Aneesh Manohar, University of California, San Diego
-
PAT C-421
The photon PDF of the proton is needed for precision comparisons of LHC cross sections with theoretical predictions. A new approach allows the photon PDF to be computed in terms of proton deep-inelastic structure functions, reducing the uncertainty over previous methods by about a factor of 40. W and Z PDFs can be computed by similar methods. The talk discusses the determination of the photon and electroweak gauge boson PDFs.