Changes between Version 59 and Version 60 of Reweight


Ignore:
Timestamp:
Jan 19, 2018, 10:16:06 PM (7 years ago)
Author:
Olivier Mattelaer
Comment:

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  • Reweight

    v59 v60  
    22
    33= Description of the method =
     4
     5Note that all the description here are present in more details in the following paper: https://arxiv.org/abs/1607.00763. (This is actually the official reference to cite if you use the re-weighting inside MG5aMC)
     6
    47 The method consists in using a sample of events (weighted or unweighted) generated under a certain theoretical hypothesis (a model and its parameters with given values), and in associating with those events an additional weight that corresponds to a new theoretical hypothesis (a different model, and/or different parameter choices); both the original and the additional weights are thus based solely on matrix-element computations.
    58 Once computed, the additional weight can be propagated through all of the simulation chain, and saves one from performing eg a full simulation on an additional event sample.