- 
								[1]
								E. Oset et al, Int. J. Mod. Phys. E, 25:1630001 (2016) 
- 
								[2]
								P. del Amo Sanchez et al[BaBar Collaboration], Phys. Rev. D 93 (5):052013 (2016) 
- 
								[3]
								Y. Ushiroda et al (Belle Collaboration), Phys. Rev. D, 74:111104 (2006) 
- 
								[4]
								B. Aubert et al (BaBar Collaboration), Phys. Rev. D, 79:011102 (2009) 
- 
								[5]
								H. Sahoo et al (Belle Collaboration), Phys. Rev. D, 84:071101 (2011) 
- 
								[6]
								B. Aubert et al (BaBar Collaboration), Phys. Rev. D, 70:091104 (2004) 
- 
								[7]
								R. Aaij et al (LHCb Collaboration), Phys. Rev. D, 92 (11):112002 (2015) 
- 
								[8]
								Y. Amhis et al, Eur. Phys. J. C, 77 (12):895 (2017) 
- 
								[9]
								G. R. Lu, R. M. Wang, and Y. D. Yang, Eur. Phys. J. C, 34:291 (2004) 
- 
								[10]
								Y. Li and C. D. Lu, Phys. Rev. D, 74:097502 (2006) 
- 
								[11]
								A. Kozachuk, D. Melikhov, and N. Nikitin, Phys. Rev. D, 93 (1):014015 (2016) 
- 
								[12]
								S. de Boer and G. Hiller, JHEP, 1708:091 (2017) 
- 
								[13]
								A. Khodjamirian, G. Stoll, and D. Wyler, Phys. Lett. B, 358:129 (1995) 
- 
								[14]
								Li-Sheng Geng and Eulogio Oset, Phys. Rev. D, 94:014018 (2016) 
- 
								[15]
								J. J. Sakurai, Currents and Mesons, (Chicago:University of Chicago Press, 1969) 
- 
								[16]
								M. Bando, T. Kugo, S. Uehara, K. Yamawaki, and T. Yanagida, Phys. Rev. Lett., 54:1215 (1985) 
- 
								[17]
								M. Bando, T. Kugo, and K. Yamawaki, Phys. Rep., 164:217 (1988) 
- 
								[18]
								U. G. Meissner, Phys. Rep., 161:213 (1988) 
- 
								[19]
								S. Fajfer and P. Singer, Phys. Rev. D, 56:4302 (1997) 
- 
								[20]
								S. Fajfer, S. Prelovsek, and P. Singer, Eur. Phys. J. C, 6:471 (1999) 
- 
								[21]
								B. Aubert et al (BaBar Collaboration), Phys. Rev. D, 78:071101 (2008) 
- 
								[22]
								A. Abdesselam et al (Belle Collaboration), Phys. Rev. Lett., 118 (5):051801 (2017) 
- 
								[23]
								A. Biswas, S. Mandal, and N. Sinha, arXiv:1702.05059[hep-ph] 
- 
								[24]
								Y. L. Shen and G. Li, Eur. Phys. J. C, 73:2441 (2013) 
- 
								[25]
								G. Burdman, E. Golowich, J. L. Hewett, and S. Pakvasa, Phys. Rev. D, 52:6383 (1995) 
- 
								[26]
								M. Bayar, W. H. Liang, and E. Oset, Phys. Rev. D, 90:114004 (2014) 
- 
								[27]
								J. R. Pelaez and G. Rios, Phys. Rev. Lett., 97:242002 (2006) 
- 
								[28]
								S. Weinberg, Phys. Rev., 137:B672 (1965) 
- 
								[29]
								C. Hanhart, Y. S. Kalashnikova, and A. V. Nefediev, Phys. Rev. D, 81:094028 (2010) 
- 
								[30]
								D. Gamermann, J. Nieves, E. Oset, and E. Ruiz Arriola, Phys. Rev. D, 81:014029 (2010) 
- 
								[31]
								T. Hyodo, D. Jido, and A. Hosaka, Phys. Rev. C, 78:025203 (2008) 
- 
								[32]
								T. Sekihara, T. Hyodo, and D. Jido, PTEP, 2015:063D04 (2015) 
- 
								[33]
								F. Aceti and E. Oset, Phys. Rev. D, 86:014012 (2012) 
- 
								[34]
								C. W. Xiao, F. Aceti, and M. Bayar, Eur. Phys. J. A, 49:22 (2013) 
- 
								[35]
								N. N. Achasov, M. S. Dubrovin, V. N. Ivanchenko, A. A. Kozhevnikov, and E. V. Pakhtusova, Int. J. Mod. Phys. A, 7:3187 (1992) 
- 
								[36]
								N. N. Achasov and A. A. Kozhevnikov, Phys. Lett. B, 233:474 (1989) 
- 
								[37]
								N. N. Achasov and A. A. Kozhevnikov, Int. J. Mod. Phys. A, 7:4825 (1992) 
- 
								[38]
								J. A. Oller, E. Oset, and J. R. Pelaez, Phys. Rev. D, 62:114017 (2000) 
- 
								[39]
								C. Patrignani et al (Particle Data Group), Chin. Phys. C, 40 (10):100001 (2016) 
- 
								[40]
								H. Y. Cheng, Phys. Rev. D, 51:6228 (1995) 
- 
								[41]
								E. Golowich and S. Pakvasa, Phys. Lett. B, 205:393 (1988) 
- 
								[42]
								E. Golowich and S. Pakvasa, Phys. Rev. D, 51:1215 (1995) 
- 
								[43]
								J. F. Donoghue, E. Golowich, and A. A. Petrov, Phys. Rev. D, 55:2657 (1997) 
- 
								[44]
								J. J. Xie, L. R. Dai, and E. Oset, Phys. Lett. B, 742:363 (2015) 
- 
								[45]
								H. Nagahiro, L. Roca, A. Hosaka, and E. Oset, Phys. Rev. D, 79:014015 (2009) 
- 
								[46]
								H. Nagahiro, J. Yamagata-Sekihara, E. Oset, S. Hirenzaki, and R. Molina, Phys. Rev. D, 79:114023 (2009) 
- 
								[47]
								M. Wirbel, B. Stech, and M. Bauer, Z. Phys. C, 29:637 (1985) M. Bauer, B. Stech, and M. Wirbel, Z. Phys. C, 34:103 (1987)