A first unbiased global determination of polarized PDFs and their uncertainties
By Emanuele R.Nocera, Richard D.Ball, S. Forte, G. Ridolfi, Juan Rojo. 2014
339 citations recorded by the source corpus.
We present a first global determination of spin-dependent parton distribution functions (PDFs) and their uncertainties using the NNPDF methodology: NNPDFpol1.1. Longitudinally polarized deepinelastic scattering data, already used for the previous NNPDFpol1.0 PDF set, are supplemented with the most recent polarized hadron collider data for inclusive jet and W boson production from the STAR and PHENIX experiments at RHIC, and with open-charm production data from the COMPASS experiment, thereby allowing for a separate determination of the polarized quark and anti-quark PDFs, and an improved determination of the medium- and large-x polarized gluon PDF. We study the phenomenological implications of the NNPDFpol1.1 set, and we provide predictions for the longitudinal double-spin asymmetry for semi-inclusive pion production at RHIC.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/40f00caf835c8b7bfb91fe6348c39278afb3cde8
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In Nuclear and High Energy Physics
- Atlas Collaboration
- M. Constantinou
- Juan Rojo
- Jun Gao
- Krzysztof Cichy
- Cms Collaboration
- L. Harland–Lang
- Fabio Maltoni
Citations in the corpus
- Parton distributions and lattice-QCD calculations: Toward 3D structure (2020, result): “1 (Nocera et al., 2014) and JAM17 (Ethier et al., 2017).”
- A Guide to Light-Cone PDFs from Lattice QCD: An Overview of Approaches, Techniques, and Results (2018, background): “The lattice data have similar behavior as the phenomenological estimates [111, 223, 226].”
- The Structure of the Proton in the LHC Precision Era (2017, background): “In addition to unpolarized parton distributions, the flexibility of the LHAPDF6 framework makes it suitable to release other types of nonperturbative QCD objects, and indeed polarized PDFs [66], nuclear PDFs [70], and even fragmentation functions [455], are also available.”
- A Monte Carlo global analysis of the Standard Model Effective Field Theory: the top quark sector (2019, methodology): “By exploiting these conceptual similarities, in this work we develop a novel strategy for global SMEFT analyses inspired by the NNPDF framework, successfully applied to the determination of the parton distributions of the proton [26–36] and of hadron fragmentation functions [37, 38].”