Search For Heavy Long Lived Multi Charged Particles In Pp Collisions At Arrow
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Search For Heavy Long Lived Multi Charged Particles In Pp Collisions At Arrow
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Author :
language : en
Publisher:
Release Date : 2015
Search For Heavy Long Lived Multi Charged Particles In Pp Collisions At Arrow 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.
A search for heavy long-lived multi-charged particles is performed using the ATLAS detector at the LHC. Data collected in 2012 at [arrow]" = 8 TeV from pp collisions corresponding to an integrated luminosity of 20.3 fb-1 are examined. Particles producing anomalously high ionisation, consistent with long-lived massive particles with electric charges from.
Search For Metastable Heavy Charged Particles With Large Ionisation Energy Loss In Pp Collisions At Arrow
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Author :
language : en
Publisher:
Release Date : 2015
Search For Metastable Heavy Charged Particles With Large Ionisation Energy Loss In Pp Collisions At Arrow 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.
The many extensions of the Standard Model predict the existence of charged heavy long-lived particles, such as R-hadrons or charginos. If produced at the Large Hadron Collider, these particles should be moving non-relativistically and are therefore identifiable through the measurement of an anomalously large specific energy loss in the ATLAS pixel detector. Measuring heavy long-lived particles through their track parameters in the vicinity of the interaction vertex provides sensitivity to metastable particles with lifetimes from 0.6 ns to 30 ns. A search for such particles with the ATLAS detector at the Large Hadron Collider is presented, based on a data sample corresponding to an integrated luminosity of 18.4 fb-1 of pp collisions at [arrow]"=8 TeV. No significant deviation from the Standard Model background expectation is observed, and lifetime-dependent upper limits on R-hadrons and chargino production are set. Gluino R-hadrons with 10 ns lifetime and masses up to 1185 GeV are excluded at 95 % confidence level, and so are charginos with 15 ns lifetime and masses up to 482 GeV.
Inis Atomindex
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Author :
language : en
Publisher:
Release Date : 1988
Inis Atomindex written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Nuclear energy categories.
Search For Heavy Long Lived Charged Particles With The Atlas Detector In Pp Collisions At S
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Author : Shikma Bressler
language : en
Publisher:
Release Date : 2011
Search For Heavy Long Lived Charged Particles With The Atlas Detector In Pp Collisions At S written by Shikma Bressler 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.
Current Programs
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Author :
language : en
Publisher:
Release Date : 1977
Current Programs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Engineering categories.
Bulletin Of The Atomic Scientists
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Author :
language : en
Publisher:
Release Date : 1981-03
Bulletin Of The Atomic Scientists written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981-03 with categories.
Popular Mechanics
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Author :
language : en
Publisher:
Release Date : 1964-04
Popular Mechanics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964-04 with categories.
Popular Mechanics inspires, instructs and influences readers to help them master the modern world. Whether it’s practical DIY home-improvement tips, gadgets and digital technology, information on the newest cars or the latest breakthroughs in science -- PM is the ultimate guide to our high-tech lifestyle.
Popular Mechanics
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Author :
language : en
Publisher:
Release Date : 1964-04
Popular Mechanics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964-04 with categories.
Popular Mechanics inspires, instructs and influences readers to help them master the modern world. Whether it’s practical DIY home-improvement tips, gadgets and digital technology, information on the newest cars or the latest breakthroughs in science -- PM is the ultimate guide to our high-tech lifestyle.
Search For Metastable Heavy Charged Particles With Large Ionization Energy Loss In Pp Collisions At S
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Author :
language : en
Publisher:
Release Date : 2016
Search For Metastable Heavy Charged Particles With Large Ionization Energy Loss In Pp Collisions At 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.
This study presents a search for massive charged long-lived particles produced in pp collisions at √s = 13TeV at the LHC using the ATLAS experiment. The data set used corresponds to an integrated luminosity of 3.2 fb–1. Many extensions of the Standard Model predict the existence of massive charged long-lived particles, such as R-hadrons. These massive particles are expected to be produced with a velocity significantly below the speed of light, and therefore to have a specific ionization higher than any Standard Model particle of unit charge at high momenta. The Pixel subsystem of the ATLAS detector is used to measure the ionization energy loss of reconstructed charged particles and to search for such highly ionizing particles. The search presented here has much greater sensitivity than a similar search performed using the ATLAS detector in the √s = 8TeV data set, thanks to the increase in expected signal cross section due to the higher center-of-mass energy of collisions, to an upgraded detector with a new silicon layer close to the interaction point, and to analysis improvements. No significant deviation from Standard Model background expectations is observed, and lifetime-dependent upper limits on R-hadron production cross sections and masses are set. Gluino R-hadrons with lifetimes above 0.4 ns and decaying to qq¯ plus a 100 GeV neutralino are excluded at the 95% confidence level, with lower mass limit ranging between 740 and 1590 GeV. In the case of stable R-hadrons the lower mass limit at the 95% confidence level is 1570 GeV.
Search For Metastable Heavy Charged Particles With Large Ionisation Energy Loss In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2015
Search For Metastable Heavy Charged Particles With Large Ionisation Energy Loss 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 2015 with categories.
Many extensions of the Standard Model predict the existence of charged heavy long-lived particles, such as R-hadrons or charginos. These particles, if produced at the Large Hadron Collider, should be moving non-relativistically and are therefore identifiable through the measurement of an anomalously large specific energy loss in the ATLAS pixel detector. Measuring heavy long-lived particles through their track parameters in the vicinity of the interaction vertex provides sensitivity to metastable particles with lifetimes from 0.6 ns to 30 ns. A search for such particles with the ATLAS detector at the Large Hadron Collider is presented, based on a data sample corresponding to an integrated luminosity of \(18.4\) fb\(^{-1}\) of pp collisions at \(\sqrt{s} = 8\) TeV. No significant deviation from the Standard Model background expectation is observed, and lifetime-dependent upper limits on R-hadrons and chargino production are set. Gluino R-hadrons with 10 ns lifetime and masses up to 1185 GeV are excluded at 95 \(\%\) confidence level, and so are charginos with 15 ns lifetime and masses up to 482 GeV.