2021
DOI: 10.48550/arxiv.2108.05786
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CJ15 global PDF analysis with new electroweak data from the STAR and SeaQuest experiments

Sanghwa Park,
Alberto Accardi,
Xiaoxian Jing
et al.

Abstract: We present updates to a recent CTEQ-Jefferson Lab (CJ) global analysis of parton distribution functions with a new set of electroweak data that provide unique access to quark flavor separation in the proton. In particular, recent W and Z boson measurements from the STAR experiment at RHIC put additional constraints on light quarks and antiquarks near the valence regime. The new measurement of the Drell-Yan lepton pair production ratio in p + p and p + d collisions by the SeaQuest experiment at Fermilab extends… Show more

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Cited by 2 publications
(2 citation statements)
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“…There are several groups providing regular updates of PDFs via global fits, see refs. [12][13][14][15][16][17][18][19] for recent results on PDF determinations. The difference between those PDF sets is mainly due to the choice of the experimental data sets, the theoretical calculations used, and the parametrization form of PDFs.…”
Section: Introductionmentioning
confidence: 99%
“…There are several groups providing regular updates of PDFs via global fits, see refs. [12][13][14][15][16][17][18][19] for recent results on PDF determinations. The difference between those PDF sets is mainly due to the choice of the experimental data sets, the theoretical calculations used, and the parametrization form of PDFs.…”
Section: Introductionmentioning
confidence: 99%
“…There are several groups providing regular updates of PDFs via global fits, see Refs. [12][13][14][15][16][17][18][19] for recent results on PDF determinations. The difference between those PDF sets is mainly due to the choice of the experimental data sets, the theoretical calculations used, and the parametrization form of PDFs.…”
mentioning
confidence: 99%