Search For Neutral Long Lived Particles In Pp Collisions At Square Root S

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Search For Neutral Long Lived Particles 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 Neutral Long Lived Particles 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 decays of pair-produced neutral long-lived particles (LLPs) is presented using 139 fb−1 of proton-proton collision data collected by the ATLAS detector at the LHC in 2015-2018 at a centre-of-mass energy of 13 TeV. Dedicated techniques were developed for the reconstruction of displaced jets produced by LLPs decaying hadronically in the ATLAS hadronic calorimeter. Two search regions are defined for different LLP kinematic regimes. The observed numbers of events are consistent with the expected background, and limits for several benchmark signals are determined. For a SM Higgs boson with a mass of 125 GeV, branching ratios above 10% are excluded at 95% confidence level for values of c times LLP mean proper lifetime in the range between 20 mm and 10 m depending on the model. Upper limits are also set on the cross-section times branching ratio for scalars with a mass of 60 GeV and for masses between 200 GeV and 1 TeV

Energy Research Abstracts

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Author :
language : en
Publisher:
Release Date : 1990

Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Power resources categories.

Search For A Fourth Generation Quark More Massive Than The Z0 Boson In P P Collisions At Square Root S

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Author : Joao Pedro Barreiro Guimaraes da Costa
language : en
Publisher:
Release Date : 2000

Search For A Fourth Generation Quark More Massive Than The Z0 Boson In P P Collisions At Square Root S written by Joao Pedro Barreiro Guimaraes da Costa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.

Search For Events With A Pair Of Displaced Vertices From Long Lived Neutral Particles Decaying Into Hadronic Jets In The Atlas Muon Spectrometer 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 Events With A Pair Of Displaced Vertices From Long Lived Neutral Particles Decaying Into Hadronic Jets In The Atlas Muon Spectrometer 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 events with two displaced vertices from long-lived particle (LLP) pairs using data collected by the ATLAS detector at the LHC is presented. This analysis uses 139 fb−1 of proton-proton collision data at √s=13 TeV recorded in 2015-2018. The search employs techniques for reconstructing vertices of LLPs decaying to jets in the muon spectrometer displaced between 3 and 14 m with respect to the primary interaction vertex. The observed numbers of events are consistent with the expected background and limits for several benchmark signals are determined. For the Higgs boson with a mass of 125 GeV, the paper reports the first exclusion limits for branching fractions into neutral long-lived particles below 0.1%, while branching fractions above 10% are excluded at 95% confidence level for LLP proper lifetimes ranging from 4 cm to 72.4 m. In addition, the paper present the first results for the decay of LLPs into t ̄t in the ATLAS muon spectrometer

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1995

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.

Annual Report Of The European Organization For Nuclear Research

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Author : European Organization for Nuclear Research
language : en
Publisher:
Release Date : 2003

Annual Report Of The European Organization For Nuclear Research written by European Organization for Nuclear Research and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Nuclear physics categories.

A Search For Long Lived Neutral Particles Decaying To Hadronic States In Proton Proton Collisions In The Atlas Detector At Sqrt S

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Author : Rachel Rosten
language : en
Publisher:
Release Date : 2017

A Search For Long Lived Neutral Particles Decaying To Hadronic States In Proton Proton Collisions In The Atlas Detector At Sqrt S written by Rachel Rosten and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.

A search for the decay of a heavy scalar boson into pairs of long-lived neutral particles in \intlumi of proton proton collisions at $\sqrt{s}=8$~TeV and $3.2~\rm{fb}^{-1}$ at $\sqrt{s}=13$~TeV in the ATLAS detector is presented. The search focuses on final states where both long lived particles decay within the hadronic calorimeter of the detector, resulting in jets with unusual properties. No excess was observed and limits were set on the lifetime of the long lived particles for various combinations of scalar boson and long lived particle masses.

Inis Atomindeks

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Author :
language : en
Publisher:
Release Date : 1988

Inis Atomindeks 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.

Measurement Of The Tt Production Cross Section In The Lepton Plus Jets Channel In P P Collisions At Square Root 8

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Author : Chyi-Chang Miao
language : en
Publisher:
Release Date : 1997

Measurement Of The Tt Production Cross Section In The Lepton Plus Jets Channel In P P Collisions At Square Root 8 written by Chyi-Chang Miao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.

American Doctoral Dissertations

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Author :
language : en
Publisher:
Release Date : 1985

American Doctoral Dissertations written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Dissertation abstracts categories.