TY  - JOUR
AU  - Bagnaschi, Emanuele
AU  - Cacciari, Matteo
AU  - Guffanti, Alberto
AU  - Jenniches, Laura
TI  - An extensive survey of the estimation of uncertainties from missing higher orders in perturbative calculations
JO  - Journal of high energy physics
VL  - 2015
IS  - 2
SN  - 1029-8479
CY  - Berlin
PB  - Springer
M1  - PUBDB-2016-00262
M1  - arXiv:1409.5036
SP  - 133
PY  - 2015
AB  - We consider two approaches to estimate and characterise the theoretical uncertainties stemming from the missing higher orders in perturbative calculations in Quantum Chromodynamics: the traditional one based on renormalisation and factorisation scale variation, and the Bayesian framework proposed by Cacciari and Houdeau. We estimate uncertainties with these two methods for a comprehensive set of more than thirty different observables computed in perturbative Quantum Chromodynamics, and we discuss their performance in properly estimating the size of the higher order terms that are known. We find that scale variation with the conventional choice of varying scales within a factor of two of a central scale gives uncertainty intervals that tend to be somewhat too small to be interpretable as 68
LB  - PUB:(DE-HGF)29 ; PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000350298100003
DO  - DOI:10.1007/JHEP02(2015)133
UR  - https://bib-pubdb1.desy.de/record/293097
ER  -