CDF Logo Search for Anomalous Diphoton+X Production Exotics Logo

This document describes a search for events with two photons and additional identified objects. So far, the additional object may be an electron, muon, missing Et or a third photon. The data are collected in p-pbar collisions at s1/2=1.96 TeV with the CDF detector at the Fermilab Tevatron, Run II. We use nominal high-ET object identification and kinematic selections. We report observed event counts, Standard Model background predictions, and kinematic distributions.



Plots and Tables, X = Missing-ET
Results in 2 fb-1

Plots and Tables, X=e or mu:


Note that in order to make the error bars on the total number of background visible, the "Antialias" option in the ghostview has to be "unchecked".
All the background are stacked.

All Electron
     Central Electron
    Plug Electron

Diphoton + central electron event display 1: COT, LEGO
Diphoton + central electron event display 2: COT, LEGO
Diphoton + plug electron event display: COT, LEGO
All Muon
    CMUP (|eta|<0.6) Muon
    CMX (0.6<|eta|<1.0) Muon


Plots and Tables, X=photon:

3rd (lowest Et) Photon Et EPS
Diphoton mass, 3 entries for event EPS
3 photon mass EPS
Missing Et EPS
Ht = Sum Et of photons, MEt, and all jets with corrected Et>15 (no eta cut). EPS



Plots and Tables, X=Tau:

loose tau (jet) to tau fake rate EPS GIF
Tau Et EPS GIF
Ht = Sum Et of photons, Tau, MEt, and all jets with corrected Et>15 (no eta cut). EPS GIF
Diphoton mass EPS GIF
Missing Et EPS GIF
NJet (Corrected Et>15, no eta cut) EPS GIF


This page was last updated 8/8/2007 by Ray.
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