Publications by Richard Ball

A determination of αs(mZ) at aN3LOQCD⊗NLOQED accuracy from a global PDF analysis DOI
Richard D. Ball, Andrea Barontini, Juan Cruz-Martinez, Stefano Forte, Felix Hekhorn, Emanuele R. Nocera, Juan Rojo and Roy Stegeman, The European Physical Journal C, 85, 9, p. 1-17 (2025)
Combination of aN3LO PDFs and implications for Higgs production cross-sections at the LHC DOI
MSHT Collaboration, NNPDF Collaboration, Thomas Cridge, Lucian A. Harland-Lang, Jamie McGowan, Robert S. Thorne, Richard D. Ball, Alessandro Candido, Stefano Carrazza, Juan Cruz-Martinez, Luigi Del Debbio et al., Journal of Physics G: Nuclear and Particle Physics, 52, 6, p. 1-27 (2025)
The path to N3LO parton distributions DOI
NNPDF Collaboration, Andrea Barontini, Alessandro Candido, Stefano Carrazza, Juan Cruz-Martinez, Luigi Del Debbio, Stefano Forte, Tommaso Giani, Felix Hekhorn, Zahari Kassabov et al., The European Physical Journal C, 84, 7, p. 1-59 (2024)
Photons in the proton: implications for the LHC DOI
NNPDF Collaboration, Andrea Barontini, Alessandro Candido, Stefano Carrazza, Juan Cruz-Martinez, Luigi Del Debbio, Stefano Forte, Tommaso Giani, Felix Hekhorn, Zahari Kassabov et al., The European Physical Journal C, 84, 5, p. 1-29 (2024)
Determination of the theory uncertainties from missing higher orders on NNLO parton distributions with percent accuracy DOI
NNPDF Collaboration, Andrea Barontini, Alessandro Candido, Stefano Carrazza, Juan Cruz-Martinez, Luigi Del Debbio, Stefano Forte, Tommaso Giani, Felix Hekhorn, Zahari Kassabov et al., The European Physical Journal C, 84, 5, p. 1-22 (2024)
Intrinsic charm quark valence distribution of the proton DOI
NNPDF Collaboration, Richard D. Ball, Alessandro Candido, Juan Cruz-Martinez, Stefano Forte, Tommaso Giani, Felix Hekhorn, Giacomo Magni, Emanuele R. Nocera, Juan Rojo et al., Physical Review D, 109, 9, p. 1-7 (2024)
Snowmass 2021 Whitepaper: Proton Structure at the Precision Frontier DOI
S. Amoroso, A. Apyan, N. Armesto, R. D. Ball, V. Bertone, C. Bissolotti, J. Blümlein, R. Boughezal, G. Bozzi, D. Britzger et al., Acta Physica Polonica B, 53, 12, p. 1-164 (2023)
Parton distributions and new physics searches: the Drell–Yan forward–backward asymmetry as a case study DOI
Richard D. Ball, Alessandro Candido, Stefano Forte, Felix Hekhorn, Emanuele R. Nocera, Juan Rojo and Christopher Schwan, The European Physical Journal C, 82, 12, p. 1-25 (2022)
Evidence for intrinsic charm quarks in the proton DOI
NNPDF Collaboration, Richard D. Ball, Alessandro Candido, Juan Cruz-Martinez, Stefano Forte, Tommaso Giani, Felix Hekhorn, Kirill Kudashkin, Giacomo Magni and Juan Rojo, Nature, 608, 7923, p. 483-487 (2022)
Next generation proton PDFs with deuteron and nuclear uncertainties DOI
Rosalyn L. Pearson, Richard D. Ball and Emanuele R. Nocera, p. 1-7 (2022)
The PDF4LHC21 combination of global PDF fits for the LHC Run III DOI
The PDF4LHC Working Group, Jon Butterworth, Amanda Cooper-Sarkar, Aurore Courtoy, Thomas Cridge, Albert De Roeck, Joel Feltesse, Stefano Forte, Francesco Giuli et al., Journal of Physics G: Nuclear and Particle Physics, 49, 8, p. 1-94 (2022)
The path to proton structure at 1% accuracy DOI
NNPDF Collaboration, Stefano Carrazza, Juan Cruz-Martinez, Luigi Del Debbio, Stefano Forte, Tommaso Giani, Shayan Iranipour, Zahari Kassabov, José I. Latorre, Emanuele R. Nocera et al., The European Physical Journal C, 82, 5, p. 1-119 (2022)
Correlation and combination of sets of parton distributions DOI
Richard D. Ball, Stefano Forte and Roy Stegeman, The European Physical Journal C, 81, 11, p. 1-18 (2021)
An open-source machine learning framework for global analyses of parton distributions DOI
NNPDF Collaboration, Stefano Carrazza, Juan Cruz-Martinez, Luigi Del Debbio, Stefano Forte, Tommaso Giani, Shayan Iranipour, Zahari Kassabov, José I. Latorre, Emanuele R. Nocera et al., The European Physical Journal C, 81, 10, p. 1-12 (2021)
Correlation of theoretical uncertainties in PDF fits and theoretical uncertainties in predictions DOI
Richard D. Ball and Rosalyn L. Pearson, The European Physical Journal C, 81, 9, p. 1-27 (2021)
Deuteron Uncertainties in the Determination of Proton PDFs DOI
Richard D. Ball, Emanuele R. Nocera and Rosalyn L. Pearson, The European Physical Journal C, 81, 1, p. 1-12 (2021)
Parton Distributions with Theory Uncertainties DOI
The NNPDF Collaboration, Rabah Abdul Khalek, Richard D. Ball, Stefano Carrazza, Stefano Forte, Tommaso Giani, Zahari Kassabov, Rosalyn L. Pearson, Emanuele R. Nocera, Juan Rojo et al., The European Physical Journal C, C79, 11 (2019)
A First Determination of Parton Distributions with Theoretical Uncertainties DOI
The NNPDF Collaboration, Rabah Abdul Khalek, Richard D. Ball, Stefano Carrazza, Stefano Forte, Tommaso Giani, Zahari Kassabov, Emanuele R. Nocera, Rosalyn L. Pearson, Juan Rojo et al., The European Physical Journal C, 79, 838 (2019)
Uncertainties due to Nuclear Data in Proton PDF Fits DOI
Rosalyn Pearson, Richard D. Ball and Emanuele Roberto Nocera, p. 1-5 (2019)
Nuclear Uncertainties in the Determination of Proton PDFs DOI
Richard D. Ball, Emanuele R. Nocera and Rosalyn L. Pearson, The European Physical Journal C, C79, 3 (2019)
Precision determination of the strong coupling constant within a global PDF analysis DOI
Luigi Del Debbio and Richard Ball, The European Physical Journal C (2018)
Parton distributions with small-x resummation DOI
Richard D. Ball, Valerio Bertone, Marco Bonvini, Simone Marzani, Juan Rojo and Luca Rottoli, The European Physical Journal C, 78, 4 (2018)
Spin Physics DOI
Richard D. Ball and Alaka K Deshpande, From My Vast Repertoire ... Guido Altarelli's Legacy, World Scientific (2018)
Charm Production: Pole Mass or Running Mass? DOI
Richard D. Ball, AIP Conference Proceedings, 819, 1 (2017)
Parton distributions from high-precision collider data DOI
The NNPDF Collaboration, Richard D. Ball, Valerio Bertone, Stefano Carrazza, Luigi Del Debbio, Stefano Forte, Patrick Groth-Merrild, Alberto Guffanti, Nathan P. Hartland, Zahari Kassabov, José I. Latorre et al., The European Physical Journal C, 77, 10 (2017)
The asymptotic behaviour of parton distributions at small and large $x$ DOI
Richard D. Ball, Emanuele R. Nocera and Juan Rojo, The European Physical Journal C (2016)
Intrinsic charm in a matched general-mass scheme DOI
Richard D. Ball, Valerio Bertone, Marco Bonvini, Stefano Forte, Patrick Groth Merrild, Juan Rojo and Luca Rottoli, Physics Letters B (2016)
A Determination of the Charm Content of the Proton DOI
The NNPDF Collaboration, Richard D. Ball, Valerio Bertone, Marco Bonvini, Stefano Carrazza, Stefano Forte, Alberto Guffanti, Nathan P. Hartland, Juan Rojo and Luca Rottoli, The European Physical Journal C, C76, 11 (2016)
Towards parton distributions with fitted charm DOI
P. Groth-Merrild, L. Rottoli, R. D. Ball, V. Bertone, S. Carrazza, S. Forte, P. Groth-Merrild, A. Guffanti, N. P. Hartland, Z. Kassabov et al., 18th Montpellier International Conference on Quantum Chromodynamics (QCD 15), 270-272, p. 23-26 (2016)
Charm in Deep-Inelastic Scattering DOI
Richard D. Ball, Marco Bonvini and Luca Rottoli, Journal of High Energy Physics, 11 (2015)
Parton distributions with threshold resummation DOI
Marco Bonvini, Simone Marzani, Juan Rojo, Luca Rottoli, Maria Ubiali, Richard D. Ball, Valerio Bertone, Stefano Carrazza and Nathan P. Hartland, Journal of High Energy Physics (2015)
Parton distributions for the LHC run II DOI
NNPDF Collaboration, Richard D. Ball, Valerio Bertone, Stefano Carrazza, Christopher S. Deans, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Nathan P. Hartland, Jose I. Latorre, Juan Rojo et al., Journal of High Energy Physics, 2015, 4 (2015)
A first unbiased global determination of polarized PDFs and their uncertainties DOI
NNPDF Collaboration, Nuclear physics b, 887, p. 276–308 (2014)
Updated Higgs cross section at approximate N3LO DOI
Marco Bonvini, Richard D. Ball, Stefano Forte, Simone Marzani and Giovanni Ridolfi, Journal of Physics G: Nuclear and Particle Physics, 41, 9 (2014)
Polarized parton distributions at an electron-ion collider DOI
Richard D. Ball, Stefano Forte, Alberto Guffanti, Emanuele R. Nocera, Giovanni Ridolfi and Juan Rojo, Physics Letters B, 728, p. 524-531 (2014)
Parton distributions with QED corrections DOI
Richard D. Ball, Valerio Bertone, Stefano Carrazza, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Nathan P. Hartland and Juan Rojo, Nuclear physics b, 877, 2, p. 290-320 (2013)
Higgs production in gluon fusion beyond NNLO DOI
Richard D. Ball, Marco Bonvini, Stefano Forte, Simone Marzani and Giovanni Ridolfi, Nuclear physics b, 874, 3, p. 746-772 (2013)
Unbiased determination of polarized parton distributions and their uncertainties NNPDF Collaboration DOI
Richard D. Ball, Stefano Forte, Alberto Guffanti, Emanuele R. Nocera, Giovanni Ridolfi and Juan Rojo, Nuclear physics b, 874, 1, p. 36-84 (2013)
Theoretical issues in PDF determination and associated uncertainties NNPDF Collaboration DOI
Richard D. Ball, Valerio Bertone, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Juan Rojo and Maria Ubiali, Physics Letters B, 723, 4-5, p. 330-339 (2013)
Unbiased determination of polarized parton distributions and their uncertainties
The NNPDF Collaboration, Richard D. Ball, Stefano Forte, Alberto Guffanti, Emanuele R. Nocera, Giovanni Ridolfi and Juan Rojo, Nuclear physics b (2013)
Parton distribution benchmarking with LHC data DOI
Richard D. Ball, Stefano Carrazza, Luigi Del Debbio, Stefano Forte, Jun Gao, Nathan Hartland, Joey Huston, Pavel Nadolsky, Juan Rojo, Daniel Stump, Robert S. Thorne et al., Journal of High Energy Physics, 2013, 04 (2013)
Theoretical issues in PDF determination and associated uncertainties
The NNPDF Collaboration, Richard D. Ball, Valerio Bertone, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Juan Rojo and Maria Ubiali, Physics Letters B, 723, 4-5, p. 330–339 (2013)
Parton distributions with LHC data DOI
NNPDF Collaboration, Richard D. Ball, Valerio Bertone, Stefano Carrazza, Christopher S. Deans, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Nathan P. Hartland, Jose I. Latorre, Juan Rojo et al., Nuclear physics b, 867, 2, p. 244-289 (2013)
Reweighting and unweighting of parton distributions and the LHC W lepton asymmetry data DOI
NNPDF Collaboration, Richard D. Ball, Valerio Begone, Francesco Cerutti, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Nathan P. Hartland, Jose I. Latorre, Juan Rojo and Maria Ubiali, Nuclear physics b, 855, 3, p. 608-638 (2012)
Reweighting NNPDFs: The W lepton asymmetry (vol 849, pg 112, 2011) DOI
NNPDF Collaboration, Richard D. Ball, Valerio Bertone, Francesco Cerutti, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose I. Latorre, Juan Rojo and Maria Ubiali, Nuclear physics b, 855, 3, p. 927-928 (2012)
Unbiased global determination of parton distributions and their uncertainties at NNLO and at LO DOI
The NNPDF Collaboration, Richard D. Ball, Valerio Bertone, Francesco Cerutti, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose I. Latorre, Juan Rojo and Maria Ubiali, Nuclear physics b, 855, 2, p. 153-221 (2012)
Reweighting NNPDFs: The W lepton asymmetry (vol 849, pg 112, 2011) DOI
NNPDF Collaboration, Richard D. Ball, Valerio Bertone, Francesco Cerutti, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose I. Latorre, Juan Rojo and Maria Ubiali, Nuclear physics b, 854, 3, p. 926-927 (2012)
Precision NNLO determination of alpha(s)(M-Z) using an unbiased global parton set DOI
Richard D. Ball, Valerio Bertone, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose I. Latorre, Simone Lionetti, Juan Rojo and Maria Ubiali, Physics Letters B, 707, 1, p. 66-71 (2012)
On the impact of NMC data on NLO and NNLO parton distributions and Higgs production at the Tevatron and the LHC DOI
Richard D. Ball, Valerio Bertone, Francesco Cerutti, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose I. Latorre, Juan Rojo and Maria Ubiali, Physics Letters B, 704, 1-2, p. 36-42 (2011)
Impact of heavy quark masses on parton distributions and LHC phenomenology DOI
Richard Ball, Valerio Bertone, Francesco Cerutti, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose latorre, Juan Rojo and Maria Ubiali, Nuclear physics b, 849, 2, p. 296-363 (2011)
Reweighting NNPDFs: The W lepton asymmetry DOI
Richard D. Ball, Valerio Bertone, Francesco Cerutti, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose I. Latorre, Juan Rojo and Maria Ubiali, Nuclear physics b, 849, 1, p. 112-143 (2011)
Precision determination of alpha(S)(M-Z) using an unbiased global NLO parton set DOI
Simone Lionetti, Richard D. Ball, Valerio Bertone, Francesco Cerutti, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose I. Latorre, Juan Rojo and Maria Ubiali, Physics Letters B, 701, 3, p. 346-352 (2011)
A first unbiased global NLO determination of parton distributions and their uncertainties DOI
Richard D. Ball, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose I. Latorre, Juan Rojo and Maria Ubiali, Nuclear physics b, 838, 1-2, p. 136-206 (2010)
High-energy resummation of direct photon production at hadronic colliders DOI
Giovanni Diana, Juan Rojo and Richard D. Ball, Physics Letters B, 693, 4, p. 430-437 (2010)
The impact of heavy quark mass effects in the NNPDF global analysis
J. Rojo, R. ball, V. Bertone, F. Cerutti, L. Del Debbio, S. Forte, A. Guffanti, J. latorre and M. Ubiali, XVIII International Workshop on Deep-Inelastic Scattering and Related Subjects, 173 (2010)
Fitting parton distribution data with multiplicative normalization uncertainties DOI
The NNPDF Collaboration, Richard ball, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose I. Latorre, Juan Rojo and Maria Ubiali, Journal of High Energy Physics, 2010, 75 (2010)
Fitting parton distribution data with multiplicative normalization uncertainties DOI
NNPDF Collaboration, Richard D. Ball, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose I. Latorre, Juan Rojo and Maria Ubiali, Journal of High Energy Physics, 5, p. - (2010)
The SM and NLO multileg working group: Summary report DOI
T. Binoth, G. Dissertori, J. Huston, R. Pittau, J. andersen, J. Archibald, S. Badger, R. ball, G. Bevilacqua, I. Bierenbaum, L. Del Debbio, E. Gardi et al., Universite Joseph Fourier (2010)
Precision determination of electroweak parameters and the strange content of the proton from neutrino deep-inelastic scattering DOI
Richard D. Ball, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose I. Latorre, Andrea Piccione, Juan Rojo and Maria Ubiali, Nuclear physics b, 823, 1-2, p. 195-233 (2009)
A determination of parton distributions with faithful uncertainty estimation (vol 809, pg 1, 2009) DOI
Richard D. Ball, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose I. Latorre, Andrea Piccione, Juan Rojo and Maria Ubiali, Nuclear physics b, 816, 1-2, p. 293-293 (2009)
High energy resummation of Drell-Yan processes DOI
Simone Marzani and Richard D. Ball, Nuclear physics b, 814, 1-2, p. 246-264 (2009)
Can we trust small x resummation? DOI
Stefano Forte, Guido Altarelli and Richard D. Ball, Nuclear Physics B - Proceedings Supplements, 191, p. 64-75 (2009)
A determination of parton distributions with faithful uncertainty estimation DOI
Richard D. Ball, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose I. Latorre, Andrea Piccione, Juan Rojo and Maria Ubiali, Nuclear physics b, 809, 1-2, p. 163 (2009)
Finite-top-mass effects in NNLO Higgs production DOI
Simone Marzani, Richard D. Ball, Vittorio Del Duca, Stefano Forte and Alessandro Vicini, Nuclear Physics B - Proceedings Supplements, 186, p. 98-101 (2009)
Update on Neural Network Parton Distributions: NNPDF1.1 DOI
Juan Rojo, Richard D. Ball, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose I. Latorre, Andrea Piccione and Maria Ubiali, PROCEEDINGS OF THE 38TH INTERNATIONAL SYMPOSIUM ON MULTIPARTICLE DYNAMICS, VERLAG DEUTSCHES ELEKTRONEN-SYNCHROTRON, p. 73-77 (2009)
High Energy Resummation of Drell-Yan Processes DOI
Simone Marzani and Richard ball, Nuclear physics b (2008)
Higgs production via gluon-gluon fusion with finite top mass beyond next-to-leading order DOI
Simone Marzani, Richard D. Ball, Vittorio Del Duca, Stefano Forte and Alessandro Vicini, Nuclear physics b, 800, 1-2, p. 127-145 (2008)
Small x resummation with quarks: Deep-inelastic scattering DOI
Guido Altarelli, Richard D. Ball and Stefano Forte, Nuclear physics b, 799, 1-2, p. 199-240 (2008)
A determination of parton distributions with faithful uncertainty estimation DOI1 DOI2
Richard ball, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Jose latorre, Andrea Piccione, Juan Rojo and Maria Ubiali, Nuclear physics b (2008)
Resummation of hadroproduction cross-sections at high energy DOI
Richard D. Ball, Nuclear physics b, 796, 1-2, p. 137-183 (2008)
BFKL next-to-next-to-leading order DOI
Simone Marzani, Richard D. Ball, Pietro Falgari and Stefano Forte, Nuclear physics b, 783, 1-2, p. 143-175 (2007)
How resummation depresses the gluon at small x
Stefano Forte, Guido Altarelli and Richard D. Ball, Deep Inelastic Scattering, World Scientific, p. 101-104 (2007)

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Publications by Richard Ball