Extending The Limits In The Hunt For Long Lived Heavy Neutral Leptons With The Atlas Experiment At The Large Hadron Collider At Cern
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Extending The Limits In The Hunt For Long Lived Heavy Neutral Leptons With The Atlas Experiment At The Large Hadron Collider At Cern
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Author : Christian Appelt
language : en
Publisher:
Release Date : 2024*
Extending The Limits In The Hunt For Long Lived Heavy Neutral Leptons With The Atlas Experiment At The Large Hadron Collider At Cern written by Christian Appelt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024* with categories.
Englische Version: A search for a long-lived, heavy neutral lepton ($\mathcal{N}$) in 139~fb$ {-1}$ of $\sqrt{s}=13$~TeV $pp$ collision data collected between 2015 and 2018 by the ATLAS detector at the Large Hadron Collider is presented. The $\mathcal{N}$ is assumed to be produced via $W \rightarrow \mathcal{N} \mu$ or $W \rightarrow \mathcal{N} e$ and decays into two charged leptons and a neutrino, forming a unique displaced vertex signature. A novel technique is used to reconstruct the $\mathcal{N}$ mass that discriminates between signal and background. No signal is observed, and limits are set on the squared mixing parameters of the $\mathcal{N}$ with the left-handed neutrino states for the $\mathcal{N}$ mass range $3$~GeV~$
Search For Massive Long Lived Particles Using Multitrack Displaced Vertices Or Displaced Lepton Pairs In Math Display
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Author :
language : en
Publisher:
Release Date : 2015
Search For Massive Long Lived Particles Using Multitrack Displaced Vertices Or Displaced Lepton Pairs In Math Display written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Many extensions of the Standard Model posit the existence of heavy particles with long lifetimes. This article presents the results of a search for events containing at least one long-lived particle that decays at a significant distance from its production point into two leptons or into five or more charged particles. In this study, this analysis uses a data sample of proton-proton collisions at \(\sqrt{s} = 8\) TeV corresponding to an integrated luminosity of 20.3 fb−1 collected in 2012 by the ATLAS detector operating at the Large Hadron Collider. No events are observed in any of the signal regions, and limits are set on model parameters within supersymmetric scenarios involving R-parity violation, split supersymmetry, and gauge mediation. In some of the search channels, the trigger and search strategy are based only on the decay products of individual long-lived particles, irrespective of the rest of the event. In these cases, the provided limits can easily be reinterpreted in different scenarios.
Search For Type Iii Seesaw Heavy Leptons In Leptonic Final States In Pp Collisions At Square Root S
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Author : [Study Group] ATLAS Collaboration CERN
language : en
Publisher:
Release Date : 2022
Search For Type Iii Seesaw Heavy Leptons In Leptonic Final States In Pp Collisions At Square Root S written by [Study Group] ATLAS Collaboration CERN and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with categories.
Abstract: A search for the pair production of heavy leptons as predicted by the type-III seesaw mechanism is presented. The search uses proton-proton collision data at a centre-of-mass energy of 13 TeV, corresponding to 139fb−1 of integrated luminosity recorded by the ATLAS detector during Run 2 of the Large Hadron Collider. The analysis focuses on final states with three or four electrons or muons from the possible decays of new heavy leptons via intermediate electroweak bosons. No significant deviations above the Standard Model expectation are observed; upper and lower limits on the heavy lepton production cross-section and masses are derived respectively. These results are then combined for the first time with the ones already published by ATLAS using the channel with two leptons in the final state. The observed lower limit on the mass of the type-III seesaw heavy leptons combining two, three and four lepton channels together is 910 GeV at the 95% confidence level
Search For Longlived Heavy Neutral Leptons Using A Displaced Jet Tagger In The Cms Experiment
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Author : Haifa Rejeb Sfar
language : en
Publisher:
Release Date : 2024
Search For Longlived Heavy Neutral Leptons Using A Displaced Jet Tagger In The Cms Experiment written by Haifa Rejeb Sfar and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024 with categories.
Search For Long Lived Particles Decaying To Oppositely Charged Lepton Pairs With The Atlas Experiment At S
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Author : Dominik Krauss
language : en
Publisher:
Release Date : 2019
Search For Long Lived Particles Decaying To Oppositely Charged Lepton Pairs With The Atlas Experiment At S written by Dominik Krauss and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
Atlas
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Author : Theodota Lagouri
language : en
Publisher:
Release Date : 1999
Atlas written by Theodota Lagouri and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
Large Hadron Collider The
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Author : Bonnie Juettner Fernandes
language : en
Publisher: Norwood House Press
Release Date : 2013-07-01
Large Hadron Collider The written by Bonnie Juettner Fernandes and has been published by Norwood House Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-07-01 with Juvenile Nonfiction categories.
What really happened during the Big Bang? Why did matter form? Why do particles have mass? To answer these questions, scientists and engineers have worked together to build the largest and most powerful particle accelerator in the world: the Large Hadron Collider. Correlates with STEM and Physics instruction. Includes glossary, websites, and bibliography for further reading.
Understanding The Large Hadron Collider
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Author : Fred Bortz
language : en
Publisher: Cavendish Square Publishing, LLC
Release Date : 2015-07-15
Understanding The Large Hadron Collider written by Fred Bortz and has been published by Cavendish Square Publishing, LLC this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-07-15 with Juvenile Nonfiction categories.
Discover the engineering and science behind particle accelerators, the massive machines that smash the smallest atoms together to observe how they work.
Search For Exotic Long Lived Particles Decaying Into Hadronic States In The Calorimeter Of The Atlas Detector At The Large Hadron Collider
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Author : Alice Polyxeni Morris
language : en
Publisher:
Release Date : 2021
Search For Exotic Long Lived Particles Decaying Into Hadronic States In The Calorimeter Of The Atlas Detector At The Large Hadron Collider written by Alice Polyxeni Morris and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
Voyage To The Heart Of Matter
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Author : Anton Radevsky
language : en
Publisher: Papadakis Dist A/C
Release Date : 2009
Voyage To The Heart Of Matter written by Anton Radevsky and has been published by Papadakis Dist A/C this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Large Hadron Collider (France and Switzerland) categories.
One of the most significant technological wonders of the modern world leaps from the page in 3D pop-up.