| QCD Blessing "Photon Cross Section" Dana Partos |
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April 20, 2001
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| Summary: The final Run 1b and 630 GeV photon cross sections are presented. The Run 1b cross section is in good agreement with the Run 1a data. The new cross sections are also consistent with the UA2 and D0 results. However, neither cross section agrees too well with NLO QCD. The two new cross sections are consistent with each other as a function of photon Pt, but there is a significant discrepancy when the two are plotted as a function of photon Xt. Therefore, the choice of PDF and detector effects cannot be the source of the problem. |
| Postscript (PS) file. |
| Also see Steve's talk on April 6, 2001 and Dana's talk on March 23, 2001. |