The NLO DGLAP extraction of alpha(s) and higher twist terms from CCFR xF(3) and F-2 structure functions: results and scale dependence

Authors
Alekhin, SI Kataev, AL
Citation
Si. Alekhin et Al. Kataev, The NLO DGLAP extraction of alpha(s) and higher twist terms from CCFR xF(3) and F-2 structure functions: results and scale dependence, NUCL PHYS A, 666, 2000, pp. 179C-183C
Citations number
32
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS A
ISSN journal
03759474 → ACNP
Volume
666
Year of publication
2000
Pages
179C - 183C
Database
ISI
SICI code
0375-9474(20000313)666:<179C:TNDEOA>2.0.ZU;2-S
Abstract
We perform a detailed NLO analysis of the combined CCFR xF(3) and F-2 struc ture functions data and extract the value of alpha(s), parameters of distri butions and higher-twist (HT) terms using a direct solution of the DGLAP eq uation. The value of alpha(s)(M-Z) = 0.1222 +/- 0.0048(exp) +/- 0.0026(theo r) is obtained. Our result has a larger central value and errors than the o riginal one of the CCFR collaboration due to model independent parametrizat ion of the HT contributions. The dependence of HT contributions on the QCD renormalization scale is studied.