NLO Monte Carlo Techniques
Although LO calculations generally describe broad features of a particular process and provide the first estimate of its cross section, in many cases this approximation is insufficient. The inherent uncertainty in a lowest-order calculation derives from its dependence on the unphysical renormalization and factorization scales, which is often large. In addition, some processes may contain large logarithms that need to be resummed, or extra partonic processes may contribute only when going beyond the first approximation.
KeywordsPhase Space Subtraction Term Virtual Correction Subtraction Scheme Resolution Factor
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