[1] AAIJ R, ADEVA B, ADINOLFI M, et al[LHCb]. Phys Rev Lett, 2017, 119(11): 112001. doi:  10.1103/PhysRevLett.119.112001
[2] CAPSTICK S, ISGUR N. Phys Rev D, 1986, 34: 2809; [AIP Conf Proc, 1985, 132: 267].
[3] EBERT D, FAUSTOV R N, GALKIN V O, et al. Phys Rev D, 2002, 66: 014008. doi:  10.1103/PhysRevD.66.014008
[4] YOSHIDA T, HIVAMA E, HOSAKA A, et al. Phys Rev D, 2015, 92(11): 114029. doi:  10.1103/PhysRevD.92.114029
[5] LÜ Q F, WANG K L, XIAO L Y, et al. Phys Rev D, 2015, 96(11): 114006. doi:  10.1103/PhysRevD.96.114006
[6] CHEN H X, MAO Q, CHEN W, et al. [Erratum: Phys Rev D, 2017, 96(11): 119902]. Phys Rev D, 2017, 96(3): 031501.
[7] XIAO L Y, LÜ Q F, ZHU S L. Phys Rev D, 2018, 97(7): 074005. doi:  10.1103/PhysRevD.97.074005
[8] HE H Z, LIANG W, LÜ Q F. Phys Rev D, 2022, 105(1): 014010. doi:  10.1103/PhysRevD.105.014010
[9] BARNES T, BLACK N, PAGE P R. Phys Rev D, 2003, 68: 054014. doi:  10.1103/PhysRevD.68.054014
[10] ROSNER J L. Comments Nucl Part Phys, 1986, 16: 109.
[11] GODFREY S, KOKOSKI R. Phys Rev D, 1991, 43: 1679. doi:  10.1103/PhysRevD.43.1679
[12] CAHN R N, JACKSON J D. Phys Rev D, 2003, 68: 037502. doi:  10.1103/PhysRevD.68.037502
[13] CLOSE F E, SWANSON E S. Phys Rev D, 2005, 72: 094004. doi:  10.1103/PhysRevD.72.094004
[14] EBERT D, FAUSTOV R, GALKIN V. Eur Phys J C, 2010, 66: 197; EBERT D, FAUSTOV R, GALKIN V. Phys Rev D, 2009, 79: 114029.
[15] MATSUKI T, MORII T. Phys Rev D, 1997, 56: 5646. MATSUKI T, MORII T, SUDOH K. Prog Theor Phys, 2007, 117: 1077.
[16] MATSUKI T, MORII T, SEO K. Prog Theor Phys, 2010, 124: 285. doi:  10.1143/PTP.124.285
[17] ZENG J, ORDERN J W, ROBERTS W. Phys Rev D, 1993, 52: 5229. doi:  10.1103/PhysRevD.52.5229
[18] BLATT J M, WEISSKOPF V F. Theoretical Nuclear Physics[M]. New Jersey: John Wiley & Sons, 1952; MESSIAH A. Quantum Mechanics[M]. New Jersey: John Wiley & Sons, 1958.
[19] ROSE M E. Relativistic Electron Theory[M]. New Jersey: John Wiley & Sons, 1961; SAKURAI J J. Advanced Quantum Mechanics[M]. Hoboken: Addison Wesley, 1967.
[20] MATSUKI T, MAWATARI K, MORII T. arXiv: hep-ph/0408326.
[21] MATSUKI T. JPS Conf Proc, 2019, 26: 022026. doi:  10.7566/JPSCP.26.022026