ncteq is hosted by Hepforge, IPPP Durham

nCTEQ project is an extension of the CTEQ collaborative effort to determine nuclear parton distribution functions (nPDFs). It generalizes the free-proton PDF framework to the nuclear case by computing the densities of a proton bound inside a nucleus. Hence nCTEQ, which stands for "nuclear CTEQ."

  • nCTEQ15 nuclear PDFs:

    Available Grids:

    • nCTEQ15:
      • The original release sent with nuclear uncertainties.
        Includes neutral current DIS, Drell-Yan, and RHIC pion production data
    • nCTEQ15HIX:
      • High x & Low Q2 analysis including JLab DIS data (CLAS & Hall C)
    • nCTEQ15WZ:
      • Extends nCTEQ15 including LHC heavy ion (pPb) data
    • nCTEQ15WZ+SIH:
      • Extends nCTEQ15WZ including Semi Inclusive Hadron (SIH) production data from RHIC (PHENIX & STAR) and LHC (ALICE)
    • nCTEQ15WZSIHdeut:
      • We investigate these possible tensions between neutrino deep-inelastic scattering (DIS) data and charged-lepton DIS starting from our nCTEQ15WZ+SIH set.
    • nCTEQ15HQ:
      • Extends nCTEQ15WZ including heavy quark and quarkonium production data from LHC
    • nCTEQ15SRC:
      • [Accepted for PRL] We extend the QCD Parton Model analysis using a factorized nuclear structure model inspired by the Short Range Correlation (SRC) framework. This allows us to related the nPDFs directly to individual nuclear properties.


    • doQcdCase Bash Script: Some older grids had a typo in the .info file: "OrderQcd" should be "OrderQCD" The zip files have been updated, but this bash script will fix older files.



    ManeParse Mathematica Software

    • ManeParse: Read PDF and Structure Function tables in LHAPDF format
    nCTEQ PDFs



    for comments or requests contact K.Kovarik karol.kovarik@uni-muenster.de
                                 F.Olness  olness@smu.edu