ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at √s =7 TeV

Mass and angular distributions of dijets produced in LHC proton-proton collisions at a centre-of-mass energy √s = 7 TeV have been studied with the ATLAS detector using the full 2011 data set with an integrated luminosity of 4.8 fb[superscript −1]. Dijet masses up to ~ 4.0 TeV have been probed. No re...

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Main Author: Taylor, Frank E.
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: Springer-Verlag 2014
Online Access:http://hdl.handle.net/1721.1/86152
https://orcid.org/0000-0002-7586-7253
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author Taylor, Frank E.
author2 Massachusetts Institute of Technology. Department of Physics
author_facet Massachusetts Institute of Technology. Department of Physics
Taylor, Frank E.
author_sort Taylor, Frank E.
collection MIT
description Mass and angular distributions of dijets produced in LHC proton-proton collisions at a centre-of-mass energy √s = 7 TeV have been studied with the ATLAS detector using the full 2011 data set with an integrated luminosity of 4.8 fb[superscript −1]. Dijet masses up to ~ 4.0 TeV have been probed. No resonance-like features have been observed in the dijet mass spectrum, and all angular distributions are consistent with the predictions of QCD. Exclusion limits on six hypotheses of new phenomena have been set at 95% CL in terms of mass or energy scale, as appropriate. These hypotheses include excited quarks below 2.83 TeV, colour octet scalars below 1.86 TeV, heavy W bosons below 1.68 TeV, string resonances below 3.61 TeV, quantum black holes with six extra space-time dimensions for quantum gravity scales below 4.11 TeV, and quark contact interactions below a compositeness scale of 7.6 TeV in a destructive interference scenario.
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spelling mit-1721.1/861522022-09-27T14:23:02Z ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at √s =7 TeV Taylor, Frank E. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. Mass and angular distributions of dijets produced in LHC proton-proton collisions at a centre-of-mass energy √s = 7 TeV have been studied with the ATLAS detector using the full 2011 data set with an integrated luminosity of 4.8 fb[superscript −1]. Dijet masses up to ~ 4.0 TeV have been probed. No resonance-like features have been observed in the dijet mass spectrum, and all angular distributions are consistent with the predictions of QCD. Exclusion limits on six hypotheses of new phenomena have been set at 95% CL in terms of mass or energy scale, as appropriate. These hypotheses include excited quarks below 2.83 TeV, colour octet scalars below 1.86 TeV, heavy W bosons below 1.68 TeV, string resonances below 3.61 TeV, quantum black holes with six extra space-time dimensions for quantum gravity scales below 4.11 TeV, and quark contact interactions below a compositeness scale of 7.6 TeV in a destructive interference scenario. United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2014-04-14T16:38:47Z 2014-04-14T16:38:47Z 2013-01 2012-11 Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/86152 Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A. A. Abdelalim, O. Abdinov, et al. “ATLAS Search for New Phenomena in Dijet Mass and Angular Distributions Using Pp Collisions at √s =7 TeV.” J. High Energ. Phys. 2013, no. 1 (January 2013). © CERN, for the benefit of the ATLAS collaboration https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1007/jhep01(2013)029 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf Springer-Verlag Springer
spellingShingle Taylor, Frank E.
ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at √s =7 TeV
title ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at √s =7 TeV
title_full ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at √s =7 TeV
title_fullStr ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at √s =7 TeV
title_full_unstemmed ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at √s =7 TeV
title_short ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at √s =7 TeV
title_sort atlas search for new phenomena in dijet mass and angular distributions using pp collisions at √s 7 tev
url http://hdl.handle.net/1721.1/86152
https://orcid.org/0000-0002-7586-7253
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