%%%% Nf=2+1+1
%%%% FLAG collaboration tag: PNDME 18A
@article{Lin:2018obj,
    author = "Lin, Huey-Wen and Gupta, Rajan and Yoon, Boram and Jang, Yong-Chull and Bhattacharya, Tanmoy",
    title = "{Quark contribution to the proton spin from 2+1+1-flavor lattice QCD}",
    eprint = "1806.10604",
    archivePrefix = "arXiv",
    primaryClass = "hep-lat",
    reportNumber = "LA-UR-18-25337, MSUHEP-18-010",
    doi = "10.1103/PhysRevD.98.094512",
    journal = "Phys. Rev. D",
    volume = "98",
    number = "9",
    pages = "094512",
    year = "2018"
}

%%%% Nf=2+1
%%%% FLAG collaboration tag: $\chi$QCD 18
@article{Liang:2018pis,
    author = "Liang, Jian and Yang, Yi-Bo and Draper, Terrence and Gong, Ming and Liu, Keh-Fei",
    title = "{Quark spins and Anomalous Ward Identity}",
    eprint = "1806.08366",
    archivePrefix = "arXiv",
    primaryClass = "hep-ph",
    doi = "10.1103/PhysRevD.98.074505",
    journal = "Phys. Rev. D",
    volume = "98",
    number = "7",
    pages = "074505",
    year = "2018"
}