Search for High Mass Photon Pairs in 2Photon+2Jet Events

Replies to the Physics Comments

posted as of 3-5-1998

  • Comments

    PRL Drafts

    PRL draft #11, 7-03-98

  • prl #11

    PRL draft #10, 6-08-98

  • prl #10

    PRL draft #9, 4-11-98

  • prl #9

    PRL draft #8, 3-1-98

  • prl #8

    PRL draft #7, 2-24-98

  • prl #7

    PRL draft #6, 2-10-98

  • prl #6

    PRL draft #5

  • prl #5

    PRL draft #4

  • prl #4

    PRL draft #3

  • prl #3

    PRL draft #2

  • prl #2

    PRL draft #1

  • prl #1

    Draft Notes of Search

    A sixth draft of this analysis is posted. Comments are welcome.

  • Draft 6

    A fifth draft of this analysis is posted. Comments are welcome.

  • Draft 5

    A fourth draft of this analysis is posted. Comments are welcome.

  • Draft 4

    A third draft of this analysis is posted. Comments are welcome.

  • Draft 3

    A second draft of this analysis is posted. Comments are welcome.

  • Draft 2

    A first draft of this analysis is posted. Comments are welcome.

  • Draft 1

    Reference Notes

    Reference 13, D0note3176, from ggjj search paper.

  • notrk_inroad_eff.ps

    Reference 14, D0note2964, from ggjj search paper.

  • prob_jet_gamma.ps

    Reference 15, D0note3059, from ggjj search paper.

  • ggjj_back.ps

    The analysis has an Editorial Board EB102

    Additional Plots

    Dijet mass vs Diphoton mass for the general selection criteria...

  • dijet verses diphot

    The diphoton mass distribution without any jet and hitsinfo requirements.

  • diphoton mass distribution

    Using a sideband method to calculate the expected number of events between 150 - 165, I would expect 13.9 +- 2.3 (stat) events. I observe 17 +- 4.1 (stat), nothing is going on here. A clear Z --> ee peak is seen, and is consistent with tracking inefficiences. The blip at 120 GeV/c^2 is more interesting on this plot than our interests at 155. The events have NO HITSINFO requirements made, which would clean up the event sample from Z's and some QCD jet faking photons as well....


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