The parton distribution functions (PDFs) of heavy mesons are evaluated from their light-front wave functions, which are obtained from a basis light-front quantization in the leading Fock sector representation. We consider the mass eigenstates from an effective Hamiltonian consisting of the confining potential adopted from light-front holography in the transverse direction, a longitudinal confinement, and a one-gluon exchange interaction with running coupling. We present the gluon and the sea quark PDFs which we generate dynamically from the QCD evolution of the valence quark distributions.
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We thank S. Jia and N. Xu for many useful discussions. C. M. is supported by the National Natural Science Foundation of China (NSFC) under the under the Grants No. 11850410436 and No. 11950410753. C. M. is also supported by the new faculty startup funding by the Institute of Modern Physics, Chinese Academy of Sciences. This work of J. L., C. M., and X. Z. is also supported by the Strategic Priority Research Program of the Chinese Academy of Sciences, Grant No. XDB34000000. M. Li is supported in part by the European Research Council (ERC) under the European Unions Horizon 2020 research and innovation programme (Grant Agreement No. ERC-2015-CoG-681707). The content of this article does not reflect the official opinion of the European Union and responsibility for the information and views expressed therein lies entirely with the authors. This work of X. Z. is supported by new faculty startup funding by the Institute of Modern Physics, Chinese Academy of Sciences and by Key Research Program of Frontier Sciences, CAS, Grant No. ZDBS-LY-7020. J. P. V. is supported in part by the Department of Energy under Awards No. DE-FG02-87ER40371 and No. DESC00018223 (SciDAC-4/NUCLEI). A portion of the computational resources were provided by the National Energy Research Scientific Computing Center (NERSC), which is supported by the Office of Science of the U.S. Department of Energy under Award No. DE-AC02-05CH11231.