a "hot" topic for ZEUS and H1 ! Both H1 and ZEUS use EPVEC generator for W production. Recent calculation of this process using COMPHEP package showed some disagreements with EPVEC (regions of phase space absent in EPVEC)
Hence, Project = compare deeply into details W production calculation by EPVEC, COMPHEP and GRACE, understand the differences. Consider higher order corrections.
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