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 p (p) over bar collisions using the CDF detector. We set upper limits on the product of cross section times branching ratio for both p (p) over bar --> gamma gamma +X and p (p) over bar --> gamma gamma+ W/Z. Comparing the inclusive production to the expectations from heavy sgoldstinos we derive limits on the supersymmetry-breaking scale rootF 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 --> gamma gamma. Finally, we set a lower limit on the mass of a "bosophilic" Higgs boson (e.g., one which couples only to gamma, W, and Z bosons with standard model couplings) of 82 GeV/c(2) at 95% confidence level.

Search for narrow diphoton resonances and for gamma gamma+W/Z signatures in p(p)over-bar collisions at root s=1.8 TeV / Affolder T; Pauletta G; et al.; The CDF Collaboration. - In: PHYSICAL REVIEW D. - ISSN 0556-2821. - 64:9(2001).

Search for narrow diphoton resonances and for gamma gamma+W/Z signatures in p(p)over-bar collisions at root s=1.8 TeV

PAULETTA, Giovanni;
2001

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 p (p) over bar collisions using the CDF detector. We set upper limits on the product of cross section times branching ratio for both p (p) over bar --> gamma gamma +X and p (p) over bar --> gamma gamma+ W/Z. Comparing the inclusive production to the expectations from heavy sgoldstinos we derive limits on the supersymmetry-breaking scale rootF 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 --> gamma gamma. Finally, we set a lower limit on the mass of a "bosophilic" Higgs boson (e.g., one which couples only to gamma, W, and Z bosons with standard model couplings) of 82 GeV/c(2) at 95% confidence level.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11390/861438
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