Search for high-mass diphoton resonances in pp collisions at √s = 8 TeV with the ATLAS detector

Allison, Lee and Barton, Adam and Beattie, Michael and Borissov, Guennadi and Bouhova-Thacker, Eva and Chilingarov, Alexandre and Dearnaley, William and Fox, Harald and Grimm, Kathryn and Henderson, Robert and Hughes, Gareth and Jones, Roger William Lewis and Kartvelishvili, Vakhtang and Long, Robin and Love, Peter and Maddocks, Harvey and Skinner, Malcolm and Smizanska, Maria and Walder, James and Wharton, Andy (2015) Search for high-mass diphoton resonances in pp collisions at √s = 8  TeV with the ATLAS detector. Physical Review D, 92 (3). ISSN 1550-7998

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This article describes a search for high-mass resonances decaying to a pair of photons using a sample of 20.3  fb −1 of pp collisions at √s =8  TeV recorded with the ATLAS detector at the Large Hadron Collider. The data are found to be in agreement with the Standard Model prediction, and limits are reported in the framework of the Randall-Sundrum model. This theory leads to the prediction of graviton states, the lightest of which could be observed at the Large Hadron Collider. A lower limit of 2.66 (1.41) TeV at 95% confidence level is set on the mass of the lightest graviton for couplings of k/M Pl = 0.1 (0.01).

Item Type:
Journal Article
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Physical Review D
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This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2015 CERN, for the ATLAS Collaboration Date of acceptance not available
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14 Sep 2015 09:30
Last Modified:
12 Jul 2020 05:14