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The European Physical Journal C
ISSN: 1434-6044 (printed version)
ISSN: 1434-6052 (electronic version)
Abstract Volume 1 Issue 3/4 (1998) pp 539-546
theoretical physics:
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
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 $e^+e^-$ 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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Online publication: February 5, 1998
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