Impact of Higher Order and Soft Gluon Corrections on the Extraction of Higher Twist Effects in DIS

Details Impact of Higher Order and Soft Gluon Corrections on the Extraction of Higher Twist Effects in DIS Impact of Higher Order and Soft Gluon Corrections on the Extraction of Higher Twist Effects in DIS

2001-05-17

arxiv.org/abs/hep-ph/0105174v1

Phys.Lett. B514 (2001) 284-292

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 3 figures

Scientific paper

10.1016/S0370-2693(01)00809-7

The impact of recently calculated next-to-next-to-leading order QCD corrections and soft gluon resummations on the extraction of higher twist contributions to the deep-inelastic structure function F_2 is studied using the BCDMS and SLAC data. It is demonstrated to which extent the need for higher twist terms is diminishing due to these higher order effects in the kinematical region, 0.35 \le x \le 0.85 and Q^2>1.2 GeV^2, investigated. In addition, theoretical uncertainties in the extraction of higher twist contributions are discussed, and comparisons to results obtained previously are made.

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