Combined Cdf And D0 Upper Limits On Standard Model Higgs Boson Production With Up To 6 7 Fb 1 Of Data
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Higgs Boson Mass Predicted By The Four Color Theorem
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Author : Ashay Dharwadker
language : en
Publisher: Institute of Mathematics
Release Date : 2009-12-28
Higgs Boson Mass Predicted By The Four Color Theorem written by Ashay Dharwadker and has been published by Institute of Mathematics this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-12-28 with Mathematics categories.
We show that the mathematical proof of the four color theorem yields a perfect interpretation of the Standard Model of particle physics. The steps of the proof enable us to construct the t-Riemann surface and particle frame which forms the gauge. We specify well-defined rules to match the Standard Model in a one-to-one correspondence with the topological and algebraic structure of the particle frame. This correspondence is exact - it only allows the particles and force fields to have the observable properties of the Standard Model, giving us a Grand Unified Theory. In this paper, we concentrate on explicitly specifying the quarks, gauge vector bosons, the Standard Model scalar Higgs boson and the weak force field. Using all the specifications of our mathematical model, we show how to calculate the values of the Weinberg and Cabibbo angles on the particle frame. Finally, we present our prediction of the Higgs boson mass M = 126 GeV, as a direct consequence of the proof of the four color theorem.
Electroweak Physics At Lep And Lhc
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Author : Arno Straessner
language : en
Publisher: Springer
Release Date : 2010-03-14
Electroweak Physics At Lep And Lhc written by Arno Straessner and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-03-14 with Science categories.
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.
Top Quark Pair Production
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Author : Anna Christine Henrichs
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-10-04
Top Quark Pair Production written by Anna Christine Henrichs and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-04 with Science categories.
Before any kind of new physics discovery could be made at the LHC, a precise understanding and measurement of the Standard Model of particle physics' processes was necessary. The book provides an introduction to top quark production in the context of the Standard Model and presents two such precise measurements of the production of top quark pairs in proton-proton collisions at a center-of-mass energy of 7 TeV that were observed with the ATLAS Experiment at the LHC. The presented measurements focus on events with one charged lepton, missing transverse energy and jets. Using novel and advanced analysis techniques as well as a good understanding of the detector, they constitute the most precise measurements of the quantity at that time.
Discovery And Measurement Of The Higgs Boson In The Ww Decay Channel
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Author : David Hall
language : en
Publisher: Springer
Release Date : 2015-06-15
Discovery And Measurement Of The Higgs Boson In The Ww Decay Channel written by David Hall and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06-15 with Science categories.
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.
Combined Cdf And D0 Upper Limits On Standard Model Higgs Boson Production With Up To 6 7 Fb 1 Of Data
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Author :
language : en
Publisher:
Release Date : 2010
Combined Cdf And D0 Upper Limits On Standard Model Higgs Boson Production With Up To 6 7 Fb 1 Of Data written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
We combine results from CDF and D0 on direct searches for the standard model (SM) Higgs boson (H) in p{bar p} collisions at the Fermilab Tevatron at (square root)s = 1.96 TeV. Compared to the previous Tevatron Higgs search combination more data have been added, additional new channels have been incorporated, and some previously used channels have been reanalyzed to gain sensitivity. We use the latest parton distribution functions and gg --> H theoretical cross sections when comparing our limits to the SM predictions. With up to 5.9 fb−1 of data analyzed at CDF, and up to 6.7 fb−1 at D0, the 95% C.L. upper limits on Higgs boson production are factors of 1.56 and 0.68 the values of the SM cross section for a Higgs boson mass of m{sub H} = 115 GeV/c2 and 165 GeV/c2. We exclude, at the 95% C.L., a new and larger region at high mass between 158
10th Conference On The Intersections Of Particle And Nuclear Physics
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Author : Marvin L. Marshak
language : en
Publisher: American Institute of Physics
Release Date : 2010-01-11
10th Conference On The Intersections Of Particle And Nuclear Physics written by Marvin L. Marshak and has been published by American Institute of Physics this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-01-11 with Science categories.
CIPANP 2009 explores areas of common interest between nuclear physicists, high energy (particle) physicists and astrophysicists. These areas range from studies of the strong interactions that bind nuclei together to physics of the very early Universe and include such topics as neutrinos, hadron physics, spin physics, heavy ion physics, QCD and heavy flavor physics. The Conference papers include descriptions of searches for "new physics", phenomena that cannot be accounted for by current theories.
Particles Strings And Cosmology
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Author : Arttu Rajantie
language : en
Publisher:
Release Date : 2007
Particles Strings And Cosmology written by Arttu Rajantie and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Science categories.
In the recent years, particle physics and cosmology have got ever closer together. Most of the new theoretical developments in the quest to describe the universe at the most fundamental level are based on string theory. The PASCOS-07 symposium gave a comprehensive review of the status, recent developments, and future prospects of these fields.
Journal Of The Physical Society Of Japan
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Author :
language : en
Publisher:
Release Date : 2007
Journal Of The Physical Society Of Japan 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 Physics categories.
Combined Cdf And D0 Upper Limits On Standard Model Higgs Boson Production With Up To 8 6 Fb 1 Of Data
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Author :
language : en
Publisher:
Release Date : 2011
Combined Cdf And D0 Upper Limits On Standard Model Higgs Boson Production With Up To 8 6 Fb 1 Of Data written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
We combine results from CDF and D0 on direct searches for the standard model (SM) Higgs boson (H) in p{bar p} collisions at the Fermilab Tevatron at √s = 1.96 TeV. Compared to the previous Tevatron Higgs boson search combination more data have been added, additional channels have been incorporated, and some previously used channels have been reanalyzed to gain sensitivity. We use the MSTW08 parton distribution functions and the latest theoretical cross sections when comparing our limits to the SM predictions. With up to 8.2 fb−1 of data analyzed at CDF and up to 8.6 fb−1 at D0, the 95% C.L. our upper limits on Higgs boson production are factors of 1.17, 1.71, and 0.48 times the values of the SM cross section for Higgs bosons of mass m{sub H} = 115 GeV/c2, 140 GeV/c2, and 165 GeV/c2, respectively. The corresponding median upper limits expected in the absence of Higgs boson production are 1.16, 1.16, and 0.57. There is a small (≈ 1[sigma]) excess of data events with respect to the background estimation in searches for the Higgs boson in the mass range 125
Supersymmetry And The Unification Of Fundamental Interactions
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Author : Deog Ki Hong
language : en
Publisher: American Institute of Physics
Release Date : 2008-12-11
Supersymmetry And The Unification Of Fundamental Interactions written by Deog Ki Hong and has been published by American Institute of Physics this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-12-11 with Science categories.
This annual SUSY conference has become the world's largest international meeting devolted to new ideas in high energy physics. The main subject of the conference is theoretical and phenomenological aspects of supersymmetric theories, and dark matter and dark energy, and other comological connections. New, interesting results from various experimental groups are increasingly presented at the conference as well. With roughly 200 plenary and parallel presentations, SUSY08 will likely deliver energy and enthusiasm of both theorists and experimentalists who are searching the frontier of high energy physics.