Search for diphoton events with large missing transverse energy in pp̄ collisions at √s = 1.8 TeV

Journal article

A search for new physics has been carried out in the channel pp̄ → γγ + ET, as expected in various supersymmetric models. We require two photons with transverse energy ET > 12 GeV and pseudorapidity |ηγ < 1.1. The distribution of missing transverse energy (ET) is consistent with background and no events have ET > 25 GeV. We set limits on production cross sections for selectron, sneutrino, and neutralino pairs, decaying into photons, which range from about 400 fb to 1 pb depending on the sparticle masses. A general limit of 185 fb (95% C.L.) is set on σ(pp̄ → γγET + X), where ETγ > 12 GeV, |ηγ| < 1.1, and ET > 25 GeV.

Authors: Abachi, S; Abbott, B; Abolins, M; Acharya, B; Adam, I

• Journal: Physical Review Letters
• Volume: 78
• Issue: 11
• Pages: 2070-2074
• Publication date: 1997-01-01
• DOI: 10.1103/PhysRevLett.78.2070
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English