National Academies of Sciences, Engineering, and Medicine. An Assessment of U.S.-Based Electron-Ion Collider Science (The National Academies Press, 2018).
Particle Data Group. Review of particle physics. Prog. Theor. Exp. Phys. 2022, 083C01 (2022).
Shifman, M. A., Vainshtein, A. I. & Zakharov, V. I. QCD and resonance physics. Theoretical foundations. Nucl. Phys. B 147, 385–447 (1979).
Shifman, M. A., Vainshtein, A. I. & Zakharov, V. I. QCD and resonance physics. Applications. Nucl. Phys. B 147, 448–518 (1979).
Shifman, M. A., Vainshtein, A. I. & Zakharov, V. I. Remarks on Higgs-boson interactions with nucleons. Phys. Lett. B 78, 443–446 (1978).
Xiong, W. et al. A small proton charge radius from an electron–proton scattering experiment. Nature 575, 147–150 (2019).
Pagels, H. Energy-momentum structure form factors of particles. Phys. Rev. 144, 1250–1260 (1966).
Teryaev, O. V. Gravitational form factors and nucleon spin structure. Front. Phys. 11, 111207 (2016).
Kharzeev, D. E. Mass radius of the proton. Phys. Rev. D 104, 054015 (2021).
Guo, Y., Ji, X. & Liu, Y. QCD analysis of near-threshold photon-proton production of heavy quarkonium. Phys. Rev. D 103, 096010 (2021).
Mamo, K. A. & Zahed, I. Diffractive photoproduction of J/ψ and ϒ using holographic QCD: gravitational form factors and GPD of gluons in the proton. Phys. Rev. D 101, 086003 (2020).
Pefkou, D. A., Hackett, D. C. & Shanahan, P. E. Gluon gravitational structure of hadrons of different spin. Phys. Rev. D 105, 054509 (2022).
Wilson, K. G. Confinement of quarks. Phys. Rev. D 10, 2445–2459 (1974).
Dürr, S. et al. Ab initio determination of light hadron masses. Science 322, 1224–1227 (2008).
Borsanyi, S. et al. Ab initio calculation of the neutron-proton mass difference. Science 347, 1452–1455 (2015).
Hatta, Y. & Yang, D.-L. Holographic J/ψ production near threshold and the proton mass problem. Phys. Rev. D 98, 074003 (2018).
Hatta, Y., Rajan, A. & Tanaka, K. Quark and gluon contributions to the QCD trace anomaly. J. High Energy Phys. 12, 8 (2018).
Hatta, Y., Rajan, A. & Yang, D.-L. Near threshold J/ψ and ϒ photoproduction at JLab and RHIC. Phys. Rev. D 100, 014032 (2019).
Mamo, K. A. & Zahed, I. J/ψ near threshold in holographic QCD: A and D gravitational form factors. Phys. Rev. D 106, 086004 (2022).
Ji, X., Liu, Y. & Zahed, I. Mass structure of hadrons and light-front sum rules in the ’t Hooft model. Phys. Rev. D 103, 074002 (2021).
Sun, P., Tong, X.-B. & Yuan, F. Perturbative QCD analysis of near threshold heavy quarkonium photoproduction at large momentum transfer. Phys. Lett. B 822, 136655 (2021).
Ji, X. Proton mass decomposition: naturalness and interpretations. Front. Phys. 16, 64601 (2021).
Ji, X. & Liu, Y. Quantum anomalous energy effects on the nucleon mass. Sci. China Phys. Mech. Astron. 64, 281012 (2021).
Lorcé, C., Metz, A., Pasquini, B. & Rodini, S. Energy-momentum tensor in QCD: nucleon mass decomposition and mechanical equilibrium. J. High Energy Phys. 2021, 121 (2021).
Duran, B. The J/ψ-007 Experiment: A Search for the LHCb Charm Pentaquarks in Hall C at Jefferson Lab. PhD thesis, Temple Univ. (2021).
Ali, A. et al. First measurement of near-threshold J/ψ exclusive photoproduction off the proton. Phys. Rev. Lett. 123, 072001 (2019).
Mamo, K. A. & Zahed, I. Nucleon mass radii and distribution: holographic QCD, lattice QCD and GlueX data. Phys. Rev. D 103, 094010 (2021).
Hou, T.-J. et al. New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC. Phys. Rev. D 103, 014013 (2021).
Alexandrou, C. et al. Complete flavor decomposition of the spin and momentum fraction of the proton using lattice QCD simulations at physical pion mass. Phys. Rev. D 101, 094513 (2020).
Yang, Y.-B. et al. Proton mass decomposition from the QCD energy momentum tensor. Phys. Rev. Lett. 121, 212001 (2018).
Shanahan, P. E. & Detmold, W. Gluon gravitational form factors of the nucleon and the pion from lattice QCD. Phys. Rev. D 99, 014511 (2019).
Wang, R., Chen, X. & Evslin, J. The origin of proton mass from J/Ψ photo-production data. Eur. Phys. J. C 80, 507 (2020).
Kharzeev, D. Quarkonium interactions in QCD. Proc. Int. Sch. Phys. Fermi 130, 105–131 (1996).
Kharzeev, D., Satz, H., Syamtomov, A. & Zinovjev, G. J/ψ photo-production and the gluon structure of the nucleon. Eur. Phys. J. C 9, 459–462 (1999).
Bosted, P. E. & Christy, M. E. Empirical fit to inelastic electron-deuteron and electron-neutron resonance region transverse cross sections. Phys. Rev. C 77, 065206 (2008).
Gryniuk, O., Joosten, S., Meziani, Z.-E. & Vanderhaeghen, M. ϒ photoproduction on the proton at the electron-ion collider. Phys. Rev. D 102, 014016 (2020).
D’Agostini, G. A multidimensional unfolding method based on Bayes’ theorem. Nucl. Instrum. Methods Phys. Res. A 362, 487–498 (1995).
Pauk, V. & Vanderhaeghen, M. Lepton universality test in the photoproduction of e−e+ versus μ−μ+ pairs on a proton target. Phys. Rev. Lett. 115, 221804 (2015).
Mathieu, V. et al. Vector meson photoproduction with a linearly polarized beam. Phys. Rev. D 97, 094003 (2018).
Ji, X. QCD analysis of the mass structure of the nucleon. Phys. Rev. Lett. 74, 1071–1074 (1995).
He, F., Sun, P. & Yang, Y.-B. Demonstration of the hadron mass origin from the QCD trace anomaly. Phys. Rev. D 104, 074507 (2021).
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