Power Corrections to Event Shapes in Deep Inelastic Scattering

B.R. Webber (Cavendish Laboratory; Cambridge); M. Dasgupta

Power Corrections to Event Shapes in Deep Inelastic Scattering

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arxiv hep-ph/9704297 v1 pith:HTW3ZUCK submitted 1997-04-11 hep-ph

M. Dasgupta , B.R. Webber (Cavendish Laboratory , Cambridge) This is my paper · ORCID

classification hep-ph

keywords correctionsdeepinelasticleadingscatteringshapesanalysisannihilation

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abstract

We investigate the power-suppressed corrections to the mean values of various quantities that characterise the shapes of final states in deep inelastic lepton scattering. Our method is based on an analysis of one-loop Feynman graphs containing a massive gluon, which is equivalent to the evaluation of leading infrared renormalon contributions. As in $\ee$ annihilation, we find that the leading corrections are proportional to $1/Q$. We give quantitative estimates based on the hypothesis of a universal low-energy effective coupling.

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Second-order QCD corrections to event shape distributions in deep inelastic scattering
hep-ph 2019-09 accept novelty 7.0 of 10

The NNLO QCD corrections to DIS event shape distributions and their mean values are computed for the first time, reducing scale uncertainties and improving the description of H1 and ZEUS data.

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