The authors define a generalised-k_t jet algorithm family for DIS in the Breit frame, extending the prior p=0 case, and test its use for struck-quark jet identification and non-perturbative effects.
An NLO QCD analysis of inclusive cross-section and jet-production data from the ZEUS experiment
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abstract
The ZEUS inclusive differential cross-section data from HERA, for charged and neutral current processes taken with e+ and e- beams, together with differential cross-section data on 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 data constrains the gluon and allows an accurate extraction of \alpha_s(M_Z) at NLO; \alpha_s(M_Z) = 0.1183 \pm 0.0028(exp.) \pm 0.0008(model) An additional uncertainty from the choice of scales is estimated as \pm 0.005. This is the first extraction of \alpha_s(M_Z) from HERA data alone.
fields
hep-ph 1years
2026 1verdicts
UNVERDICTED 1representative citing papers
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A generalised-$k_t$ jet algorithm for Deep Inelastic Scattering
The authors define a generalised-k_t jet algorithm family for DIS in the Breit frame, extending the prior p=0 case, and test its use for struck-quark jet identification and non-perturbative effects.