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Discovery and Measurement of the Higgs Boson in the WW Decay Channel

2015-06-15 Science
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Release : 2015-06-15
Genre : Science
Kind : eBook
Book Rating : 897/5 ( reviews)

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Book Synopsis Discovery and Measurement of the Higgs Boson in the WW Decay Channel by : David Hall

Download or read book Discovery and Measurement of the Higgs Boson in the WW Decay Channel written by David Hall. This book was released on 2015-06-15. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes the stand-alone discovery and measurement of the Higgs boson in its decays to two W bosons using the Run-I ATLAS dataset. This is the most precise measurement of gluon-fusion Higgs boson production and is among the most significant results attained at the LHC. The thesis provides an exceptionally clear exposition on a complicated analysis performed by a large team of researchers. Aspects of the analysis performed by the author are explained in detail; these include new methods for evaluating uncertainties on the jet binning used in the analysis and for estimating the background due to associated production of a W boson and an off-shell photon. The thesis also describes a measurement of the WW cross section, an essential background to Higgs boson production. The primary motivation of the LHC was to prove or disprove the existence of the Higgs boson. In 2012, CERN announced this discovery and the resultant ATLAS publication contained three decay channels: gg, ZZ, and WW.

Discovery and Measurement of the Higgs Boson in the WW Decay Channel

2015
Download Discovery and Measurement of the Higgs Boson in the WW Decay Channel PDF Online Free

Author :
Release : 2015
Genre :
Kind : eBook
Book Rating : 900/5 ( reviews)

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Book Synopsis Discovery and Measurement of the Higgs Boson in the WW Decay Channel by : David Hall

Download or read book Discovery and Measurement of the Higgs Boson in the WW Decay Channel written by David Hall. This book was released on 2015. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes the stand-alone discovery and measurement of the Higgs boson in its decays to two W bosons using the Run-I ATLAS dataset. This is the most precise measurement of gluon-fusion Higgs boson production, and is among the most significant results attained at the LHC. The thesis provides an exceptionally clear exposition on a complicated analysis performed by a large team of researchers. Aspects of the analysis performed by the author are explained in detail; these include new methods for evaluating uncertainties on the jet binning used in the analysis, and for estimating the background due to associated production of a W boson and an off-shell photon. The thesis also describes a measurement of the WW cross section, an essential background to Higgs boson production. The primary motivation of the LHC was to prove or disprove the existence of the Higgs boson. In 2012, CERN announced this discovery and the resultant ATLAS publication contained three decay channels: gg, ZZ, and WW.

Discovery Of The Higgs Boson

2016-08-26 Science
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Release : 2016-08-26
Genre : Science
Kind : eBook
Book Rating : 46X/5 ( reviews)

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Book Synopsis Discovery Of The Higgs Boson by : Aleandro Nisati

Download or read book Discovery Of The Higgs Boson written by Aleandro Nisati. This book was released on 2016-08-26. Available in PDF, EPUB and Kindle. Book excerpt: The recent observation of the Higgs boson has been hailed as the scientific discovery of the century and led to the 2013 Nobel Prize in physics. This book describes the detailed science behind the decades-long search for this elusive particle at the Large Electron Positron Collider at CERN and at the Tevatron at Fermilab and its subsequent discovery and characterization at the Large Hadron Collider at CERN. Written by physicists who played leading roles in this epic search and discovery, this book is an authoritative and pedagogical exposition of the portrait of the Higgs boson that has emerged from a large number of experimental measurements. As the first of its kind, this book should be of interest to graduate students and researchers in particle physics.

Discovery of the Higgs Boson with the Diphoton Decay Channel and First Differential Cross-section Measurements with ATLAS

2015
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Release : 2015
Genre :
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Book Rating : /5 ( reviews)

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Book Synopsis Discovery of the Higgs Boson with the Diphoton Decay Channel and First Differential Cross-section Measurements with ATLAS by :

Download or read book Discovery of the Higgs Boson with the Diphoton Decay Channel and First Differential Cross-section Measurements with ATLAS written by . This book was released on 2015. Available in PDF, EPUB and Kindle. Book excerpt: In July 2012, a Higgs boson was discovered by both the ATLAS and CMS experiments. This thesis presents the most recent version of the H ->[gamma][gamma] analysis that was used in the discovery. Since the discovery, focus has shifted to measure the properties of the Higgs boson. The analysis presented here is the analysis of the Higgs couplings, where events are divided into twelve categories defined to isolate the various production processes. Specific focus is given to the vector boson fusion (VBF) process where the Higgs boson is produced in association with two foward/backward jets. Due to its small theory errors, the VBF process can allow for very precise measurements of the Higgs boson's properties. Also presented are the first differential cross section measurements for the Higgs boson as measured in the diphoton decay channel. Distributions in data are unfolded to particle level and compared with the latest Monte Carlo event generators for gluon-gluon fusion. Many distributions concentrate on the kinematics of the Higgs boson produced in association with jets. Finally, a proposal for a 1-jet VBF region for the high-luminosity LHC is proposed based on the difference in rapidity between the Higgs boson and the leading jet. This region shows good discrimination power against gluon-gluon fusion events and has been shown to discriminate against beyond the Standard Model couplings.

Particle Physics Reference Library

2020 Heavy ions
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Author :
Release : 2020
Genre : Heavy ions
Kind : eBook
Book Rating : 079/5 ( reviews)

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Book Synopsis Particle Physics Reference Library by : Herwig Schopper

Download or read book Particle Physics Reference Library written by Herwig Schopper. This book was released on 2020. Available in PDF, EPUB and Kindle. Book excerpt: This first open access volume of the handbook series contains articles on the standard model of particle physics, both from the theoretical and experimental perspective. It also covers related topics, such as heavy-ion physics, neutrino physics and searches for new physics beyond the standard model. A joint CERN-Springer initiative, the "Particle Physics Reference Library" provides revised and updated contributions based on previously published material in the well-known Landolt-Boernstein series on particle physics, accelerators and detectors (volumes 21A, B1,B2,C), which took stock of the field approximately one decade ago. Central to this new initiative is publication under full open access

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