- 
								[1]
								T. Aaltonen et al. (CDF collaboration), Phys. Rev. Lett. 107, 201802 (2011) 
- 
								[2]
								R. Aaij et al. (LHCB collaboration), Phys. Lett. B 725, 25 (2013) 
- 
								[3]
								R. Aaij et al. (LHCB collaboration), Phys. Rev. Lett. 123, 031801 (2019) 
- 
								[4]
								R. Aaij et al. (LHCB collaboration), JHEP 06 115 (2017); 09, 145 (2018) 
- 
								[5]
								R. Aaij et al. (LHCB collaboration), JHEP 09, 146 (2018) 
- 
								[6]
								C. H. Chen and C. Q. Geng, Phys. Rev. D 64, 074001 (2001) 
- 
								[7]
								C. H. Chen and C. Q. Geng, Phys. Lett. B 516, 327 (2001) 
- 
								[8]
								T. Gutsche, M. A. Ivanov, J. G. Körner et al., Phys. Rev. D 87, 074031 (2013) 
- 
								[9]
								T. M. Aliev, V. Bashiry, and M. Savcı, Nucl. Phys. B 709, 115 (2005) 
- 
								[10]
								T. Mannel and Y. M. Wang, JHEP 12, 067 (2011) 
- 
								[11]
								L. Mott and W. Roberts, Int. J. Mod. Phys. A 27, 1250016 (2012) 
- 
								[12]
								R. N. Faustov and V. O. Galkin, Phys. Rev. D 96(5), 053006 (2017) 
- 
								[13]
								Y. M. Wang, Y. Li, and C. D. Lü, Eur. Phys. J. C 59, 861 (2009) 
- 
								[14]
								Y. M. Wang and Y. L. Shen, JHEP 02, 179 (2016) 
- 
								[15]
								P. Böer, T. Feldmann, and D. van Dyk, JHEP 01, 155 (2015) 
- 
								[16]
								L. Mott and W. Roberts, Int. J. Mod. Phys. A 30, 1550172 (2015) 
- 
								[17]
								R. M. Wang, Y. G. Xu, C. Hua et al., Phys. Rev. D 103, 013007 (2021) 
- 
								[18]
								T. Mannel, W. Roberts, and Z. Ryzak, Nucl. Phys. 355, 38 (1991) 
- 
								[19]
								CLEO Collaboration, Phys. Rev. Lett. 94, 191801 (2005) 
- 
								[20]
								T. Mannel and S. Recksiegel, J. Phys. G: Nucl. Part. Phys. 24, 979 (1998) 
- 
								[21]
								C. S. Huang and C. Q. Geng, Phys. Rev. D 63, 114024 (2001) 
- 
								[22]
								T. M. Aliev, A. Özpineci, and M. Savcı, Nucl. Phys. 649, 168 (2003) 
- 
								[23]
								G. P. Lepage and S. J. Brodsky, Phys. Rev. D 22, 2157 (1980) 
- 
								[24]
								S. J. Brofsky and G. R. Farrar, Phys. Rev. D 11, 1309 (1975) 
- 
								[25]
								C. F. Perdristat, V. Punjabi, and M. Vanderhaeghen, Prog. Part. Nucl. Phys. 59, 694 (2007) 
- 
								[26]
								X. H. Guo and T. Huang, Phys. Rev. D 53, 4946 (1996) 
- 
								[27]
								C. S. Huang and H. G Yan, Phys. Rev. D 59, 114022 (1999) 
- 
								[28]
								L. L. Liu, X. W. Kang, Z. Y. Wang et al., Chin. Phys. C 44, 083107 (2020) 
- 
								[29]
								L. L. Liu, C. Wang, X. W. Kang et al., Eur. Phys. J. C 80, 193 (2020) 
- 
								[30]
								N. G. Deshande, X. G He, and J. Trampetic, Phys. Lett. B 367, 362-368 (1996) 
- 
								[31]
								E. Golowich and S. Pakvasa, Phys. Rev. D 51, 1215 (1995) 
- 
								[32]
								X. H. Guo and T. Muta, Phys. Rev. D 54, 4629 (1996) 
- 
								[33]
								Liang-Liang Liu, Chao Wang, and Xin-Heng Guo, Chin. Phys. C 42, 103106 (2018) 
- 
								[34]
								Liang-Liang Liu, Chao Wang, Ying Liu et al., Phys. Rev. D 95, 054001 (2017) 
- 
								[35]
								Y. Liu, X. H. Guo, and C. Wang, Phys. Rev. D 91, 016006 (2015) 
- 
								[36]
								X. H. Guo and H. K. Wu, Phys. Lett. B 654, 97 (2007) 
- 
								[37]
								M. H. Weng, X. H. Guo, and A. W. Thomas, Phys. Rev. D 83, 056006 (2011) 
- 
								[38]
								X. H. Guo and X. H. Wu, Phys. Rev. D 76, 056004 (2007) 
- 
								[39]
								L. Zhang and X. H. Guo, Phys. Rev. D 87, 076013 (2013) 
- 
								[40]
								R. Jakob, P. Kroll, M. Schürmann et al., Z. Phys. A 347, 109 (1993) 
- 
								[41]
								K. Azizi, S. Kartal, A. T. Olgun et al., JHEP 10, 118 (2012) 
- 
								[42]
								M. J. Aslam, C. D. Lü, and Y. M. Wang, Phys. Rev. D 79, 074007 (2009) 
- 
								[43]
								W. J. Li, Y. B. Dai, and C. S. Huang, Eur. Phys. J. C 40, 565 (2005) 
- 
								[44]
								A. K. Giri and R. Mohanta, Eur. Phys. J C 45, 151 (2006) 
- 
								[45]
								P. A. Zyla et al. (Particle Data Group), Prog. Theor. Exp. Phys. 2020, 083C01 (2020) 
- 
								[46]
								Q. Y. Hu, X. N. Li, and Y. D. Yang, Arxiv: 1701.04029[hep-ph] 
- 
								[47]
								Q. Y. Hu, X. Q. Li, and Y. D. Yang, Eur. Phys. J C 77, 190 (2017) 
- 
								[48]
								W. Detmold and S. Meinel, Phys. Rev. D 93, 074501 (2016)