Abstract
A measurement of direct photons in collisions at is presented. A photon excess above background from , and other decays is observed in the transverse momentum range . The result is compared to a next-to-leading-order perturbative QCD calculation. Within errors, good agreement is found between the QCD calculation and the measured result.
- Received 2 February 2005
DOI:https://doi.org/10.1103/PhysRevD.71.071102
©2005 American Physical Society