Tuesday, July 9, 2013

1307.1843 (André David et al.)

How well can we guess theoretical uncertainties?    [PDF]

André David, Giampiero Passarino
The problem of estimating the effect of missing higher orders in perturbation theory is analyzed with emphasis in the application to Higgs production in gluon-gluon fusion. Well-known mathematical methods for an approximated completion of the perturbative series are applied with the goal to not truncate the series, but complete it in a well-defined way, so as to increase the accuracy - if not the precision - of theoretical predictions. The uncertainty arising from the use of the completion procedure is discussed and a recipe for constructing a corresponding probability distribution function is proposed.
View original: http://arxiv.org/abs/1307.1843

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