Search For Extra Dimensions Using Diphoton Events In 7 Tev Proton Proton Collisions With The Atlas Detector
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Total Pages |
: 20 |
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: 2013 |
ISBN-10 |
: OCLC:951616220 |
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Rating |
: 4/5 (20 Downloads) |
Synopsis Search for Extra Dimensions Using Diphoton Events in 7 TeV Proton-Proton Collisions with the ATLAS Detector by :
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Release |
: 2011 |
ISBN-10 |
: OCLC:873875418 |
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Rating |
: 4/5 (18 Downloads) |
Synopsis Search for Signatures of Extra Dimensions in the Diphoton Mass Spectrum at the Large Hadron Collider by :
A search for signatures of extra dimensions in the diphoton invariant-mass spectrum has been performed with the CMS detector at the LHC. No excess of events above the standard model expectation is observed using a data sample collected in proton-proton collisions at √s = 7 TeV corresponding to an integrated luminosity of 2.2 fb−1. In the context of the large-extra-dimensions model, lower limits are set on the effective Planck scale in the range of 2.3-3.8 TeV at the 95% confidence level. These limits are the most restrictive bounds on virtual-graviton exchange to date. The most restrictive lower limits to date are also set on the mass of the first graviton excitation in the Randall-Sundrum model in the range of 0.86-1.84 TeV, for values of the associated coupling parameter between 0.01 and 0.10.
Author |
: Johanna Gramling |
Publisher |
: Springer |
Total Pages |
: 290 |
Release |
: 2018-08-01 |
ISBN-10 |
: 9783319950167 |
ISBN-13 |
: 3319950169 |
Rating |
: 4/5 (67 Downloads) |
Synopsis Search for Dark Matter with the ATLAS Detector by : Johanna Gramling
This book discusses searches for Dark Matter at the CERN’s LHC, the world’s most powerful accelerator. It introduces the relevant theoretical framework and includes an in-depth discussion of the Effective Field Theory approach to Dark Matter production and its validity, as well as an overview of the formalism of Simplified Dark Matter models. Despite overwhelming astrophysical evidence for Dark Matter and numerous experimental efforts to detect it, the nature of Dark Matter still remains a mystery and has become one of the hottest research topics in fundamental physics. Two searches for Dark Matter are presented, performed on data collected with the ATLAS experiment. They analyze missing-energy final states with a jet or with top quarks. The analyses are explained in detail, and the outcomes and their interpretations are discussed, also in view of the precedent analysis of theoretical approaches. Given its depth of coverage, the book represents an excellent reference guide for all physicists interested in understanding the theoretical and experimental considerations relevant to Dark Matter searches at the LHC.
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Publisher |
: ScholarlyEditions |
Total Pages |
: 1176 |
Release |
: 2013-05-01 |
ISBN-10 |
: 9781490109527 |
ISBN-13 |
: 1490109528 |
Rating |
: 4/5 (27 Downloads) |
Synopsis Issues in General Physics Research: 2013 Edition by :
Issues in General Physics Research / 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Quantum Physics. The editors have built Issues in General Physics Research: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Quantum Physics in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in General Physics Research: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
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Total Pages |
: 20 |
Release |
: 2013 |
ISBN-10 |
: OCLC:1065883787 |
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: |
Rating |
: 4/5 (87 Downloads) |
Synopsis Search for Diphoton Events with Large Missing Transverse Energy in 7 TeV Proton-Proton Collisions with the ATLAS Detector by :
Author |
: Steven Schramm |
Publisher |
: Springer |
Total Pages |
: 341 |
Release |
: 2016-11-23 |
ISBN-10 |
: 9783319444536 |
ISBN-13 |
: 3319444530 |
Rating |
: 4/5 (36 Downloads) |
Synopsis Searching for Dark Matter with the ATLAS Detector by : Steven Schramm
This thesis describes the search for Dark Matter at the LHC in the mono-jet plus missing transverse momentum final state, using the full dataset recorded in 2012 by the ATLAS Experiment. It is the first time that the number of jets is not explicitly restricted to one or two, thus increasing the sensitivity to new signals. Instead, a balance between the most energetic jet and the missing transverse momentum is required, thus selecting mono-jet-like final states. Collider searches for Dark Matter have typically used signal models employing effective field theories (EFTs), even when comparing to results from direct and indirect detection experiments, where the difference in energy scale renders many such comparisons invalid. The thesis features the first robust and comprehensive treatment of the validity of EFTs in collider searches, and provides a means by which the different classifications of Dark Matter experiments can be compared on a sound and fair basis.
Author |
: Lydia Audrey Beresford |
Publisher |
: Springer |
Total Pages |
: 175 |
Release |
: 2018-09-04 |
ISBN-10 |
: 9783319975207 |
ISBN-13 |
: 331997520X |
Rating |
: 4/5 (07 Downloads) |
Synopsis Searches for Dijet Resonances by : Lydia Audrey Beresford
This book addresses one of the most intriguing mysteries of our universe: the nature of dark matter. The results presented here mark a significant and substantial contribution to the search for new physics, in particular for new particles that couple to dark matter. The first analysis presented is a search for heavy new particles that decay into pairs of hadronic jets (dijets). This pioneering analysis explores unprecedented dijet invariant masses, reaching nearly 7 TeV, and sets constraints on several important new physics models. The two subsequent analyses focus on the difficult low dijet mass region, down to 200 GeV, and employ a novel technique to efficiently gather low-mass dijet events. The results of these analyses transcend the long-standing constraints on dark matter mediator particles set by several existing experiments.
Author |
: Ruth Pöttgen |
Publisher |
: Springer |
Total Pages |
: 325 |
Release |
: 2016-06-29 |
ISBN-10 |
: 9783319410456 |
ISBN-13 |
: 3319410458 |
Rating |
: 4/5 (56 Downloads) |
Synopsis Search for Dark Matter with ATLAS by : Ruth Pöttgen
This thesis describes in detail a search for weakly interacting massive particles as possible dark matter candidates, making use of so-called mono-jet events. It includes a detailed description of the run-1 system, important operational challenges, and the upgrade for run-2. The nature of dark matter, which accounts for roughly 25% of the energy-matter content of the universe, is one of the biggest open questions in fundamental science. The analysis is based on the full set of proton-proton collisions collected by the ATLAS experiment at the Large Hadron Collider at √s = 8 TeV. Special attention is given to the experimental challenges and analysis techniques, as well as the overall scientific context beyond particle physics. The results complement those of non-collider experiments and yield some of the strongest exclusion bounds on parameters of dark matter models by the end of the Large Hadron Collider run-1. Details of the upgrade of the ATLAS Central Trigger for run-2 are also included.
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Release |
: 2016 |
ISBN-10 |
: OCLC:958047429 |
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: |
Rating |
: 4/5 (29 Downloads) |
Synopsis Search for Extra Dimensions in Diphoton Events from Proton-proton Collisions at √s by :
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Total Pages |
: 18 |
Release |
: 2013 |
ISBN-10 |
: OCLC:951616285 |
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Rating |
: 4/5 (85 Downloads) |
Synopsis Search for Contact Interactions in Dimuon Events From $Pp$ Collisions at $\sqrt{s} by :