Inclusive-jet cross sections in NC DIS at HERA and a comparison of the kT, anti-kT and SIScone jet algorithms
Collaboration
27 pages
Published in:
- Phys.Lett.B 691 (2010) 127-137
e-Print:
- 1003.2923 [hep-ex]
Report number:
- DESY-10-034
Experiments:
View in:
Citations per year
Abstract: (Elsevier)
For the first time, differential inclusive-jet cross sections have been measured in neutral current deep inelastic ep scattering using the anti- kT and SIScone algorithms. The measurements were made for boson virtualities Q2>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 kT 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(αs3) terms. Values of αs(MZ) were extracted from the data; the results are compatible with and have similar precision to the value extracted from the kT analysis.Note:
- 27 pages, 6 figures, 4 tables
- Hadron-electron collisions
- Deep inelastic scattering
- Jet algorithms
- Renormalization
- QCD
- Hadron–electron collisions
- cross section: ratio
- deep inelastic scattering: neutral current
- electron p: deep inelastic scattering
- higher-order: 1
References(75)
Figures(12)