A NEW WAY OF REDUCING NEGATIVE WEIGHTS IN MC@NLO

A new way of reducing negative weights in MC@NLO

A new way of reducing negative weights in MC@NLO

Blog Article

Abstract We introduce a new technique, that ultrastar dc hc550 we dub Born spreading, aimed at reducing the number of negative-weight $${mathbb {S}}$$ S events in the MC@NLO matching of NLO calculations with parton-shower simulations.We show that such a technique, based on a re-distribution of Born matrix elements in the radiative phase space, achieves a sizeable reduction of negative-weight events at little computational cost.The method does not induce any biases dosatron d40mz2 in physical distributions.

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