p} collider using data from the 1994--1995 run. The W from the D0 experiment is 80.44 ± 0.12 GeV and the preliminary mass from CDF is 80.43 ± 0.16 GeV. Combining these mass values with the previous Tevatron measurements leads to a M{sub W} 80.41 ± 0.09 GeV. Also, presented is the new measurement of sin2 [Theta]{sub W}{sup on-shell} = 0.2199 ± 0.0020(stat) ± 0.0009(syst) from the deep inelastic neutrino scattering experiment (NuTeV) at Fermilab. In the context of the Standard Model this can be interpreted as a M{sub W} = 80.53 ± 0.11 GeV.
Book Synopsis Measurement of the W Boson Mass with the Collider Detector at Fermilab by : Andrew Scott Gordon
Download or read book Measurement of the W Boson Mass with the Collider Detector at Fermilab written by Andrew Scott Gordon and published by . This book was released on 1998 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Direct Measurement of the W Boson Width by :
Download or read book Direct Measurement of the W Boson Width written by and published by . This book was released on 2009 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a direct measurement of the width of the W boson using the shape of the transverse mass distribution of W → e[nu] candidates selected in 1 fb−1 of data collected with the D0 detector at the Fermilab Tevatron collider in p{bar p} collisions at √s = 1.96 TeV. We use the same methods and data sample that were used for our recently published W boson mass measurement, except for the modeling of the recoil, which is done with a new method based on a recoil library. Our result, 2.028 ± 0.072 GeV, is in agreement with the predictions of the standard model and is the most precise direct measurement result from a single experiment to date.
Book Synopsis Measurement of the W Boson Mass at the Collider Detector at Fermilab from a Fit to the Transverse Momentum Spectrum of the Muon by :
Download or read book Measurement of the W Boson Mass at the Collider Detector at Fermilab from a Fit to the Transverse Momentum Spectrum of the Muon written by and published by . This book was released on 2007 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes a measurement of the W boson mass from a fit to the transverse momentum spectrum of the muon in W decay. In past measurements this technique was used as a cross-check, however, now presents the best method in terms of systematic uncertainty. We discuss all sources of systematic uncertainty with emphasis on those to which the muon p{sub T} measurement is particularly sensitive, specifically, those associated with modeling the production and decay of W bosons. The data were collected with the CDF II detector between March 2002 and September 2003 and correspond to an integrated luminosity of (191 ± 11) pb−1. We measure the W mass to be (80.316 ± 0.066{sub stat.} ± 0.051{sub syst.}) GeV/c2 = (80.316 ± 0.083) GeV/c2.
Book Synopsis Indirect Measurement of the Width of the W Boson at the D[0] Experiment by : Paul James Telford
Download or read book Indirect Measurement of the Width of the W Boson at the D[0] Experiment written by Paul James Telford and published by . This book was released on 2006 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the W Boson Mass at the Collider Detector at Fermilab from a Fit to the Transverse Momentum Spectrum of the Muon by : Ian E. Vollrath
Download or read book Measurement of the W Boson Mass at the Collider Detector at Fermilab from a Fit to the Transverse Momentum Spectrum of the Muon written by Ian E. Vollrath and published by . This book was released on 2007 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes a measurement of the W boson mass from a fit to the transverse momentum spectrum of the muon in W decay. In past measurements this technique was used as a cross-check, however, now presents the best method in terms of systematic uncertainty. We discuss all sources of systematic uncertainty with emphasis on those to which the Muon pT measurement is particularly sensitive, specifically, those associated with modelling the production and decay of W bosons. The data were collected with the CDF II detector between March 2002 and September 2003 and correspond to an integrated luminosity of (191 +/- 11) pb-1. We measure the W mass to be (80.316 +/- 0.066stat. +/- 0.051syst.) GeV/c2 = (80.316 +/- 0.083) GeV/ c2.
Book Synopsis A Precise Measurement of the $W$-boson Mass with the Collider Detector at Fermilab by :
Download or read book A Precise Measurement of the $W$-boson Mass with the Collider Detector at Fermilab written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A New Measurement of the W Boson Mass at D-Zero by :
Download or read book A New Measurement of the W Boson Mass at D-Zero written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a new measurement of the W mass using the W [yields] e[nu] data from the D0 forward detectors at the Fermilab Tevatron p[anti p] Collider. This is the first measurement of the W mass with electron candidates in the range 1.5
Book Synopsis Measurement of the W Boson Mass by :
Download or read book Measurement of the W Boson Mass written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a preliminary measurement of the[ital W] boson mass using data collected by the D[null] experiment at the Fermilab Tevatron during the 1994-1995 collider run 1b. We use[ital W][r-arrow][ital e][nu] decays to extract the[ital W] mass from the observed spectrum of transverse mass of the electron ([vert-bar][eta][vert-bar][lt] 1. 2) and the inferred neutrino We use[ital Z][sup 0][r-arrow][ital ee] decays to constrain our model of the detector response. We measure[ital m][sub W]/[ital m][sub Z]= 0.8815[+-] 0.0011([ital stat])[+-] 0.0014([ital syst]) and[ital m][sub W]= 80.38[+-] 0.07 ([ital W stat])[+-] 0.13([ital syst]) GeV. Combining this result with our previous measurement from the 1992-1993 data, we obtain[ital m][sub W]= 80.37[+-] 0.15 GeV (errors combined in quadrature).
Book Synopsis Particle Physics and Cosmology by : Howard E. Haber
Download or read book Particle Physics and Cosmology written by Howard E. Haber and published by World Scientific. This book was released on 2004 with total page 913 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the lecture courses conducted at the School of the Theoretical Advanced Study Institute (TASI, Colorado, USA) on Elementary Particle Physics in 2002. In this School, three series of lectures are presented in parallel in the area of phenomenology, TeV-scale physics, and astroparticles physics. The phenomenology lecture series covered a broad spectrum of standard research techniques used to interpret present day and future collider data. The TeV-scale physics lecture series focused on modern speculations about physics beyond the Standard Model, with an emphasis on supersymmetry and extra-dimensional theories. The lecture series on astroparticle physics treated recent developments in theories of dark matter and dark energy, the cosmic microwave background, and prospects for the upcoming era of gravitational wave astronomy. Contents: Phenomenology Lecture Series: Neutrinos (Y Grossman); Precision Electroweak Physics (K Matchev); Effective Field Theories (I Z Rothstein); Bottom Quark Physics and the Heavy Quark Expansion (M Luke); The Top Quark, QCD and New Physics (S Dawson); Tevatron Physics (J Womersley); TeV-Scale Physics Lecture Series: Non-Perturbative Sypersymmetry (J Terning); New Directions for New Dimensions: KaluzaOCoKlein Theory, Large Extra Dimensions and the Brane World (K R Dienes); New Ideas in Symmetry Breaking (M Quiros); Extra Dimensions and Branes (C Csaki); Astroparticle Physics Lecture Series: Introduction to Cosmology (M Trodden & S M Carroll); Dark Matter (K A Olive); Gravitational Waves from the Early Universe (A Buonanno). Readership: Researchers, academics and graduate students in high energy physics, mathematical physics and astrophysics."
Book Synopsis Particle Physics: Perspectives And Opportunities - Report Of The Dpf Committee On Long-term Planning by : Robert N Cahn
Download or read book Particle Physics: Perspectives And Opportunities - Report Of The Dpf Committee On Long-term Planning written by Robert N Cahn and published by World Scientific. This book was released on 1995-09-20 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the result of a broad-based and in-depth study of high energy physics commissioned by the Executive Committee of the Division of Particles and Fields of the American Physical Society. This year-long study was initiated in the early 1994, in the wake of the cancellation of the SSC, and is meant to complement the report of the Drell HEPAP subpanel, charged with providing a vision for the future of the field. The DPF study of high energy physics was organized on the basis of the working groups, each led by a number of co-conveners chosen among established leaders in the various subspecialties in the field. These conveners, in turn, organized their working groups by inviting other active workers in the discipline to participate and gathered further input from the community by holding a variety of specialized meetings and workshops. This book contains the final reports of the 11 working groups assembled for the study, along with an extended overview and executive summary by the editors.
Book Synopsis Top Quark Physics at Hadron Colliders by : Arnulf Quadt
Download or read book Top Quark Physics at Hadron Colliders written by Arnulf Quadt and published by Springer Science & Business Media. This book was released on 2007-08-16 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: This will be a required acquisition text for academic libraries. More than ten years after its discovery, still relatively little is known about the top quark, the heaviest known elementary particle. This extensive survey summarizes and reviews top-quark physics based on the precision measurements at the Fermilab Tevatron Collider, as well as examining in detail the sensitivity of these experiments to new physics. Finally, the author provides an overview of top quark physics at the Large Hadron Collider.
Book Synopsis Measurement of the Top Quark Mass in the Dilepton Final State Using the Matrix Element Method by : Alexander Grohsjean
Download or read book Measurement of the Top Quark Mass in the Dilepton Final State Using the Matrix Element Method written by Alexander Grohsjean and published by Springer Science & Business Media. This book was released on 2010-10-01 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main pacemakers of scienti?c research are curiosity, ingenuity, and a pinch of persistence. Equipped with these characteristics a young researcher will be s- cessful in pushing scienti?c discoveries. And there is still a lot to discover and to understand. In the course of understanding the origin and structure of matter it is now known that all matter is made up of six types of quarks. Each of these carry a different mass. But neither are the particular mass values understood nor is it known why elementary particles carry mass at all. One could perhaps accept some small generic mass value for every quark, but nature has decided differently. Two quarks are extremely light, three more have a somewhat typical mass value, but one quark is extremely massive. It is the top quark, the heaviest quark and even the heaviest elementary particle that we know, carrying a mass as large as the mass of three iron nuclei. Even though there exists no explanation of why different particle types carry certain masses, the internal consistency of the currently best theory—the standard model of particle physics—yields a relation between the masses of the top quark, the so-called W boson, and the yet unobserved Higgs particle. Therefore, when one assumes validity of the model, it is even possible to take precise measurements of the top quark mass to predict the mass of the Higgs (and potentially other yet unobserved) particles.
Book Synopsis Precision Tests Of The Standard Electroweak Model by : Paul G Langacker
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.
Book Synopsis A Precision Measurement of the W Boson Mass at by :
Download or read book A Precision Measurement of the W Boson Mass at written by and published by . This book was released on 2009 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: I present the first measurement of the W boson mass in the electron decay channel using the Run II D0 detector at the Fermilab Tevatron Collider. The data used was collected from 2002 to 2006 and the integrated luminosity is 1 fb−1. The W boson mass was determined from the likelihood fit to the measured data distribution. The mass value is found to be 80.401 ± 0.023(stat) ± 0.037(syst) GeV = 80.401 ± 0.044 GeV using the transverse mass spectrum, which is the most precise measurement from one single experiment to date. This result puts tighter constraints on the mass of the standard model Higgs boson. I also present three other measurements that can help to reduce the theoretical uncertainties for the future W mass measurements.
Book Synopsis Introduction to Particle and Astroparticle Physics by : Alessandro De Angelis
Download or read book Introduction to Particle and Astroparticle Physics written by Alessandro De Angelis and published by Springer. This book was released on 2018-06-19 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces particle physics, astrophysics and cosmology. Starting from an experimental perspective, it provides a unified view of these fields that reflects the very rapid advances being made. This new edition has a number of improvements and has been updated to describe the recent discovery of gravitational waves and astrophysical neutrinos, which started the new era of multimessenger astrophysics; it also includes new results on the Higgs particle. Astroparticle and particle physics share a common problem: we still don’t have a description of the main ingredients of the Universe from the point of view of its energy budget. Addressing these fascinating issues, and offering a balanced introduction to particle and astroparticle physics that requires only a basic understanding of quantum and classical physics, this book is a valuable resource, particularly for advanced undergraduate students and for those embarking on graduate courses. It includes exercises that offer readers practical insights. It can be used equally well as a self-study book, a reference and a textbook.
Download or read book The H Boson written by Costas Bachas and published by Birkhäuser. This book was released on 2017-09-22 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a detailed description of the seminal theoretical construction in 1964, independently by Robert Brout and Francois Englert, and by Peter W. Higgs, of a mechanism for short-range fundamental interactions, now called the Brout-Englert-Higgs (BEH) mechanism. It accounts for the non-zero mass of elementary particles and predicts the existence of a new particle - an elementary massive scalar boson. In addition to this the book describes the experimental discovery of this fundamental missing element in the Standard Model of particle physics. The H Boson, also called the Higgs Boson, was produced and detected in the Large Hadron Collider (LHC) of CERN near Geneva by two large experimental collaborations, ATLAS and CMS, which announced its discovery on the 4th of July 2012.This new volume of the Poincaré Seminar Series, The H Boson, corresponds to the nineteenth seminar, held on November 29, 2014, at Institut Henri Poincaré in Paris.
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