\begin{document}$^3P_0$\end{document} model, which combines the two-quark and four-quark components, is modified by considering the effects of the created quark pair's energy. Furthermore, the separation between the created quark pair and valence quark pair is modified. All the wave functions, including those for the mesons and the relative motion between two mesons, are obtained by solving the corresponding Schrödinger equation using the Gaussian expansion method. The aim of this study is to find a new set of parameters that can accurately describe the mass spectrum of low-lying light quarkonium and charmonium states. Moreover, certain exotic states, such as \begin{document}$X(3872)$\end{document}, can be described well in the unquenched quark model."> Light quarkonium and charmonium mass shifts in an unquenched quark model -
  • [1]

    E. Eichten, K. Gottfried, T. Kinoshitaet al., Phys. Rev. D17, 3090 (1978) [Erratum: Phys. Rev. D21, 313 (1980)]

  • [2]

    E. Eichten, K. Gottfried, T. Kinoshitaet al., Phys. Rev. D21, 203 (1980)

  • [3]

    S. N. Gupta, S. F. Radford, and W. W. Repko, Phys. Rev. D26, 3305 (1982)

  • [4]

    S. N. Gupta, S. F. Radford, and W. W. Repko, Phys. Rev. D28, 1716 (1983)

  • [5]

    S. N. Gupta, S. F. Radford, and W. W. Repko, Phys. Rev. D30, 2424 (1984)

  • [6]

    S. N. Gupta, S. F. Radford, and W. W. Repko, Phys. Rev. D31, 160 (1985)

  • [7]

    W. Kwong, P. B. Mackenzie, R. Rosenfeldet al., Phys. Rev. D37, 3210 (1988)

  • [8]

    W. Kwong and J. L. Rosner, Phys. Rev. D38, 279 (1988)

  • [9]

    T. Barnes, F. E. Close, P. R. Pageet al., Phys. Rev. D55, 4157 (1997)

  • [10]

    D. Ebert, R. N. Faustov, and V. O. Galkin, Phys. Rev. D67, 014027 (2003)

  • [11]

    S. F. Radford and W. W. Repko, Phys. Rev. D75, 074031 (2007)

  • [12]

    E. Eichten, S. Godfrey, H. Mahlkeet al., Rev. Mod. Phys.80, 1161 (2008)

  • [13]

    J. Segovia, A. M. Yasser, D. R. Entemet al., Phys. Rev. D78, 114033 (2008)

  • [14]

    I. V. Danilkin and Yu. A. Simonov, Phys. Rev. D81, 074027 (2010)

  • [15]

    J. Ferretti and E. Santopinto, Phys. Rev. D90, 094022 (2014)

  • [16]

    J. Segovia, D. R. Entem, F. Fernandezet al., Int. J. Mod. Phys. E22, 1330026 (2013)

  • [17]

    S. Godfrey and K. Moats, Phys. Rev. D92, 054034 (2015)

  • [18]

    J. Segovia, P. G. Ortega, D. R. Entemet al., Phys. Rev. D93, 074027 (2016)

  • [19]

    S. Godfrey and N. Isgur, Phys. Rev. D32, 189 (1985)

  • [20]

    J. Vijande, F. Fernandez, and A. Valcarce, J. Phys. G31, 481 (2005)

  • [21]

    J. Segovia, D. R. Entem, and F. Fernandez, Phys. Lett. B662, 33 (2008)

  • [22]

    S. K. Choiet al. (Belle), Phys. Rev. Lett.91, 262001 (2003)

  • [23]

    B. Aubertet al. (BaBar), Phys. Rev. Lett.90, 242001 (2003)

  • [24]

    D. Bessonet al. (CLEO), Phys. Rev. D68, 032002 (2003) [Erratum: Phys. Rev. D75, 119908 (2007)]

  • [25]

    J. Doveet al. (SeaQuest), Nature590(7847), 561 (2021) [Erratum:Nature604(7907), E26 (2022)]

  • [26]

    V. D. Burkert and C. D. Roberts, Rev. Mod. Phys.91(1), 011003 (2019)

  • [27]

    K. Miyahara, T. Hyodo, and W. Weise, Springer Proc. Phys.238, 981 (2020)

  • [28]

    E. van Beveren and G. Rupp, Phys. Rev. Lett.91, 012003 (2003)

  • [29]

    M. Albaladejo, P. Fernandez-Soler, J. Nieveset al., Eur. Phys. J. C78(9), 722 (2018)

  • [30]

    Y. S. Kalashnikova, Phys. Rev. D72, 034010 (2005)

  • [31]

    O. Zhang, C. Meng, and H. Q. Zheng, Phys. Lett. B680, 453 (2009)

  • [32]

    B. Q. Li and K. T. Chao, Phys. Rev. D79, 094004 (2009)

  • [33]

    E. Braaten and M. Lu, Phys. Rev. D77, 014029 (2008)

  • [34]

    D. Ebert, R. N. Faustov, and V. O. Galkin, Eur. Phys. J. C58, 399 (2008)

  • [35]

    J. Ferretti, G. Galatà, and E. Santopinto, Phys. Rev. D90(5), 054010 (2014)

  • [36]

    Y. Tan and J. Ping, Phys. Rev. D100(3), 034022 (2019)

  • [37]

    Z. Cao and Q. Zhao, Phys. Rev. D99(1), 014016 (2019)

  • [38]

    S. Q. Luo, B. Chen, Z. W. Liuet al., Eur. Phys. J. C80(4), 301 (2020)

  • [39]

    T. Barnes and E. S. Swanson, Phys. Rev. C77, 055206 (2008)

  • [40]

    X. Chen, J. Ping, C. D. Robertset al., Phys. Rev. D97(9), 094016 (2018)

  • [41]

    J. Ferretti and E. Santopinto, Phys. Lett. B789, 550 (2019)

  • [42]

    X. Chen, Y. Tan, and Y. Yang, Eur. Phys. J. Plus138(7), 653 (2023)

  • [43]

    S. Moszkowski, Nuclear Physics (New York: Gordon and Breach) p 3 (1968)

  • [44]

    R. Machleidt, K. Holinde, and Ch. Elster, Phys. Rep.149, 1 (1987)

  • [45]

    A. Valcarce, H. Garcilazo, F. Fernandezet al., Rep. Prog. Phys.68, 965 (2005)

  • [46]

    R. L. Workmanet al. (Particle Data Group), Prog. Theor. Exp. Phys. 083C01 (2022)

  • [47]

    L. Micu, Nucl. Phys.B10, 521 (1969)

  • [48]

    A. Le Yaouanc, L. Oliver, O. Pèneet al., Phys. Rev. D8, 2223 (1973)

  • [49]

    A. Le Yaouanc, L. Oliver, O. Pèneet al., Phys. Rev. D9, 1415 (1974)

  • [50]

    S. Capstick and N. Isgur, Phys. Rev. D34, 2809 (1986)

  • [51]

    W. Roberts and B. Silvestre-Brac, Acta Phys. Austriaca11, 171 (1992)

  • [52]

    S. Capstick and W. Roberts, Phys. Rev. D49, 4570 (1994)

  • [53]

    P. R. Page, Nucl. Phys. B446, 189 (1995)

  • [54]

    E. S. Ackleh, T. Barnes, and E. S. Swanson, Phys. Rev. D54, 6811 (1996)

  • [55]

    J. Segovia, D. R. Entem, and F. Fernández, Phys. Lett. B715, 322 (2012)

  • [56]

    A. Le Yaouanc, L. Oliver, O. Peneet al., Phys. Lett. B72, 57 (1977)

  • [57]

    N. N. Achasov, Phys. Part. Nucl.48(6), 839 (2017)

  • [58]

    X. W. Kang and J. A. Oller, Eur. Phys. J. C77(6), 399 (2017)

  • [59]

    J. Ferretti, G. Galatà, and E. Santopinto, Phys. Rev. C88(1), 015207 (2013)

  • [60]

    P. G. Ortega, J. Segovia, D. R. Entemet al., Phys. Rev. D81, 054023 (2010)

  • [61]

    S. Coito, G. Rupp, and E. van Beveren, Eur. Phys. J. C73(3), 2351 (2013)

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