An NLO calculation of the electroproduction of large-E $_{\bot}$ hadrons

The European Physical Journal C - Tập 34 - Trang 277-284 - 2004
P. Aurenche1, Rahul Basu2, M. Fontannaz3, R. M. Godbole4
1LAPTH, UMR5108 du CNRS associée á l’Université de Savoie, Annecy-le-Vieux Cedex, France
2The Institute of Mathematical Sciences, Chennai, India
3Laboratoire de Physique Théorique, UMR 8627 CNRS, Université Paris XI, Orsay Cedex, France
4Centre for Theoretical Studies, Indian Institute of Science, Bangalore, India

Tóm tắt

We present a next-to-leading order calculation of the cross section for the leptoproduction of large- $E_{\bot}$ hadrons and we compare our predictions with H1 data on the forward production of ${\rm\pi}^0$ . We find large higher order corrections and an important sensitivity to the renormalization and factorization scales. These large corrections are shown to arise in part from BFKL-like diagrams at the lowest order.

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