Open-source QCD analysis of nuclear parton distribution functions at NLO and NNLO

Walt, Marina; Helenius, Ilkka; Vogelsang, Werner

doi:10.1103/PhysRevD.100.096015

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Walt, M., Helenius, I., & Vogelsang, W. (2019). Open-source QCD analysis of nuclear parton distribution functions at NLO and NNLO. Physical Review D, 100(9), Article 096015. https://doi.org/10.1103/PhysRevD.100.096015

Julkaistu sarjassa

Physical Review D

Tekijät

Walt, Marina |

Helenius, Ilkka |

Vogelsang, Werner

Päivämäärä

2019

Tekijänoikeudet

We present new sets of nuclear parton distribution functions (nPDFs) at next-to-leading order and next-to-next-to-leading order. Our analyses are based on deeply inelastic scattering data with charged-lepton and neutrino beams on nuclear targets. In addition, a set of proton baseline PDFs is fitted within the same framework with the same theoretical assumptions. The results of this global QCD analysis are compared to existing nPDF sets and to the fitted cross sections. Also, the uncertainties resulting from the limited constraining power of the included experimental data are presented. The published work is based on an open-source tool, xfitter, which has been modified to be applicable also for a nuclear PDF analysis. The required extensions of the code are discussed as well.

Julkaisija

American Physical Society

ISSN Hae Julkaisufoorumista

2470-0010

Rahoittaja(t)

Suomen Akatemia

Rahoitusohjelmat(t)

Akatemiatutkija, SA

Lisätietoja rahoituksesta

This work was supported in part by the Bundesministerium für Bildung und Forschung (BMBF) Grant No. 5P18VTCA1, Carl Zeiss Foundation and by the Academy of Finland, Project No. 308301.

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