Author: Elodie Resseguie
Publisher: Springer Nature
ISBN: 3030570169
Category : Science
Languages : en
Pages : 336
Book Description
This thesis discusses searches for electroweakly produced supersymmetric partners of the gauge and the Higgs bosons (gauginos and higgsinos) decaying to multiple leptons, using pp collisions at sqrt(s) = 13 TeV. The thesis presents an in-depth study of multiple searches, as well as the first 13 TeV cross section measurement for the dominant background in these searches, WZ production. Two searches were performed using 36.1/fb of data: the gaugino search, which makes use of a novel kinematic variable, and the higgsino search, which produced the first higgsino limits at the LHC. A search using 139/fb of data makes use of a new technique developed in this thesis to cross check an excess of data above the background expectation in a search using a Recursive Jigsaw Reconstruction technique. None of the searches showed a significant excess of data, and limits were expanded with respect to previous results. These searches will benefit from the addition of luminosity during HL-LHC; however, the current detector will not be able to withstand the increase in radiation. Electronics for the detector upgrade are tested and irradiated to ensure their performance.
Electroweak Physics at the Large Hadron Collider with the ATLAS Detector
Author: Elodie Resseguie
Publisher: Springer Nature
ISBN: 3030570169
Category : Science
Languages : en
Pages : 336
Book Description
This thesis discusses searches for electroweakly produced supersymmetric partners of the gauge and the Higgs bosons (gauginos and higgsinos) decaying to multiple leptons, using pp collisions at sqrt(s) = 13 TeV. The thesis presents an in-depth study of multiple searches, as well as the first 13 TeV cross section measurement for the dominant background in these searches, WZ production. Two searches were performed using 36.1/fb of data: the gaugino search, which makes use of a novel kinematic variable, and the higgsino search, which produced the first higgsino limits at the LHC. A search using 139/fb of data makes use of a new technique developed in this thesis to cross check an excess of data above the background expectation in a search using a Recursive Jigsaw Reconstruction technique. None of the searches showed a significant excess of data, and limits were expanded with respect to previous results. These searches will benefit from the addition of luminosity during HL-LHC; however, the current detector will not be able to withstand the increase in radiation. Electronics for the detector upgrade are tested and irradiated to ensure their performance.
Publisher: Springer Nature
ISBN: 3030570169
Category : Science
Languages : en
Pages : 336
Book Description
This thesis discusses searches for electroweakly produced supersymmetric partners of the gauge and the Higgs bosons (gauginos and higgsinos) decaying to multiple leptons, using pp collisions at sqrt(s) = 13 TeV. The thesis presents an in-depth study of multiple searches, as well as the first 13 TeV cross section measurement for the dominant background in these searches, WZ production. Two searches were performed using 36.1/fb of data: the gaugino search, which makes use of a novel kinematic variable, and the higgsino search, which produced the first higgsino limits at the LHC. A search using 139/fb of data makes use of a new technique developed in this thesis to cross check an excess of data above the background expectation in a search using a Recursive Jigsaw Reconstruction technique. None of the searches showed a significant excess of data, and limits were expanded with respect to previous results. These searches will benefit from the addition of luminosity during HL-LHC; however, the current detector will not be able to withstand the increase in radiation. Electronics for the detector upgrade are tested and irradiated to ensure their performance.
Perspectives on Lhc Physics
Author: G. L. Kane
Publisher: World Scientific
ISBN: 9812779760
Category : Science
Languages : en
Pages : 352
Book Description
The Large Hadron Collider (LHC), located at CERN, Geneva, Switzerland, is the world's largest and highest energy and highest intensity particle accelerator. Here is a timely book with several perspectives on the hoped-for discoveries from the LHC.This book provides an overview on the techniques that will be crucial for finding new physics at the LHC, as well as perspectives on the importance and implications of the discoveries. Among the accomplished contributors to this book are leaders and visionaries in the field of particle physics beyond the Standard Model, including two Nobel Laureates (Steven Weinberg and Frank Wilczek), and presumably some future Nobel Laureates, plus top younger theorists and experimenters. With its blend of popular and technical contents, the book will have wide appeal, not only to physical scientists but also to those in related fields.
Publisher: World Scientific
ISBN: 9812779760
Category : Science
Languages : en
Pages : 352
Book Description
The Large Hadron Collider (LHC), located at CERN, Geneva, Switzerland, is the world's largest and highest energy and highest intensity particle accelerator. Here is a timely book with several perspectives on the hoped-for discoveries from the LHC.This book provides an overview on the techniques that will be crucial for finding new physics at the LHC, as well as perspectives on the importance and implications of the discoveries. Among the accomplished contributors to this book are leaders and visionaries in the field of particle physics beyond the Standard Model, including two Nobel Laureates (Steven Weinberg and Frank Wilczek), and presumably some future Nobel Laureates, plus top younger theorists and experimenters. With its blend of popular and technical contents, the book will have wide appeal, not only to physical scientists but also to those in related fields.
Electroweak Physics at the LHC
Author: Matthias U. Mozer
Publisher: Springer
ISBN: 3319303813
Category : Science
Languages : en
Pages : 121
Book Description
The book discusses the recent experimental results obtained at the LHC that involve electroweak bosons. The results are placed into an appropriate theoretical and historical context. The work pays special attention to the rising subject of hadronically decaying bosons with high boosts, documenting the state-of-the-art identification techniques and highlighting typical results. The text is not limited to electroweak physics in the strict sense, but also discusses the use of electroweak vector-bosons as tool in the study of other subjects in particle physics, such as determinations of the proton structure or the search for new exotic particles. The book is particularly well suited for graduate students, starting their thesis work on topics that involve electroweak bosons, as the book provides a comprehensive description of phenomena observable at current accelerators as well as a summary of the most relevant experimental techniques.
Publisher: Springer
ISBN: 3319303813
Category : Science
Languages : en
Pages : 121
Book Description
The book discusses the recent experimental results obtained at the LHC that involve electroweak bosons. The results are placed into an appropriate theoretical and historical context. The work pays special attention to the rising subject of hadronically decaying bosons with high boosts, documenting the state-of-the-art identification techniques and highlighting typical results. The text is not limited to electroweak physics in the strict sense, but also discusses the use of electroweak vector-bosons as tool in the study of other subjects in particle physics, such as determinations of the proton structure or the search for new exotic particles. The book is particularly well suited for graduate students, starting their thesis work on topics that involve electroweak bosons, as the book provides a comprehensive description of phenomena observable at current accelerators as well as a summary of the most relevant experimental techniques.
High-Luminosity Large Hadron Collider ( HL-LHC )
Author: G.. Apollinari
Publisher:
ISBN: 9789290834700
Category :
Languages : en
Pages : 516
Book Description
Publisher:
ISBN: 9789290834700
Category :
Languages : en
Pages : 516
Book Description
Electroweak Physics at LEP and LHC
Author: Arno Straessner
Publisher: Springer
ISBN: 3642051693
Category : Science
Languages : en
Pages : 222
Book Description
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.
Publisher: Springer
ISBN: 3642051693
Category : Science
Languages : en
Pages : 222
Book Description
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.
A Search for Displaced Leptons in the ATLAS Detector
Author: Lesya Horyn
Publisher: Springer Nature
ISBN: 3030916723
Category : Science
Languages : en
Pages : 146
Book Description
This thesis presents a search for long-lived particles decaying into displaced electrons and/or muons with large impact parameters. This signature provides unique sensitivity to the production of theoretical lepton-partners, sleptons. These particles are a feature of supersymmetric theories, which seek to address unanswered questions in nature. The signature searched for in this thesis is difficult to identify, and in fact, this is the first time it has been probed at the Large Hadron Collider (LHC). It covers a long-standing gap in coverage of possible new physics signatures. This thesis describes the special reconstruction and identification algorithms used to select leptons with large impact parameters and the details of the background estimation. The results are consistent with background, so limits on slepton masses and lifetimes in this model are calculated at 95% CL, drastically improving on the previous best limits from the Large Electron Positron Collider (LEP).
Publisher: Springer Nature
ISBN: 3030916723
Category : Science
Languages : en
Pages : 146
Book Description
This thesis presents a search for long-lived particles decaying into displaced electrons and/or muons with large impact parameters. This signature provides unique sensitivity to the production of theoretical lepton-partners, sleptons. These particles are a feature of supersymmetric theories, which seek to address unanswered questions in nature. The signature searched for in this thesis is difficult to identify, and in fact, this is the first time it has been probed at the Large Hadron Collider (LHC). It covers a long-standing gap in coverage of possible new physics signatures. This thesis describes the special reconstruction and identification algorithms used to select leptons with large impact parameters and the details of the background estimation. The results are consistent with background, so limits on slepton masses and lifetimes in this model are calculated at 95% CL, drastically improving on the previous best limits from the Large Electron Positron Collider (LEP).
The Large Hadron Collider
Author: Lyndon R. Evans
Publisher: EPFL Press
ISBN: 9782940222346
Category : Hadron colliders
Languages : en
Pages : 264
Book Description
Describes the technology and engineering of the Large Hadron collider (LHC), one of the greatest scientific marvels of this young 21st century. This book traces the feat of its construction, written by the head scientists involved, placed into the context of the scientific goals and principles.
Publisher: EPFL Press
ISBN: 9782940222346
Category : Hadron colliders
Languages : en
Pages : 264
Book Description
Describes the technology and engineering of the Large Hadron collider (LHC), one of the greatest scientific marvels of this young 21st century. This book traces the feat of its construction, written by the head scientists involved, placed into the context of the scientific goals and principles.
At the Leading Edge
Author: Dan Green
Publisher: World Scientific
ISBN: 9814277622
Category : Science
Languages : en
Pages : 445
Book Description
Ch. 1. Introduction : how physics defines the LHC environment and detectors / D. Green -- ch. 2. The CMS pixel detector / W. Erdmann -- ch. 3. The hybrid tracking system of ATLAS / Leonardo Rossi -- ch. 4. The all-silicon strip CMS tracker : microtechnology at the macroscale / M. Mannelli -- ch. 5. The ATLAS electromagnetic calorimeters : features and performance / Luciano Mandelli -- ch. 6. The CMS electromagnetic calorimeter : crystals and APD productions / P. Bloch -- ch. 7. ATLAS electronics : an overview / Philippe Farthouat -- ch. 8. Innovations in the CMS tracker electronics / G. Hall -- ch. 9. TileCal : the hadronic section of the central ATLAS calorimeter / K. Anderson [und weitere] -- ch. 10. Innovations for the CMS HCAL / J. Freeman -- ch. 11. ATLAS superconducting toroids - the largest ever built / Herman H.J. ten Kate -- ch. 12. Constructing a 4-Tesla large thin solenoid at the limit of what can be safely operated / A. Hervé -- ch. 13. The ATLAS muon spectrometer / Giora Mikenberg -- ch. 14. The CMS muon detector : from the first thoughts to the final design / Fabrizio Gasparini -- ch. 15. The why and how of the ATLAS data acquisition system / Livio Mapelli and Giuseppe Mornacchi -- ch. 16. Removing the haystack - the CMS trigger and data acquisition systems / Vivian O'Dell
Publisher: World Scientific
ISBN: 9814277622
Category : Science
Languages : en
Pages : 445
Book Description
Ch. 1. Introduction : how physics defines the LHC environment and detectors / D. Green -- ch. 2. The CMS pixel detector / W. Erdmann -- ch. 3. The hybrid tracking system of ATLAS / Leonardo Rossi -- ch. 4. The all-silicon strip CMS tracker : microtechnology at the macroscale / M. Mannelli -- ch. 5. The ATLAS electromagnetic calorimeters : features and performance / Luciano Mandelli -- ch. 6. The CMS electromagnetic calorimeter : crystals and APD productions / P. Bloch -- ch. 7. ATLAS electronics : an overview / Philippe Farthouat -- ch. 8. Innovations in the CMS tracker electronics / G. Hall -- ch. 9. TileCal : the hadronic section of the central ATLAS calorimeter / K. Anderson [und weitere] -- ch. 10. Innovations for the CMS HCAL / J. Freeman -- ch. 11. ATLAS superconducting toroids - the largest ever built / Herman H.J. ten Kate -- ch. 12. Constructing a 4-Tesla large thin solenoid at the limit of what can be safely operated / A. Hervé -- ch. 13. The ATLAS muon spectrometer / Giora Mikenberg -- ch. 14. The CMS muon detector : from the first thoughts to the final design / Fabrizio Gasparini -- ch. 15. The why and how of the ATLAS data acquisition system / Livio Mapelli and Giuseppe Mornacchi -- ch. 16. Removing the haystack - the CMS trigger and data acquisition systems / Vivian O'Dell
Particle Physics Reference Library
Author: Christian W. Fabjan
Publisher: Springer Nature
ISBN: 3030353184
Category : Heavy ions
Languages : en
Pages : 1083
Book Description
This second open access volume of the handbook series deals with detectors, large experimental facilities and data handling, both for accelerator and non-accelerator based experiments. It also covers applications in medicine and life sciences. 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
Publisher: Springer Nature
ISBN: 3030353184
Category : Heavy ions
Languages : en
Pages : 1083
Book Description
This second open access volume of the handbook series deals with detectors, large experimental facilities and data handling, both for accelerator and non-accelerator based experiments. It also covers applications in medicine and life sciences. 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
Particle Physics Reference Library
Author: Herwig Schopper
Publisher: Springer Nature
ISBN: 3030382079
Category : Heavy ions
Languages : en
Pages : 632
Book Description
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
Publisher: Springer Nature
ISBN: 3030382079
Category : Heavy ions
Languages : en
Pages : 632
Book Description
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