CTEQ-TEA group updates: Photon PDF and Impact from heavy flavors in the CT18 global analysis

2021/10/21 by Marco Guzzi, Keping Xie, Guzzi, Marco +11
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.2110.11495

6 pages, 4 figures, EPS-HEP2021 Conference Proceedings. Contribution to the European Physical Society Conference on High Energy Physics 2021

arxiv created 2021/10/21 · arxiv updated 2021/10/25

Abstract

We discuss recent CTEQ-TEA group activities after the publication of the CT18 global analysis of parton distribution functions (PDFs) in the proton. In particular, we discuss a new calculation for the photon content in the proton, termed as CT18lux and CT18qed PDFs, and the impact of novel charm- and bottom-quark production cross section measurements at HERA on the CT18 global analysis.

Related

• Impact of heavy-quark production measurements in the CT18 global QCD analysis of PDFs
• The photon content of the proton in the CT18 global analysis
• New results in the CTEQ-TEA global analysis of parton distributions in the nucleon
• NNLO constraints on proton PDFs from the SeaQuest and STAR experiments and other developments in the CTEQ-TEA global analysis
• New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC