Search for New Phenomena in Dijet Angular Distributions in Proton-Proton Collisions at root s=8 TeV Measured with the ATLAS Detector

A search for new phenomena in LHC proton-proton collisions at a center-of-mass energy of root s = 8 TeV was performed with the ATLAS detector using an integrated luminosity of 17.3 fb(-1). The angular distributions are studied in events with at least two jets; the highest dijet mass observed is 5.5...

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Bibliographic Details
Published in:Physical review letters 2015, Vol.114 (22)
Main Authors: Aad, G., Lund-Jensen, Bengt, Morley, Anthony, Strandberg, Jonas, Zwalinski, L., et al
Format: Article
Language:English
Subjects:
Computation
Hadron Colliders
Jet Cross-Sections
Lhc
Parton Distributions
Quark Contact Interactions
Online Access:Get full text
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Summary:A search for new phenomena in LHC proton-proton collisions at a center-of-mass energy of root s = 8 TeV was performed with the ATLAS detector using an integrated luminosity of 17.3 fb(-1). The angular distributions are studied in events with at least two jets; the highest dijet mass observed is 5.5 TeV. All angular distributions are consistent with the predictions of the standard model. In a benchmark model of quark contact interactions, a compositeness scale below 8.1 TeV in a destructive interference scenario and 12.0 TeV in a constructive interference scenario is excluded at 95% C.L.; median expected limits are 8.9 TeV for the destructive interference scenario and 14.1 TeV for the constructive interference scenario.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.114.221802