An NLO QCD analysis of inclusive cross-section and jet-production data from the ZEUS experiment
2005
The ZEUS inclusive differential
cross-section datafrom
HERA, for charged and
neutral currentprocesses taken with e(+) and e(-) beams, together with differential
cross-section dataon inclusive jet production in e+ p scattering and dijet production in gamma p scattering, have been used in a new NLO QCD analysis to extract the parton distribution functions of the proton. The input of jet-production data constrains the gluon and allows an accurate extraction of alpha(s)( M-Z) at NLO;alpha(s)( M-Z) = 0.1183 +/- 0.0028( exp.) +/- 0.0008( model).An additional uncertainty from the choice of scales is estimated as +/- 0.005. This is the first extraction of as( M-Z) from
HERAdata alone.
Keywords:
-
Correction
-
Source
-
Cite
-
Save
57
References
108
Citations
NaN
KQI