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Search For Wt Channel Single Top Quark Production In 7 Tev Proton Proton Collisions Using The Atlas Detector


Search For Wt Channel Single Top Quark Production In 7 Tev Proton Proton Collisions Using The Atlas Detector
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Search For Wt Channel Single Top Quark Production In 7 Tev Proton Proton Collisions Using The Atlas Detector


Search For Wt Channel Single Top Quark Production In 7 Tev Proton Proton Collisions Using The Atlas Detector
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Author : Dominique Tardif
language : en
Publisher:
Release Date : 2011

Search For Wt Channel Single Top Quark Production In 7 Tev Proton Proton Collisions Using The Atlas Detector written by Dominique Tardif 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.




Electroweak Physics At The Large Hadron Collider With The Atlas Detector


Electroweak Physics At The Large Hadron Collider With The Atlas Detector
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Author : Elodie Resseguie
language : en
Publisher: Springer Nature
Release Date : 2020-11-03

Electroweak Physics At The Large Hadron Collider With The Atlas Detector written by Elodie Resseguie and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-03 with Science categories.


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.



Phenomena Beyond The Standard Model What Do We Expect For New Physics To Look Like


Phenomena Beyond The Standard Model What Do We Expect For New Physics To Look Like
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Author : Roman Pasechnik
language : en
Publisher: Frontiers Media SA
Release Date : 2020-09-03

Phenomena Beyond The Standard Model What Do We Expect For New Physics To Look Like written by Roman Pasechnik and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-03 with Science categories.


This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.



From The Fermi Scale To Cosmology


From The Fermi Scale To Cosmology
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Author : Alberto Salvio
language : en
Publisher: Frontiers Media SA
Release Date : 2019-12-06

From The Fermi Scale To Cosmology written by Alberto Salvio and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-12-06 with categories.




Cern Courier


Cern Courier
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Author :
language : en
Publisher:
Release Date : 2011

Cern Courier 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 Nuclear energy categories.




Top Quark Pair Production


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.



Search For S Channel Single Top Quark Production In Pp Collisions At Sqrt S


Search For S Channel Single Top Quark Production In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2016

Search For S Channel Single Top Quark Production 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 2016 with categories.


A search is presented for single top quark production in the s channel in proton-proton collisions with the CMS detector at the CERN LHC in decay modes of the top quark containing a muon or an electron in the final state. The signal is extracted through a maximum-likelihood fit to the distribution of a multivariate discriminant defined using boosted decision trees to separate the expected signal contribution from background processes. Data collected at centre-of-mass energies of 7 and 8 TeV yield cross sections of 7.1 +/- 8.1 pb and 13.4 +/- 7.3 pb, respectively, and a best fit value of 2.0 +/- 0.9 for the combined ratio of the measured and expected values. The signal significance is 2.5 standard deviations, and the upper limit on the rate relative to the standard model expectation is 4.7 at 95% confidence level.



Measurements Of Differential T Channel Single Top Quark Production Cross Sections In Proton Proton Collisions At A Centre Of Mass Energy Of 8 Tev With The Atlas Detector


Measurements Of Differential T Channel Single Top Quark Production Cross Sections In Proton Proton Collisions At A Centre Of Mass Energy Of 8 Tev With The Atlas Detector
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Author : Pienpen Seema-Mergelmeyer
language : en
Publisher:
Release Date : 2018

Measurements Of Differential T Channel Single Top Quark Production Cross Sections In Proton Proton Collisions At A Centre Of Mass Energy Of 8 Tev With The Atlas Detector written by Pienpen Seema-Mergelmeyer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.




Measurements Of Differential T Channel Single Top Quark Production Cross Sections In Proton Proton Collisions At A Centre Of Mass Energy Of 8 Tev With The Atlas Detector


Measurements Of Differential T Channel Single Top Quark Production Cross Sections In Proton Proton Collisions At A Centre Of Mass Energy Of 8 Tev With The Atlas Detector
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Author : Pienpen Seema-Mergelmeyer
language : en
Publisher:
Release Date : 2018

Measurements Of Differential T Channel Single Top Quark Production Cross Sections In Proton Proton Collisions At A Centre Of Mass Energy Of 8 Tev With The Atlas Detector written by Pienpen Seema-Mergelmeyer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.




Search For Single Top Quark Production Via Flavour Changing Neutral Currents At 8 Tev With The Atlas Detector


Search For Single Top Quark Production Via Flavour Changing Neutral Currents At 8 Tev With The Atlas Detector
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Author :
language : en
Publisher:
Release Date : 2016

Search For Single Top Quark Production Via Flavour Changing Neutral Currents At 8 Tev With The Atlas 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 2016 with categories.


A search for single top-quark production via flavour-changing neutral current processes from gluon plus up- or charm-quark initial states in proton-proton collisions at the LHC is presented. Data collected with the ATLAS detector in 2012 at a centre-of-mass energy of 8 TeV and corresponding to an integrated luminosity of 20.3 fb-1 are used. Furthermore, candidate events for a top quark decaying into a lepton, a neutrino and a jet are selected and classified into signal- and background-like candidates using a neural network.