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Evidence For Standard Model Higgs Boson Decays To Tau Lepton Pairs In The Atlas Detector Supported By A Search In The Fully Hadronic Final State
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Book Synopsis Evidence for Standard Model Higgs Boson Decays to Tau Lepton Pairs in the ATLAS Detector Supported by a Search in the Fully Hadronic Final State by : Edmund Noel Dawe
Download or read book Evidence for Standard Model Higgs Boson Decays to Tau Lepton Pairs in the ATLAS Detector Supported by a Search in the Fully Hadronic Final State written by Edmund Noel Dawe and published by . This book was released on 2014 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis PEM 16: Entwicklung herstellerübergreifender Module für den nutzerorientierten Einsatz der offenen Steuerungsarchitektur by : Gebrüder Heller
Download or read book PEM 16: Entwicklung herstellerübergreifender Module für den nutzerorientierten Einsatz der offenen Steuerungsarchitektur written by Gebrüder Heller and published by . This book was released on 1995 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evidence for the Higgs Boson Decay to Tau+ Tau- in the Lepton + Hadrons Final State with ATLAS by : Thomas Schwindt
Download or read book Evidence for the Higgs Boson Decay to Tau+ Tau- in the Lepton + Hadrons Final State with ATLAS written by Thomas Schwindt and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evidence for the Standard Model Higgs Boson Decaying to One Semi-hadronically Decaying Tau and One Leptonically Decaying Tau at ATLAS by : Michel Trottier-McDonald
Download or read book Evidence for the Standard Model Higgs Boson Decaying to One Semi-hadronically Decaying Tau and One Leptonically Decaying Tau at ATLAS written by Michel Trottier-McDonald and published by . This book was released on 2014 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis reports the search for the Higgs boson decaying to a pair of tau leptons, where one tau decays leptonically and the other decays semi-hadronically. The search was conducted by the ATLAS experiment on the proton-proton collisions supplied by the LHC in 2012. It is complicated by background from a mix of known processes from the Standard Model of Particle Physics. It makes use of boosted decision trees to separate the Higgs signal from the background. The gluon-gluon fusion and the vector boson fusion production mechanisms are searched for separately. The statistical significance of the excess observed over the background-only hypothesis is 3.3 standard deviations, and reaches 4.1 standard deviations when combined with other ditau channels. The observed signal appears fully compatible with the Higgs boson of the Standard Model.
Book Synopsis Observation of Standard Model Higgs Boson Decays to Tau Leptons and a Search for Dark Matter with the CMS Detector at the LHC by : Laura Margaret Dodd
Download or read book Observation of Standard Model Higgs Boson Decays to Tau Leptons and a Search for Dark Matter with the CMS Detector at the LHC written by Laura Margaret Dodd and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A search for the standard model (SM) Higgs boson which decays to a pair of [tau] leptons is presented in this thesis using 35.9 f b−1 of 13 TeV data collected in 2016 by the CMS detector at CERN. The final states considered require that (1) one [tau] lepton decays leptonically while the other decays hadronically ([mu][tau]h or e[tau]h), (2) both taus decay hadronically ([tau]h[tau]h) or (3) one tau lepton decays to an electron while the other decays to a muon (e[mu]). This thesis specifically focuses on the details of the semi-hadronic decay channels ([mu][tau]h and e[tau]h), and presents the results of all channels combined. The signal strength, [mu], relative to the expectation for the SM Higgs boson is measured to be [mu] = 1.09+0.27−0.24. An excess is observed (expected) corresponding to 4.9 (4.7) [sigma] using 2016 data. The observed (expected) significance reaches 5.9 (5.9) [sigma] when combined with 7 and 8 TeV data collected at CMS. Subsequently following the SM search, a search for dark matter (DM) is presented and interpreted in two simplified Higgs-portal models: a baryonic dark matter model and a two Higgs-doublet model. In this thesis, the Higgs boson is required to decay to an opposite- sign tau pair. The tau pair final states considered are e[tau]h, [mu][tau]h, and [tau]h[tau]h. The expected 95% confidence level upper limits are produced and compared with the observed limit. No significant deviations beyond the SM prediction are observed.
Book Synopsis Measurement of the Higgs Boson Decay to Τ-pairs in the Lepton Plus Hadrons Final State in Proton-proton Collisions with the ATLAS Detector by : Jessica Kristina Liebal
Download or read book Measurement of the Higgs Boson Decay to Τ-pairs in the Lepton Plus Hadrons Final State in Proton-proton Collisions with the ATLAS Detector written by Jessica Kristina Liebal and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Standard Model Higgs Boson by : Martin B. Einhorn
Download or read book The Standard Model Higgs Boson written by Martin B. Einhorn and published by North Holland. This book was released on 1991 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 8.
Book Synopsis Evidence for the Higgs Boson Decay to T+t- in the Lepton + Hadrons Final State with ATLAS by : Thomas Schwindt
Download or read book Evidence for the Higgs Boson Decay to T+t- in the Lepton + Hadrons Final State with ATLAS written by Thomas Schwindt and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evidence for a Higgs Boson in Tau Decays with the CMS Detector by : Valentina Dutta
Download or read book Evidence for a Higgs Boson in Tau Decays with the CMS Detector written by Valentina Dutta and published by . This book was released on 2014 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, I describe the search for a Higgs boson through its decay to a pair of tan leptons with the tau-pair subsequently decaying to ail electron, a muon, and neutrinos. The search is performed using data collected from proton-proton collisions by the Compact Muon Solenoid experiment at the Large Hadron Collider, corresponding to 5.0 fb-1 of integrated luminosity recorded at a center-of-mass energy of 7 TeV and 19.7 fb-1 at 8 TeV. The expected significance for a Standard Model Higgs boson signal with a mass of 125 GeV is at the level of 1.2 standard deviations for the electron muon tau-pair decay mode. A mild excess of events is seen above the SM background expectation in this decay mode, consistent with a SM Higgs boson of mass 125 GeV. In combination with results using other tau-pair decay modes, an excess of events above the background expectation is seen at the level of 3.4 standard deviations. This constitutes the first evidence for a Higgs boson to decay to leptons. This thesis also describes an analysis of the data in the context of physics beyond the Standard Model, particularly in the framework of its Minimal Supersymnnetric extension.
Book Synopsis Particle Physics Reference Library by : Herwig Schopper
Download or read book Particle Physics Reference Library written by Herwig Schopper and published by Springer Nature. This book was released on 2020 with total page 632 pages. 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
Book Synopsis Search for the Standard Model Higgs Boson in Hadronic Tau+tau-decays with the ATLAS Detector by : Daniele Zanzi
Download or read book Search for the Standard Model Higgs Boson in Hadronic Tau+tau-decays with the ATLAS Detector written by Daniele Zanzi and published by . This book was released on 2014 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evidence for the 125 GeV Higgs Boson Decaying to a Pair of $\tau$ Leptons by :
Download or read book Evidence for the 125 GeV Higgs Boson Decaying to a Pair of $\tau$ Leptons written by and published by . This book was released on 2014 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: A search for a standard model Higgs boson decaying into a pair of tau leptons is performed using events recorded by the CMS experiment at the LHC in 2011 and 2012. The dataset corresponds to an integrated luminosity of 4.9 inverse femtobarns at a centre-of-mass energy of 7 TeV and 19.7 inverse femtobarns at 8 TeV. Each tau lepton decays hadronically or leptonically to an electron or a muon, leading to six different final states for the tau-lepton pair, all considered in this analysis. An excess of events is observed over the expected background contributions, with a local significance larger than 3 standard deviations for m[H] values between 115 and 130 GeV. The best fit of the observed H to tau tau signal cross section for m[H] = 125 GeV is 0.78 +- 0.27 times the standard model expectation. These observations constitute evidence for the 125 GeV Higgs boson decaying to a pair of tau leptons.
Book Synopsis Search for the Higgs Boson in Lepton, Tau, and Jets Final States by :
Download or read book Search for the Higgs Boson in Lepton, Tau, and Jets Final States written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a search for the standard model Higgs boson in final states with an electron or muon and a hadronically decaying tau lepton in association with two or more jets using 9.7 fb-1 of Run II Fermilab Tevatron Collider data collected with the D0 detector. The analysis is sensitive to Higgs boson production via gluon fusion, associated vector boson production, and vector boson fusion, followed by the Higgs boson decay to tau lepton pairs or to W boson pairs. The ratios of 95% C.L. upper limits on the cross section times branching ratio to those predicted by the standard model are obtained for orthogonal subsamples that are enriched in either H → [tau] [tau] decays or H → WW decays, and for the combination of these subsample limits. The observed and expected limit ratios for the combined subsamples at a Higgs boson mass of 125 GeV are 11.3 and 9.0 respectively.
Book Synopsis The Standard Theory of Particle Physics by : Luciano Maiani
Download or read book The Standard Theory of Particle Physics written by Luciano Maiani and published by World Scientific Publishing Company. This book was released on 2016-08-25 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis A Search for Neutral High-mass Higgs Bosons Decaying Into Pairs of Hadronically Decaying Tau Leptons in 13 TeV Collisions Recorded by the ATLAS Detector by : Mark Andrew Pickering
Download or read book A Search for Neutral High-mass Higgs Bosons Decaying Into Pairs of Hadronically Decaying Tau Leptons in 13 TeV Collisions Recorded by the ATLAS Detector written by Mark Andrew Pickering and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Neutral Higgs Bosons Decaying Into the Leptonic-hadronic Di-tau Final State in the Minimal Supersymmetric Standard Model with the ATLAS Detector by : Felix Friedrich
Download or read book Search for Neutral Higgs Bosons Decaying Into the Leptonic-hadronic Di-tau Final State in the Minimal Supersymmetric Standard Model with the ATLAS Detector written by Felix Friedrich and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Searches for Higgs Boson Decays to Muon Pairs in the Standard Model and in Its Minimal Supersymmetric Extension with the ATLAS Detector by : Sebastian Stern
Download or read book Searches for Higgs Boson Decays to Muon Pairs in the Standard Model and in Its Minimal Supersymmetric Extension with the ATLAS Detector written by Sebastian Stern and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
