2019 Impact factor 4.389
Particles and Fields
Eur. Phys. J. C 1, 539-546

Power corrections to event shapes in deep inelastic scattering

M. Dasgupta - B.R. Webber

Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, U.K.

Received: 11 April 1997

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 $\relax\ifmmode{e^+e^-}\else{${e^+e^-}$}\fi$ 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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