Publications [#309239] of Seog Oh

Papers Published

1. Aaltonen, TEA, Measurement of the Cross Section for Prompt Isolated Diphoton Production in $p\overline{p}$ Collisions at $\sqrt{s}=1.96\text{\,}\text{\,}\mathrm{TeV}$, Phys. Rev. Lett., vol. 107 no. 10 (September, 2011), pp. 102003, American Physical Society [doi]
   (last updated on 2026/01/19)

   Abstract:
   This Letter reports a measurement of the cross section of prompt isolated photon pair production in pp collisions at a total energy square root(s)=1.96  TeV using data of 5.36  fb(-1) integrated luminosity collected with the CDF II detector at the Fermilab Tevatron. The measured cross section, differential in basic kinematic variables, is compared with three perturbative QCD predictions, a leading order parton shower calculation and two next-to-leading order calculations. The next-to-leading order calculations reproduce most aspects of the data. By including photon radiation from quarks before and after hard scattering, the parton shower prediction becomes competitive with the next-to-leading order predictions.