485 citations · 1.1k across the 23 of their papers we have counts for
29 papers
Parton distribution functions and strong coupling constant: MSHT
T. Cridge, L. A. Harland-Lang, M. Reader +1
We present an overview of the MSHT family of global PDF fits. We describe the underlying methodology, including parameterisation choice, theoretical inputs and datasets included in…
The impact of inclusive electron ion collider data on the strong coupling determination in a global PDF fit
L. A. Harland-Lang, T. Cridge, P. Newman +2
We present a study of the impact of data from the upcoming Electron Ion Collider (EIC) on the determination of the strong coupling within the context of the global MSHT fitting fra…
MSHT Approximate N3LO PDFs: Updates and Consequences for Phenomenology
T. Cridge, L. A. Harland-Lang, R. S. Thorne
We present updates to the MSHT approximate N3LO PDFs focusing upon recent developments, examining the impacts of newly determined splitting function and transition matrix element c…
A reassessment of the role of high data on the MSHT global PDF fit
L. A. Harland-Lang, T. Cridge, M. Reader +1
We present updates within the MSHT global PDF fit that focus on the high region, and on improving our understanding of the interplay of various theoretical contributions and ex…
QED-enhanced PDF implications for the Higgs sector
Amanda M. Cooper-Sarkar, Thomas Cridge, T. J. Hobbs +4
In this work, we examine the implications of electroweak corrections beyond leading order for processes of special interest in the Higgs sector. We especially explore the role of t…
Combination of aNLO PDFs and implications for Higgs production cross-sections at the LHC
Thomas Cridge, Lucian A. Harland-Lang, Jamie McGowan +14
We discuss how the two existing approximate NLO (aNLO) sets of parton distributions (PDFs) from the MSHT20 and NNPDF4.0 series can be combined for LHC phenomenology, both i…
Closure Testing the MSHT PDFs and a First Direct Comparison to the Neural Net Approach
L. A. Harland-Lang, R. S. Thorne, T. Cridge
We present a brief overview of the first global closure test of the fixed parameterisation (MSHT) approach to PDF fitting. We find that the default MSHT20 parameterisation can repr…
MSHT Updates 2024
R. S. Thorne, T. Cridge, L. Harland-Lang
We present various recent updates related to the MSHT20 PDF sets, and particularly to the MSHT20 approximate NLO (aNLO) PDFs. These include an investigation of including ei…
A Stress Test of Global PDF Fits: Closure Testing the MSHT PDFs and a First Direct Comparison to the Neural Net Approach
L. A. Harland-Lang, T. Cridge, R. S. Thorne
We present a first global closure test of the fixed parameterisation (MSHT) approach to PDF fitting. We find that the default MSHT20 parameterisation can reproduce the features of…
A Benchmarking of QCD Evolution at Approximate
A. Cooper-Sarkar, T. Cridge, F. Giuli +6
We present a detailed benchmarking of different treatments of the QCD evolution of unpolarized PDFs at approximate () order in the QCD coupling. Namely, the impleme…
Les Houches 2023: Physics at TeV Colliders: Standard Model Working Group Report
J. Andersen, B. Assi, K. Asteriadis +81
This report presents a short summary of the activities of the "Standard Model" working group for the "Physics at TeV Colliders" workshop (Les Houches, France, 12-30 June, 2023).
A first determination of the strong coupling at approximate NLO order in a global PDF fit
T. Cridge, L. A. Harland-Lang, R. S. Thorne
We present the first determination of the value of the strong coupling via a simultaneous global fit of the proton parton distribution functions (PDFs) at approximate NLO (aN…
The Impact of LHC Jet and Data at up to Approximate NLO Order in the MSHT Global PDF Fit
T. Cridge, L. A. Harland-Lang, R. S. Thorne
We present an analysis of two key sets of data constraining the high gluon at up to approximate NLO in QCD within the MSHT global PDF fitting framework. We begin with LHC…
Combining QED and Approximate NLO QCD Corrections in a Global PDF Fit: MSHT20qed_an3lo PDFs
T. Cridge, L. A. Harland-Lang, R. S. Thorne
We present the MSHT20qed_an3lo parton distribution functions (PDFs). These result from the first global PDF analysis to combine QED and approximate NLO (aNLO) QCD corre…
Impact of Inclusive Electron Ion Collider Data on Collinear Parton Distributions
Néstor Armesto, Thomas Cridge, Francesco Giuli +5
A study is presented of the impact of simulated inclusive Electron Ion Collider Deep Inelastic Scattering data on the determination of the proton and nuclear parton distribution fu…
Quantifying the interplay of experimental constraints in analyses of parton distributions
Xiaoxian Jing, Amanda Cooper-Sarkar, Aurore Courtoy +9
Parton distribution functions (PDFs) play a central role in calculations for the Large Hadron Collider (LHC). To gain a deeper understanding of the emergence and interplay of const…
Constraining the top-quark mass within the global MSHT PDF fit
Thomas Cridge, Matthew A. Lim
We examine the ability of experimental measurements of top-quark pair production to constrain both the top-quark mass and the strong coupling within the global MSHT parton distribu…
Approximate NLO Parton Distribution Functions with Theoretical Uncertainties: MSHT20aNLO PDFs
J. McGowan, T. Cridge, L. A. Harland-Lang +1
We present the first global analysis of parton distribution functions (PDFs) at approximate NLO in the strong coupling constant , extending beyond the current highest…
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 whitepaper: Proton structure at the precision frontier
S. Amoroso, A. Apyan, N. Armesto +54
An overwhelming number of theoretical predictions for hadron colliders require parton distribution functions (PDFs), which are an important ingredient of theory infrastructure for…
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…
The strong coupling constant: State of the art and the decade ahead
D. d'Enterria, S. Kluth, G. Zanderighi +55
Theoretical predictions for particle production cross sections and decays at colliders rely heavily on perturbative Quantum Chromodynamics (QCD) calculations, expressed as an expan…
QED Parton Distribution Functions in the MSHT20 Fit
T. Cridge, L. A. Harland-Lang, A. D. Martin +1
We present the MSHT20qed set of parton distribution functions (PDFs). These are obtained from the MSHT20 global analysis via a refit including QED corrections to the DGLAP evolutio…
PDF4LHC21: Update on the benchmarking of the CT, MSHT and NNPDF global PDF fits
Thomas Cridge
There have been recent updates to the three global PDF fits (CT, MSHT and NNPDF), all adding large amounts of data from the LHC, and this has resulted in significant changes to the…