The Standard Model Higgs Boson Discovery Potential In The Decay Channel H Zz Superscript 4 Mu With The Cms Detector
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The Standard Model Higgs Boson Discovery Potential In The Decay Channel H Zz Superscript 4 Mu With The Cms Detector
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Author : Alexey Alexandrovich Drozdetskiy
language : en
Publisher:
Release Date : 2007
The Standard Model Higgs Boson Discovery Potential In The Decay Channel H Zz Superscript 4 Mu With The Cms Detector written by Alexey Alexandrovich Drozdetskiy 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.
ABSTRACT: The Compact Muon Solenoid (CMS) is a general purpose detector at the Large Hadron Collider (LHC) currently under construction at CERN with start-up date in 2008. The putative Higgs boson is the most plausible solution for the mystery of mass in the Standard Model of elementary particles and its discovery is one of the prime goals for the LHC. Higgs boson search. Our research presents an optimized strategy for a Higgs boson search in its four-muon decay channel, H--> ZZ[superscript*]--> 4[mu], also known as a golden decay channel. The method automatically ensures an optimal signal-to-background ratio for any mass, at which the Higgs boson might appear. The most important theoretical and instrumental systematic errors are taken into account and our search was conducted in a broad range of possible Higgs boson masses. Muon reconstruction. We developed an algorithm for a fast and efficient muon track segment reconstruction in Cathode Strip Chambers. Designed to be CPU-efficient, the algorithm is specifically targeted for High Level Trigger purposes. The segment-finding efficiency and the spatial resolution attainable with the proposed algorithm and the required CPU time were validated using the cosmic ray data taken by the CMS in 2006. The results of validation showed the efficiency and spatial resolution attainable with the algorithm are well within the High Level Trigger requirements and the algorithm's timing performance is by far superior to all algorithms previously used in CMS.
Optimisation Of The Discovery Potential Of The Higgs Boson In The Decay Channel H Zz 2e 2e With The Cms Detector
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Author :
language : en
Publisher:
Release Date : 2004
Optimisation Of The Discovery Potential Of The Higgs Boson In The Decay Channel H Zz 2e 2e With The Cms Detector written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Search For The Standard Model Higgs Boson In The H Zz L L Qq Decay Channel At Cms
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Author : Francesco Pandolfi
language : en
Publisher:
Release Date : 2013-09-30
Search For The Standard Model Higgs Boson In The H Zz L L Qq Decay Channel At Cms written by Francesco Pandolfi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09-30 with categories.
Discovery Of The Higgs Boson And A Search For Beyond The Standard Model Physics In Zz Decays Using The Cms Detector At The Lhc
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Author :
language : en
Publisher:
Release Date : 2013
Discovery Of The Higgs Boson And A Search For Beyond The Standard Model Physics In Zz Decays Using The Cms Detector At The Lhc written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
A study of the pp to ZZ 6́2 llll final state is conducted using 19.6 inverse femtobarn of 8 TeV proton-proton collisions at the LHC using the CMS detector. The Standard Model pp 6́2 ZZ production cross section is measured to be 7.7+0.5 -0.5 (stat.) +0.6 -0.5(sys.) ± 0.3(lumi) pb. Evidence of a new Higgs-like boson is observed with a significance of 6.1ï3 at 126 GeV. 95% confidence level upper limits are set on the neutral anomalous triple gauge couplings; -0.004
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.
Search For A Higgs Boson In The Decay Channel H To Zz To Q Qbar Ell L In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2012
Search For A Higgs Boson In The Decay Channel H To Zz To Q Qbar Ell L In Pp Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
A search for the standard model Higgs boson decaying into two Z bosons with subsequent decay into a final state containing two quark jets and two leptons, H to ZZ(*) to q q-bar l-l+ is presented. Results are based on data corresponding to an integrated luminosity of 4.6 inverse femtobarns of proton-proton collisions at sqrt(s)=7 TeV, collected with the CMS detector at the LHC. In order to discriminate between signal and background events, kinematic and topological quantities, including the angular spin correlations of the decay products, are employed. Events are further classified according to the probability of the jets to originate from quarks of light or heavy flavor or from gluons. No evidence for the Higgs boson is found, and upper limits on its production cross section are determined for a Higgs boson of mass between 130 and 600 GeV.
Search For The Standard Model Higgs Boson In The Decay Channel H To Z Z To 4 Leptons In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2012
Search For The Standard Model Higgs Boson In The Decay Channel H To Z Z To 4 Leptons In Pp Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
A search for a Higgs boson in the four-lepton decay channel H to ZZ, with each Z boson decaying to an electron or muon pair, is reported. The search covers Higgs boson mass hypotheses in the range 110 mH
Search For The Standard Model Higgs Boson Decaying To A Bottom Quark Pair With The Cms Detector
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Author : Matthew I. Fisher
language : en
Publisher:
Release Date : 2014
Search For The Standard Model Higgs Boson Decaying To A Bottom Quark Pair With The Cms Detector written by Matthew I. Fisher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
A search for the standard model Higgs boson is shown in the associated production channel with a Z boson and decay to bottom quarks. The data for this search was gathered from April 2011 until December 2012. The dataset corresponds to 5.0 fb ... 1 of pp collisions at p s = 7 TeV and 19.04 fb ... 1 of pp collisions at p s = 8 TeV . An excess of events is observed above the expected background with a local significance of 2.1 standard deviations, which is consistent with the expectation from the production of the standard model Higgs boson.
Search For The Standard Model Higgs Boson In The Decay Channel Into Four Muons With The Cms Detector
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Author : Matteo Sani
language : en
Publisher:
Release Date : 2006
Search For The Standard Model Higgs Boson In The Decay Channel Into Four Muons With The Cms Detector written by Matteo Sani and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
Search For The Standard Model Higgs Boson Produced In Association With A Standard W Or A Z Boson And Decaying To Bottom Quarks
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Author :
language : en
Publisher:
Release Date : 2014
Search For The Standard Model Higgs Boson Produced In Association With A Standard W Or A Z Boson And Decaying To Bottom Quarks written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
A search for the standard model Higgs boson (H) decaying to b b-bar when produced in association with a weak vector boson (V) is reported for the following channels: W(mu nu)H, W(e nu)H, W(tau nu)H, Z(mu mu)H, Z(e e)H, and Z(nu nu)H. The search is performed in data samples corresponding to integrated luminosities of up to 5.1 inverse femtobarns at sqrt(s) = 7 TeV and up to 18.9 inverse femtobarns at sqrt(s) = 8 TeV, recorded by the CMS experiment at the LHC. An excess of events is observed above the expected background with a local significance of 2.1 standard deviations for a Higgs boson mass of 125 GeV, consistent with the expectation from the production of the standard model Higgs boson. The signal strength corresponding to this excess, relative to that of the standard model Higgs boson, is 1.0 +/- 0.5./abstract