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Impact of lattice gluon dataset on CTEQ-TEA global PDFs
Alim Ablat, Sayipjamal Dulat, Tie-Jiun Hou +3
We investigate the impact of the latest gluon parton results from lattice QCD on the global parton distribution function (PDF) analysis within the CTEQ-TEA framework. The dependenc…
The impact of LHC precision measurements of inclusive jet and dijet production on the CTEQ-TEA global PDF fit
Alim Ablat, Sayipjamal Dulat, Tie-Jiun Hou +5
In this study, we investigate the impact of new LHC inclusive jet and dijet measurements on parton distribution functions (PDFs) that describe the proton structure, with a particul…
Progress in top-quark pair production cross section calculations and impact on parton distribution functions of the proton
Alim Ablat, Sayipjamal Dulat, Marco Guzzi +6
We discuss the impact of eligible top-quark pair production differential cross-section measurements at the LHC with a collision energy of 13 TeV on the parton distribution function…
The upcoming CTEQ-TEA parton distributions in a nutshell
A. Ablat, A. Courtoy, S. Dulat +8
We review recent studies by the CTEQ-TEA group toward the development of a new generation of precision parton distribution functions in the nucleon for advanced studies at the high…
New results in the CTEQ-TEA global analysis of parton distributions in the nucleon
A. Ablat, A. Courtoy, S. Dulat +11
This report summarizes the latest developments in the CTEQ-TEA global analysis of parton distribution functions (PDFs) in the nucleon. The focus is on recent NNLO fits to high-prec…
A generalized statistical model for fits to parton distributions
Mengshi Yan, Tie-Jiun Hou, Zhao Li +2
Parton distribution functions (PDFs) form an essential part of particle physics calculations. Currently, the most precise predictions for these non-perturbative functions are gener…
Exploring the impact of high-precision top-quark pair production data on the structure of the proton at the LHC
Alim Ablat, Marco Guzzi, Keping Xie +4
The impact of recent LHC top-quark pair production single differential cross section measurements at 13 TeV collision energy on the structure of the proton is explored. In particul…
Precision studies of the post-CT18 LHC Drell-Yan data in the CTEQ-TEA global analysis
Ibrahim Sitiwaldi, Keping Xie, Alim Ablat +3
In this study, we examine closely the impact of the post-CT18 LHC Drell-Yan data on parton distribution functions (PDFs) in the general CTEQ-TEA global analysis framework. We compa…
Impact of Lattice Strangeness Asymmetry Data in the CTEQ-TEA Global Analysis
Tie-Jiun Hou, Huey-Wen Lin, Mengshi Yan +1
We study the impact of lattice data on the determination of the strangeness asymmetry distribution in the general CTEQ-TEA global analysis of par…
Heavy-flavor impact on CTEQ-TEA global QCD analyses
Marco Guzzi, Alim Ablat, Sayipjamal Dulat +5
We discuss heavy-flavor production at hadron colliders in recent global QCD analyses to determine parton distribution functions (PDFs) in the proton. We discuss heavy-flavor treatm…
Boost Asymmetry of the diboson productions in pp collisions
Siqi Yang, Mingzhe Xie, Yao Fu +5
We propose the boost asymmetry of the diboson productions in pp collisions as a new experimental observable, which can provide unique information on the proton structure. The boost…
Connected and Disconnected Sea Partons from CT18 Parametrization of PDFs
Tie-Jiun Hou, Mengshi Yan, Jian Liang +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 an altern…
A CT18 global PDF fit at the leading order in QCD
Mengshi Yan, Tie-Jiun Hou, Pavel Nadolsky +1
In this paper, we present a CT18 PDFs fitted with Leading-Order QCD perturbation theory. The CT18 LO PDFs is obtained within the general CT18 framework, along with two additional t…
Impact of lattice data in the CTEQ-TEA global analysis
Tie-Jiun Hou, Huey-Wen Lin, Mengshi Yan +1
We study the impact of the lattice data on the determination of the strangeness asymmetry distribution in the general CTEQ-TEA global analysis of…
The PDF4LHC21 combination of global PDF fits for the LHC Run III
Richard D. Ball, Jon Butterworth, Amanda M. Cooper-Sarkar +19
A precise knowledge of the quark and gluon structure of the proton, encoded by the parton distribution functions (PDFs), is of paramount importance for the interpretation of high-e…
Snowmass 2021 White Paper: Electron Ion Collider for High Energy Physics
R. Abdul Khalek, U. D'Alesio, M. Arratia +105
Electron Ion Collider (EIC) is a particle accelerator facility planned for construction at Brookhaven National Laboratory on Long Island, New York by the United States Department o…
Factorization of the forward-backward charge asymmetry and measurements of the weak mixing angle and proton structure at hadron colliders
Siqi Yang, Yao Fu, Minghui Liu +3
The forward-backward charge asymmetry (AFB) at hadron colliders is sensitive to both the electroweak (EW) symmetry breaking represented by the effective weak mixing angle, and the…
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…