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João Ramalho Pires

Email: jnpires@lip.pt

Current Positions:

Education

Past Appointments

Research Interests

My research area is theoretical particle physics, with a particular emphasis on understanding the fundamental interactions that govern the behaviour of elementary particles. I am especially interested in the computation of perturbative QCD corrections, which enable precision tests of our understanding of high-energy particle physics at hadron colliders. At the high energies probed by the LHC, the QCD coupling constant is sufficiently small to allow a perturbative approach, which has proven successful in calculating cross sections for numerous final states produced in proton-proton collisions. To this end, I aim to develop and refine new techniques to carry out these computations and to apply them to deliver accurate theoretical calculations that can be directly used by experimental collaborations at the LHC and future colliders to analyze and interpret experimental data against the predictions of the Standard Model.

Selected Publications

  1. NNLOJET: a parton-level event generator for jet cross sections at NNLO QCD accuracy
    A. Huss, L. Bonino, O. Braun-White, S. Caletti, et.al. ; PDF

  2. Precise Determination of the Strong Coupling Constant from Dijet Cross Sections up to the Multi-TeV Range
    Fazila Ahmadova, Daniel Britzger, Xuan Chen, Johannes Gassler, et.al. ; PDF

  3. Event generators for high-energy physics experiments
    J. M. Campbell, M. Diefenthaler, T. J. Hobbs, S. Höche, J. Isaacson, F. Kling, S. Mrenna, et.al.
    SciPost Phys. 16 130 (2024) ; PDF

  4. NNLO interpolation grids for jet production at the LHC
    D. Britzger, A. Gehrmann-De Ridder, T.Gehrmann, E.W.N. Glover, C. Gwenlan, A.Huss, J.Pires, K.Rabbertz, D.Savoiu, M.R. Sutton, J.Stark
    Eur. Phys. J. C 82 10 (2022) 930 ; PDF

  5. Snowmass 2021 Whitepaper: Proton Structure at the Precision Frontier
    S. Amoroso, A. Apyan, N. Armesto, R.D. Ball, V. Bertone, et.al.
    Acta Phys.Polon.B 53 (2022) 12 ; PDF

  6. Status of NNLO QCD corrections for process with one or more jets in the final state at the LHC
    J. Pires
    PoS PANIC2021 (2022) 394 ; PDF

  7. Impact of jet-production data on the next-to-next-to-leading order determination of HERAPDF2.0 parton distributions
    H1&ZEUS collaborations, A. Gehrmann-De Ridder, T.Gehrmann, E.W.N. Glover, A. Huss and Joao Pires
    Eur. Phys. J. C 82 03 (2022) 243 ; PDF

  8. May the four be with you: Novel IR-subtraction methods to tackle NNLO calculations
    W.J. Torres Bobadilla, G.F.R. Sborlini, P. Banerjee, S. Catani, J.Pires, et al.
    Eur. Phys. J. C 81 03 (2021) 250 ; PDF

  9. Impact of LHC jet data on Parton Distribution Functions
    J. Pires
    PoS LHCP2020 (2021) 145 ; PDF

  10. The Large Hadron-Electron Collider at the HL-LHC
    LHeC study group
    CERN-ACC-Note-2020-0002 ; PDF

  11. Phenomenology of NNLO jet production at the LHC and its impact on parton distributions
    R. Khalek, S. Forte, T. Gehrmann, A. Gehrmann-De Ridder, T. Giani, E.W.N. Glover, A. Huss, E. Nocera, J. Pires, J. Rojo, G. Stagnitto
    Eur. Phys. J. C 80 08 (2020) 797 ; PDF

  12. Les Houches 2019: Physics at TeV Colliders: Standard Model Working Group Report
    S. Amoroso, P. Azzurri, J. Bendavid, E. Bothmann, D. Britzger, H. Brooks, A. Buckley, M. Calvetti, X. Chen, M. Chiesa, L. Cieri, J.Pires, et al.
    Les Houches 2019 Working Group Report ; PDF

  13. αs(2019): Precision measurements of the QCD coupling
    David d'Enterria, Stefan Kluth (eds.), J.Pires, et al. ; PDF

  14. Calculations for deep inelastic scattering using fast interpolation grid techniques at NNLO in QCD and the extraction of αs from HERA data
    D. Britzger, J. Currie, A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover, C. Gwenlan, A. Huss, T. Morgan, J. Niehues, J. Pires, K. Rabbertz, M.R. Sutton
    Eur. Phys. J. C 79 10 (2019) 845 ; PDF

  15. The triple differential di-jet cross section at the LHC
    Aude Gehrmann-De Ridder, Thomas Gehrmann, E.W.N. Glover, Alexander Huss, Joao Pires
    Phys.Rev.Lett. 123 102001 (2019) ; PDF

  16. Jet cross sections at the LHC and the quest for higher precision
    Johannes Bellm, Andy Buckley, Xuan Chen, Aude Gehrmann-De Ridder, Thomas Gehrmann, Nigel Glover, Alexander Huss, Joao Pires, Stefan Hoche, Joey Huston, Silvan Kuttimalai, Simon Platzer, Emanuele Re
    Eur. Phys. J. C 80 02 (2020) 93 ; PDF

  17. Standard Model Physics at the HL-LHC and HE-LHC
    P. Azzi, S. Farry, P. Nason, A. Tricoli, D. Zeppenfeld (editors), J.Pires, et al.
    CERN Yellow Rep.Monogr. Vol 7 (2019) 1-220 ; CERN-LPCC-2018-03 PDF

  18. Future physics opportunities for high-density QCD at the LHC with heavy-ion and proton beams
    Z. Citron, A. Dainese, J.F. Grosse-Oetringhaus, J.M. Jowett, Y.-J. Lee, U.A. Wiedemann, M. Winn (editors), J.Pires, el al.
    CERN Yellow Rep.Monogr. Vol 7 (2019) 1159-1410 ; CERN-LPCC-2018-07 ; PDF

  19. Scale setting in inclusive jet production at hadron colliders
    Joao Pires
    PoS LHCP2018 (2018) ; 193 PDF

  20. Infrared sensitivity of single jet inclusive production at hadron colliders
    J. Currie, A. Gehrmann-De Ridder, T.Gehrmann, E.W.N. Glover, A. Huss and Joao Pires
    JHEP 1810 155 (2018) ; PDF

  21. Jet cross sections at the LHC with NNLOJET
    J.R. Currie, A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover, A. Huss, Joao Pires
    PoS LL2018 (2018) 001 ; PDF

  22. NNLO predictions for jets and V+jet at the LHC
    A. Huss, J.R. Currie, A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover, Joao Pires, D. Walker
    PoS DIS2018 (2018) 106 ; PDF

  23. Les Houches 2017: Physics at TeV Colliders Standard Model Working Group Report
    J. Bendavid, F. Caola, V. Ciulli, R. Harlander, G. Heinrich, J. Huston, S. Kallweit, S. Prestel, E. Re, K. Tackmann, J. Thaler, K. Theofilatos (conveners), J.Pires, et al.
    Les Houches 2017 Working Group Report ; PDF

  24. Jet cross sections and transverse momentum distributions with NNLOJET
    X. Chen, J. Cruz-Martinez, J.R. Currie, R. Gauld, A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover, A. Huss, T.A. Morgan, J. Niehues, Joao Pires, D.M. Walker
    PoS RADCOR2017 (2018) 074 ; PDF

  25. NNLO predictions for Z-boson pair production at the LHC
    G. Heinrich, S. Jahn, S.P. Jones, M. Kerner, Joao Pires
    JHEP 1803 142 (2018) ; PDF

  26. Precise predictions for dijet production at the LHC
    J. Currie, A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover, A. Huss and Joao Pires
    Phys.Rev.Lett. 119 152001 (2017) ; PDF

  27. Differential single jet inclusive production at Next-to-Next-to-Leading Order in QCD
    J.R. Currie, A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover, A. Huss, Joao Pires
    Proceedings of the 52nd Rencontres de Moriond on QCD and High Energy Interactions (Moriond QCD 2017) ; PDF

  28. Single jet Inclusive production for the individual jet pT scale choice at the LHC
    J. Currie, A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover, A. Huss and Joao Pires
    Acta Phys.Polon. B48 955-967 (2017) ; PDF

  29. NNLO QCD predictions for single jet inclusive production at the LHC
    J. Currie, E.W.N. Glover and Joao Pires
    Phys.Rev.Lett. 118 072002 (2017) ; PDF

  30. Transverse momentum resummation for Higgs boson pair production at LHC with top quark mass effects
  31. Giancarlo Ferrera, Joao Pires
    JHEP 1702 139 (2017) ; PDF

  32. Future prospects of αs from NNLO jets at the LHC and beyond
    David d'Enterria, Peter Z. Skands (eds.), J.Pires, et al.
    CERN-PH-TH-2015-299 ; PDF

  33. Precise QCD predictions for jet production at the LHC
    Joao Pires
    EPJ Web Conf. 90 07005 (2015) ; PDF

  34. Perturbative QCD description of jet data from LHC Run-I and Tevatron Run-II
    S.Carrazza and Joao Pires
    JHEP 1410 145 (2014) ; PDF

  35. NNLO QCD corrections to dijet production at hadron colliders
    J.R. Currie, A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover, Joao Pires
    PoS RADCOR2013 (2013) 004 ; PDF

  36. NNLO QCD corrections to jet production at hadron colliders from gluon scattering
    J. Currie, A. Gehrmann-De Ridder, E.W.N. Glover and Joao Pires
    JHEP 1401 110 (2014) ; PDF

  37. Second order QCD corrections to jet production at hadron colliders: the all-gluon contribution
    A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover and Joao Pires
    Phys.Rev.Lett. 110 162003 (2013) ; PDF

  38. Theoretical developments in jet physics at hadron colliders
    A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover, Joao Pires
    Proceedings of the 48th Rencontres de Moriond on QCD and High Energy Interactions (Moriond QCD 2013) ; PDF

  39. Double virtual corrections for gluon scattering at NNLO
    A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover and Joao Pires
    JHEP 1302 026 (2013) ; PDF

  40. Real-Virtual corrections for gluon scattering at NNLO
    A. Gehrmann-De Ridder, E.W.N. Glover and Joao Pires
    JHEP 1202 141 (2012) ; PDF

  41. Double real radiation corrections to gluon scattering at NNLO
    E.W.N. Glover, Joao Pires
    Nucl.Phys.Proc.Suppl. 205-206 (2010) 176-181 ; PDF

  42. Antenna subtraction for gluon scattering at NNLO
    E.W.N. Glover and Joao Pires
    JHEP 1006 096 (2010) ; PDF