- [1]
M. Gell-Mann, Phys. Lett. 8:214(1964)
- [2]
S. K. Choi et al (Belle Collaboration), Phys. Rev. Lett., 91:262001(2003)
- [3]
D. Acosta et al (CDF Collaboration), Phys. Rev. Lett., 93:072001(2004)
- [4]
B. Aubert et al (BaBar Collaboration), Phys. Rev. D, 71:071103(2005)
- [5]
V. M. Abazov et al (D0 Collaboration), Phys. Rev. Lett., 93:162002(2004)
- [6]
N. Brambilla et al, Eur. Phys. J. C, 71:1534(2011)
- [7]
K. A. Olive et al (Particle Data Group Collaboration), Chin. Phys., C, 38:090001(2014)
- [8]
A. Esposito, A. L. Guerrieri, F. Piccinini, A. Pilloni and A. D. Polosa, Int. J. Mod. Phys. A, 30:1530002(2015)
- [9]
H. X. Chen, W. Chen, X. Liu, and S. L. Zhu, arXiv:1601.02092[hep-ph]
- [10]
S. K. Choi et al (Belle Collaboration), Phys. Rev. Lett., 100:142001(2008)
- [11]
R. Aaij et al (LHCb Collaboration), Phys. Rev. Lett., 112:222002(2014)
- [12]
A. Bondar et al (Belle Collaboration), Phys. Rev. Lett., 108:122001(2012)
- [13]
M. Ablikim et al (BESⅢ Collaboration), Phys. Rev. Lett., 110:252001(2013)
- [14]
Z. Q. Liu et al (Belle Collaboration), Phys. Rev. Lett., 110:252002(2013)
- [15]
M. Ablikim et al (BESⅢ Collaboration), Phys. Rev. Lett., 112:132001(2014)
- [16]
R. Aaij et al (LHCb Collaboration), Phys. Rev. Lett., 115:072001(2015)
- [17]
V. M. Abazov et al (D0 Collaboration), arXiv:1602.07588[hep-ex]
- [18]
F. K. Guo, C. Hanhart, and U. G. Meissner, Eur. Phys. J. A, 40:171(2009)
- [19]
S. Weinberg, Phys. Rev. Lett., 110:261601(2013)
- [20]
M. Knecht and S. Peris, Phys. Rev. D, 88:036016(2013)
- [21]
R. F. Lebed, Phys. Rev. D, 88:057901(2013)
- [22]
Y. Q. Chen and X. Q. Li, Phys. Rev. Lett., 93:232001(2004)
- [23]
H. Y. Cheng and W. S. Hou, Phys. Lett. B, 566:193(2003)
- [24]
L. Maiani, F. Piccinini, A. D. Polosa, and V. Riquer, Phys. Rev. D, 71:014028(2005)
- [25]
A. Ali, C. Hambrock, I. Ahmed and M. J. Aslam, Phys. Lett. B, 684:28(2010)
- [26]
A. Ali, C. Hambrock, and M. J. Aslam, Phys. Rev. Lett., 104:162001(2010); Phys. Rev. Lett., 107:049903(2011)
- [27]
A. Ali, C. Hambrock, and S. Mishima, Phys. Rev. Lett., 106:092002(2011)
- [28]
A. Ali, C. Hambrock and W. Wang, Phys. Rev. D, 85:054011(2012)
- [29]
A. Ali, L. Maiani, A. D. Polosa, and V. Riquer, Phys. Rev. D, 91:017502(2015)
- [30]
X. W. Liu, H. W. Ke, Y. B. Ding, and X. Q. Li, Chin. Phys. C, 39:083103(2015)
- [31]
L. Maiani, F. Piccinini, A. D. Polosa, and V. Riquer, Phys. Rev. D, 89:114010(2014)
- [32]
L. Ma, X. H. Liu, X. Liu, and S. L. Zhu, Phys. Rev. D, 91:034032(2015)
- [33]
Z. G. Wang, arXiv:1601.05541[hep-ph]
- [34]
R. F. Lebed and A. D. Polosa, arXiv:1602.08421[hep-ph]
- [35]
A. De Rujula, H. Georgi and S. L. Glashow, Phys. Rev. D, 12:147-162(1975)
- [36]
R. Zhu and C. F. Qiao, Phys. Lett. B, 756:259-264(2016)
- [37]
The LHCb Collaboration (LHCb Collaboration), LHCb-CONF-2016-004, CERN-LHCb-CONF-2016-004
- [38]
S. S. Agaev, K. Azizi, and H. Sundu, arXiv:1602.08642[hep-ph]
- [39]
W. Chen, H. X. Chen, X. Liu, T. G. Steele, and S. L. Zhu, arXiv:1602.08916[hep-ph]
- [40]
Z. G. Wang, arXiv:1602.08711[hep-ph]
- [41]
C. M. Zanetti, M. Nielsen, and K. P. Khemchandani, arXiv:1602.09041[hep-ph]
- [42]
Y. R. Liu, X. Liu, and S. L. Zhu, Phys. Rev. D, 93:074023(2016)
- [43]
L. Tang and C. F. Qiao, arXiv:1603.04761[hep-ph]
- [44]
X. H. Liu and G. Li, arXiv:1603.00708[hep-ph]
- [45]
C. J. Xiao and D. Y. Chen, arXiv:1603.00228[hep-ph]
- [46]
X. G. He and P. Ko, arXiv:1603.02915[hep-ph]