Abstract
For the first time, differential inclusive-jet cross sections have been measured in neutral current deep inelastic ep scattering using the anti-k(T) and SIScone algorithms. The measurements were made for boson virtualities Q(2) > 125 GeV2 with the ZEUS detector at HERA using an integrated luminosity of 82 pb(-1) and the jets were identified in the Breit frame. The performance and suitability of the jet algorithms for their use in hadron-like reactions were investigated by comparing the measurements to those performed with the k(T) algorithm. Next-to-leading-order QCD calculations give a good description of the measurements. Measurements of the ratios of cross sections using different jet algorithms are also presented; the measured ratios are well described by calculations including up to O(alpha(3)(s)) terms. Values of alpha(s)(M-z) were extracted from the data; the results are compatible with and have similar precision to the value extracted from the kT analysis
Original language | English |
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Pages (from-to) | 127-137 |
Number of pages | 11 |
Journal | Physics Letters B |
Volume | 691 |
Issue number | 3 |
DOIs | |
Publication status | Published - Jul 2010 |
Bibliographical note
ZEUS CollaborationKeywords
- Hadron–electron collisions
- Deep inelastic scattering
- Jet algorithms
- Renormalization
- QCD