High-twist contribution to the longitudinal structure function F-L at highx

Authors
Alekhin, SI
Citation
Si. Alekhin, High-twist contribution to the longitudinal structure function F-L at highx, EUR PHY J C, 12(4), 2000, pp. 587-593
Citations number
26
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL C
ISSN journal
14346044 → ACNP
Volume
12
Issue
4
Year of publication
2000
Pages
587 - 593
Database
ISI
SICI code
1434-6044(200002)12:4<587:HCTTLS>2.0.ZU;2-9
Abstract
We perform the NLO QCD fit to the combined deep inelastic scattering (DIS) data at high x from the SLAC, BCDMS, and NMC collaborations. The model-inde pendent x shape of the high-twist contribution to structure function F-L is extracted. The twist-4 contribution to F-L is found to be in a qualitative agreement with the predictions of the infrared renormalon model. The twist -6 contribution exhibits a weak trend to negative values, although on the w hole, it is compatible with zero within the errors.