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High Energy Physics - Phenomenology

arXiv:1810.00264 (hep-ph)
[Submitted on 29 Sep 2018]

Title:CTEQ-TEA parton distribution functions with intrinsic charm

Authors:Marco Guzzi, Tie-Jiun Hou, Sayipjamal Dulat, Jun Gao, Joey Huston, Pavel Nadolsky, Carl Schmidt, Jan Winter, Keping Xie, C.-P. Yuan
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Abstract:The possibility of a (sizable) nonperturbative contribution to the charm parton distribution function (PDF) in a nucleon is investigated together with theoretical issues arising in its interpretation. Results from the global PDF analysis are presented. The separation of the universal component of the nonperturbative charm from the rest of the radiative contributions is discussed and the potential impact of a nonperturbative charm PDF on LHC scattering processes is illustrated. An estimate of nonperturbative charm magnitude in the CT14 and CT14HERA2 global QCD analyses at the next-to-next-to leading order (NNLO) in the QCD coupling strength is given by including the latest experimental data from HERA and the Large Hadron Collider (LHC). A comparison between different models of intrinsic charm is shown and prospects for standard candle observables at the LHC are illustrated.
Comments: 7 pages, 2 figures. Conference Proceedings of CIPANP2018, 13th Conference on the Intersections of Particle and Nuclear Physics, May 29 - June 3, 2018 Palm Springs, CA. Based on arXiv: 1707.00657, published in JHEP 1802 (2018) 059
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:1810.00264 [hep-ph]
  (or arXiv:1810.00264v1 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1810.00264
Related DOI: https://doi.org/10.1051/epjconf/201819200003

Submission history

From: Marco Guzzi [view email]
[v1] Sat, 29 Sep 2018 20:54:24 UTC (19 KB)
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