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Search For Neutral Long Lived Particles In Pp Collisions At Square Roots
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Book Synopsis Search for Neutral Long-lived Particles in Pp Collisions at [square Root]s by : [Study Group] ATLAS Collaboration CERN
Download or read book Search for Neutral Long-lived Particles in Pp Collisions at [square Root]s written by [Study Group] ATLAS Collaboration CERN and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis A Search for Long Lived Neutral Particles Decaying to Hadronic States in Proton-proton Collisions in the ATLAS Detector at Sqrt(s) by : Rachel Rosten
Download or read book 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 published by . This book was released on 2017 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis 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 by : [Study Group] ATLAS Collaboration CERN
Download or read book 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 published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Search for Long-lived Resonance Decaying to a Dilepton Pair in Pp Collisions at [square Root of S] by : Siinn Che
Download or read book Search for Long-lived Resonance Decaying to a Dilepton Pair in Pp Collisions at [square Root of S] written by Siinn Che and published by . This book was released on 2018 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Heavy, Long-lived Particles that Decay to Photons in Ppbar Collisions at Sqrt(s) by : Peter Wagner
Download or read book Search for Heavy, Long-lived Particles that Decay to Photons in Ppbar Collisions at Sqrt(s) written by Peter Wagner and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation presents the results of the first search for heavy, neutral, longlived particles that decay to photons at a hadron collider. We use a sample of +jet+missing transverse energy events in pp̄ collisions at s = 1.96 TEV taken with the Collider Detector at Fermilab. Candidate events are selected based on the arrival time of a high-energy photon at the electromagnetic calorimeter as measured with a timing system that was recently installed. The final result is that we find 2 events, using 570"34 pb−1 of data collected during 2004-2005 at the Fermilab Tevatron, consistent with the background estimate of 1.3"0.7 events.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for a Neutral Long-Lived Particle Decaying to B-Jets by :
Download or read book Search for a Neutral Long-Lived Particle Decaying to B-Jets written by and published by . This book was released on 2009 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: The existence of the Higgs boson is required by the Standard Model of particle physics, yet it has not been observed. The precise nature of the Higgs boson is unknown and the mechanism by which it interacts with known Standard Model particles is also not known. Long-lived, electrically neutral hadrons have recently been proposed in hidden-valley models and could constitute a pathway through which the Higgs boson communicates with the Standard Model. Such a scenario may provide a novel path to Higgs discovery at the Tevatron. This thesis describes a search for a neutral, long-lived particle produced in decays of Higgs bosons in p{bar p} collisions at a center-of-mass energy of (square root)s = 1.96 TeV, which decays to b-jets and lives long enough to travel at least 1.6 cm before decaying. This analysis uses 3.65 fb−1 of data recorded with the Run II D0 detector at the Fermilab Tevatron collider from April 2002 to August of 2008. We perform a search for eight possible hidden-valley scenarios resulting from a Higgs decay. No significant excess over background is observed and cross-section limits are placed at 95% CL.
Book Synopsis A Search in the Two-photon Final State for Evidence of New Particle Production in Pp Collisions at [square Root] 8 by : Rachel Paula Yohay
Download or read book A Search in the Two-photon Final State for Evidence of New Particle Production in Pp Collisions at [square Root] 8 written by Rachel Paula Yohay and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Heavy Long-lived Charged Particles with the ATLAS Detector in Pp Collisions at √s by : Shikma Bressler
Download or read book Search for Heavy Long-lived Charged Particles with the ATLAS Detector in Pp Collisions at √s written by Shikma Bressler and published by . This book was released on 2011 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of WWW Production and Search for Supersymmetric Particles in Multi-lepton Final States in Pp Collisions at [square Root]8 by : Martina Javůrková
Download or read book Measurement of WWW Production and Search for Supersymmetric Particles in Multi-lepton Final States in Pp Collisions at [square Root]8 written by Martina Javůrková and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Emerging Trends in Oral Health Sciences and Dentistry by : Mandeep Virdi
Download or read book Emerging Trends in Oral Health Sciences and Dentistry written by Mandeep Virdi and published by BoD – Books on Demand. This book was released on 2015-03-11 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging Trends in Oral Health Sciences and Dentistry is the second book on Oral Health Science. The first book is Oral Health Care-Pediatric, Research, Epidemology and clinical Practices and Oral Health Care-Prosthodontics, Periodontology, Biology, Research and systemic Conditions published in February 2012. The present book is a reflection of the progress in Oral Health Sciences, practices and dentistry indicating the direction in which this stream of knowledge and education is likely to head forward. The book covers areas of General Dentistry, Paediatric and Preventive Dentistry, Geriatric and Prosthodontics, Orthodontics, Periodontology, Conservative Dentistry and Radiology and Oral Medicine.
Book Synopsis Search for New Particles Decaying to Dijets in PP̄ Collisions at [square Root Symbol] S by : Chao Wei
Download or read book Search for New Particles Decaying to Dijets in PP̄ Collisions at [square Root Symbol] S written by Chao Wei and published by . This book was released on 1996 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Massive, Long-lived Particles in Final States with a Multi-track Displaced Vertex and an Electron in Pp Collisions at √s by : Nimrod Taiblum
Download or read book Search for Massive, Long-lived Particles in Final States with a Multi-track Displaced Vertex and an Electron in Pp Collisions at √s written by Nimrod Taiblum and published by . This book was released on 2017 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Decays of Stopped Long-lived Particles Produced in Proton-proton Collisions at [arrow]" by :
Download or read book Search for Decays of Stopped Long-lived Particles Produced in Proton-proton Collisions at [arrow]" written by and published by . This book was released on 2015 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Long-lived Neutral Particles in Final States with a Muon and Multi-track Displaced Vertex with the ATLAS Detector at the Large Hadron Collider by : Chang Wei Loh
Download or read book Search for Long-lived Neutral Particles in Final States with a Muon and Multi-track Displaced Vertex with the ATLAS Detector at the Large Hadron Collider written by Chang Wei Loh and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for a Fourth-generation Quark More Massive Than the Z0 Boson in P−p Collisions at [square-root]s by : Joao Pedro Barreiro Guimaraes da Costa
Download or read book 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 published by . This book was released on 2000 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Exotic Long-lived Particles Using Disappearing Tracks with the CMS Experiment in Proton-proton Collisions at √s by : Viktor Gerhard Kutzner
Download or read book Search for Exotic Long-lived Particles Using Disappearing Tracks with the CMS Experiment in Proton-proton Collisions at √s written by Viktor Gerhard Kutzner and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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