1996/12/12 by S. Abachi, B. Abbott, M. Abolins +96 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.1103/physrevlett.78.2070
published as Phys.Rev.Lett.78:2070-2074,1997 · 6 pp, LaTeX, 2 postscript figures. Submitted to Physical Review Letters
arxiv created 1996/12/12 · openalex publication_date 1997/03/17 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
A search for new physics has been carried out in the channel pp\ensuremath→\ensuremathγ\ensuremathγ+ET, as expected in various supersymmetric models. We require two photons with transverse energy ET^\ensuremathγ>12GeV and pseudorapidity |\ensuremathη^\ensuremathγ|<1.1. The distribution of missing transverse energy ( ET) is consistent with background and no events have ET>25GeV. 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 \ensuremathσ(pp\ensuremath→\ensuremathγ\ensuremathγET+X), where ET^\ensuremathγ>12GeV, |\ensuremathη^\ensuremathγ|<1.1, and ET>25GeV.