How well can we guess theoretical uncertainties?

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 trun...

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Bibliographic Details
Published in:Physics letters. B 2013-10, Vol.726 (1-3), p.266-272
Main Authors: David, André, Passarino, Giampiero
Format: Article
Language:English
Subjects:
Approximation
Elementary particles
Mathematical analysis
Nuclear fusion
Perturbation theory
Probability distribution functions
Series (mathematics)
Uncertainty
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Summary: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.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2013.08.025