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CTEQ-TEA group updates: Photon PDF and Impact from heavy flavors in the CT18 global analysis
Marco Guzzi, Keping Xie, Tie-Jiun Hou +4
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…
Connected and Disconnected Sea Partons from CT18 Parametrization of PDFs
Tie-Jiun Hou, Jian Liang, Keh-Fei Liu +2
The separation of the connected and disconnected sea partons, which were uncovered in the Euclidean path-integral formulation of the hadronic tensor, is accommodated with the CT18…
NNLO constraints on proton PDFs from the SeaQuest and STAR experiments and other developments in the CTEQ-TEA global analysis
Marco Guzzi, T. J. Hobbs, Tie-Jiun Hou +11
We review progress in the global QCD analysis by the CTEQ-TEA group since the publication of CT18 parton distribution functions (PDFs) in the proton. Specifically, we discuss compa…
Reduction of the electroweak correlation in the PDF updating by using the forward-backward asymmetry of Drell-Yan process
Siqi Yang, Yao Fu, Minghui Liu +6
We propose a new observable for the measurement of the forward-backward asymmetry in Drell-Yan lepton production. At hadron colliders, the distribution is sensi…
The photon content of the proton in the CT18 global analysis
Keping Xie, T. J. Hobbs, Tie-Jiun Hou +3
Recently, two photon PDF sets based on implementations of the LUX ansatz into the CT18 global analysis were released. In CT18lux, the photon PDF is calculated directly using the LU…
The photon PDF within the CT18 global analysis
Keping Xie, T. J. Hobbs, Tie-Jiun Hou +3
Building upon the most recent CT18 global fit, we present a new calculation of the photon content of the proton based on an application of the LUX formalism. In this work, we explo…
Determining the helicity structure of the nucleon at the Electron Ion Collider in China
Daniele Paolo Anderle, Tie-Jiun Hou, Hongxi Xing +3
Understanding how sea quarks behave inside a nucleon is one of the most important physics goals of the proposed Electron-Ion Collider in China (EicC), which is designed to have 3.5…
Science Requirements and Detector Concepts for the Electron-Ion Collider: EIC Yellow Report
R. Abdul Khalek, A. Accardi, J. Adam +410
This report describes the physics case, the resulting detector requirements, and the evolving detector concepts for the experimental program at the Electron-Ion Collider (EIC). The…
Electron-Ion Collider in China
Daniele P. Anderle, Valerio Bertone, Xu Cao +99
Lepton scattering is an established ideal tool for studying inner structure of small particles such as nucleons as well as nuclei. As a future high energy nuclear physics project,…