Erratum to: NNLO QCD corrections to jet production in deep inelastic scattering

Currie, James; Gehrmann, Thomas; Huss, A.; Niehues, J.

doi:10.1007/jhep12(2020)042

Cited by 7 publications

(4 citation statements)

References 6 publications

(14 reference statements)

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“…The ZEUS data are very well compatible with the corresponding measurement from the H1 collaboration [4], which is also shown in the figure. Both measurements show similar trends relative to the NNLO QCD predictions, as calculated by the NNLOJet program [5]. Within the combined uncertainty the NNLO QCD predictions agree well with the measured cross sections.…”

Section: Cross Sectionssupporting

confidence: 74%

Measurement and QCD analysis of inclusive jet production in deep inelastic scattering at ZEUS

Lorkowski¹

2022

Proceedings of 41st International Conference on High Energy Physics — PoS(ICHEP2022)

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The measurement of jet production in 𝑒 ± 𝑝 scattering at HERA is an important input for the understanding of QCD and a well established tool to test perturbative QCD predictions. Jet cross sections can be used to precisely determine the strong coupling constant and its correlation to the gluon distribution function of the proton. A new measurement of inclusive jet cross sections in neutral current deep inelastic scattering using the ZEUS detector at the HERA collider is obtained. The data were taken at HERA 2 at a center of mass energy of 318 GeV and correspond to an integrated luminosity of 347 pb −1 . Massless jets, reconstructed using the 𝑘 ⊥ -algorithm in the Breit reference frame, are measured as a function of the squared momentum transfer 𝑄 2 and the transverse momentum of the jets in the Breit frame 𝑝 ⊥,Breit . The measured jet cross sections are compared to previous measurements as well as NNLO QCD theory predictions. The measurement is used in a QCD analysis at NNLO accuracy to perform a simultaneous determination of parton distribution functions of the proton and the strong coupling constant, resulting in a value of 𝛼 s (𝑀 2 Z ) = 0.1138 ± 0.0014 (exp/fit) +0.0004 −0.0008 (model/param.) +0.0008 −0.0007 (scale). A significantly improved accuracy is observed compared to similar measurements of the strong coupling constant.

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Section: Cross Sectionssupporting

confidence: 74%

Measurement and QCD analysis of inclusive jet production in deep inelastic scattering at ZEUS

Lorkowski¹

2022

Proceedings of 41st International Conference on High Energy Physics — PoS(ICHEP2022)

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“…The z-integration of the resulting expressions recovers the known real-virtual initialfinal master integrals [45] and enabled us to identify an error in their numerical implementation for jet production in deep-inelastic scattering [51].…”

Section: Jhep04(2022)031mentioning

confidence: 90%

Photon fragmentation in the antenna subtraction formalism

Gehrmann

Schürmann

2022

J. High Energ. Phys.

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The theoretical description of photon production at particle colliders combines direct photon radiation and fragmentation processes, which can not be separated from each other for definitions of photon isolation used in experimental measurements. The theoretical description of these processes must account for collinear parton-photon configurations, retaining the dependence on the photon momentum fraction, and includes the parton-to-photon fragmentation functions. We extend the antenna subtraction method to include photon fragmentation processes up to next-to-next-to-leading order (NNLO) in QCD. Collinear photon radiation is handled using newly introduced fragmentation antenna functions and associated phase space mappings. We derive the integrated forms of the fragmentation antenna functions and describe their interplay with the mass factorisation of the photon fragmentation functions. The construction principles of antenna subtraction terms up to NNLO for identified photons are outlined, thereby enabling the application of the method to different photon production processes at colliders.

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“…All these processes are essential to pin down the accuracy of the parton distribution functions in the region of a clear twist-2 dominance [236], also accounting for jet production cross sections in pp → Z+jet at NNLO [237,238] and in ep two-jet production [239].…”

Section: Precision Goals In Testing the Standard Modelmentioning

confidence: 99%