Search for narrow diphoton resonances and for γγ+W/Z signatures in pp̅ collisions at √s=1.8 TeV

Authors

T. Affolder, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California
Kenneth A. Bloom, University of Nebraska-LincolnFollow
Collider Detector at Fermilab Collaboration

Date of this Version

11-1-2001

Comments

Published by American Physical Society. Phys. Rev. D 64, 092002 (2001). http://prd.aps.org. Copyright © 2001 American Physical Society. Permission to use.

Abstract

We present results of searches for diphoton resonances produced both inclusively and also in association with a vector boson (W or Z) using 100 pb^-1 of pp̅ collisions using the CDF detector. We set upper limits on the product of cross section times branching ratio for both pp̅→ γγ+X and pp̅→ γγ+ W/Z. Comparing the inclusive production to the expectations from heavy sgoldstinos we derive limits on the supersymmetrybreaking scale √F in the TeV range, depending on the sgoldstino mass and the choice of other parameters. Also, using a NLO prediction for the associated production of a Higgs boson with a W or Z boson, we set an upper limit on the branching ratio for H→ γγ. Finally, we set a lower limit on the mass of a ‘‘bosophilic’’ Higgs boson (e.g., one which couples only to γ, W, and Z bosons with standard model couplings! of 82 GeV/c² at 95% confidence level.