Search for scalar diphoton resonances in the mass range 65-600 GeV with the ATLAS detector in pp collision data at √s=8 TeV.

Journal article

A search for scalar particles decaying via narrow resonances into two photons in the mass range 65-600 GeV is performed using 20.3  fb(-1) of √s 8 TeV pp collision data collected with the ATLAS detector at the Large Hadron Collider. The recently discovered Higgs boson is treated as a background. No significant evidence for an additional signal is observed. The results are presented as limits at the 95% confidence level on the production cross section of a scalar boson times branching ratio into two photons, in a fiducial volume where the reconstruction efficiency is approximately independent of the event topology. The upper limits set extend over a considerably wider mass range than previous searches.

Authors: Aad, G; Abbott, B; Abdallah, J; Abdel Khalek, S; Abdinov, O

• Publication status: Published
• Publisher: American Physical Society
• Journal: Physical Review Letters
• Volume: 113
• Issue: 17
• Pages: 171801
• Publication date: 2014-10-01
• DOI: 10.1103/PhysRevLett.113.171801
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English
• Keywords: (ATLAS Collaboration)