• [1]

    Y. Amhis et al, Eur. Phys. J. C, 77: 895 (2017)

  • [2]

    A. Abdesselam et al, arXiv: 1904.08794[hep-ex]

  • [3]

    G. Caria, Measurement of \begin{document}$R(D)$\end{document} and \begin{document}$R(D.*)$\end{document} with a semileptonic tag at Belle, talk presented at Moriond EW, 16-23 Mar 2019, La Thuile, Italy

  • [4]

    G. Caria et al, arXiv: 1910.05864[hep-ex]

  • [5]

    Y. Amhis et al, arXiv: 1909.12524v2[hep-ex]; and references therein

  • [6]

    S. Fajfer, J. F. Kamenik, I. Nisandzic et al, Phys. Rev. Lett., 109: 161801 (2012)

  • [7]

    Y. Y. Fan, W. F. Wang, S. Cheng et al, Chin. Sci. Bull., 59: 125 (2014)

  • [8]

    Z. J. Xiao, Y. Y. Fan, W. F. Wang et al, Chin. Sci. Bull., 59: 3787 (2014), and references therein

  • [9]

    F. U. Bernlochner, Z. Ligeti, M. Papucci et al, Phys. Rev. D, 95: 115008 (2017)

  • [10]

    D. Bigi, P. Gambino, and S. Schacht, JHEP, 1711: 061 (2017)

  • [11]

    X. Q. Li, Y. D. Yang, and X. Zhang, JHEP, 08: 054 (2016)

  • [12]

    K. Adamczyk. Germany; arXiv: 1901.06380[hep-ex]

  • [13]

    S. Fajfer, EPJ Web Conf., 192: 00025 (2018)

  • [14]

    F. Abe et al (CDF Collaboration), Phys. Rev. D, 58: 112004 (1998)

  • [15]

    M. Tanabashi et al (Particle Data Group), Phys. Rev. D, 98: 030001 (2018)

  • [16]

    R. Aaij et al (LHCb Collaboration), Phys. Rev. Lett., 118: 111803 (2017)

  • [17]

    R. Aaij et al (LHCb Collaboration), Phys. Rev. Lett., 120: 121801 (2018)

  • [18]

    J. F. Cheng, D. S. Du, and C. D. Lu, Eur. Phys. J. C, 45: 711 (2006)

  • [19]

    W. F. Wang, Y. Y. Fan, and Z. J. Xiao, Chin. Phys. C, 37: 093102 (2013)

  • [20]

    Y. Li, C. D. Lu, and C. F. Qiao, Phys. Rev. D, 73: 094006 (2006)

  • [21]

    T. Huang and F. Zuo, Eur. Phys. J. C, 51: 833 (2007)

  • [22]

    W. Wang, Y. L. Shen, and C. D. Lu, Phys. Rev. D, 79: 054012 (2009)

  • [23]

    C. F. Qiao and R. L. Zhu, Phys. Rev. D, 87: 014009 (2013)

  • [24]

    A. Abd El-Hady, J. H. Munoz, and J. P. Vary, Phys. Rev. D, 62: 014019 (2000)

  • [25]

    M. A. Nobes and R. M. Woloshyn, J. Phys. G, 26: 1079 (2000)

  • [26]

    D. Ebert, R. N. Faustov, and V. O. Galkin, Phys. Rev. D, 68: 094020 (2003)

  • [27]

    D. Ebert, R. N. Faustov, and V. O. Galkin, Phys. Rev. D, 82: 034032 (2010)

  • [28]

    V. V. Kiselev and A. V. Tkabladze, Phys. Rev. D, 48: 5208 (1993)

  • [29]

    V. V. Kiselev, A. K. Likhoded, and A. I. Onishchenko, Nucl. Phys. B, 569: 473 (2000)

  • [30]

    E. Hernandez, J. Nieves, and J. M. Verde-Velasco, Phys. Rev. D, 74: 074008 (2006)

  • [31]

    P. Colangelo, G. Nardulli, and N. Paver, Z. Phys. C, 57: 43 (1993)

  • [32]

    D. Leljak, B. Melic, and M. Patra, JHEP, 05: 094 (2019)

  • [33]

    M. A. Ivanov, J. G. Korner, and P. Santorelli, Phys. Rev. D, 71: 094006 (2005); Erratum: [ Phys. Rev. D, 75: 019901 (2007)]

  • [34]

    H. W. Ke, T. Liu, and X. Q. Li, Phys. Rev. D, 89: 017501 (2014)

  • [35]

    C. T. Tran, M. A. Ivanov, J. G. Korner et al, Phys. Rev. D, 97: 054014 (2018)

  • [36]

    C. H. Chang and Y. Q. Chen, Phys. Rev. D, 49: 3399 (1994)

  • [37]

    C. F. Qiao, P. Sun, and Feng Yuan, JHEP, 1208: 087 (2012)

  • [38]

    J. M. Shen, X. G. Wu, H. H. Ma et al, Phys. Rev. D, 90: 034025 (2014)

  • [39]

    R. Zhu, Y. Ma, X. L. Han et al, Phys. Rev. D, 95: 094012 (2017)

  • [40]

    T. D. Cohen, H. Lamm, and R.F. Lebed (Model-independent bounds on $R(J/\psi)$ ), JHEP, 1809: 168 (2018)

  • [41]

    A. Berns and H. Lamm, JHEP, 1812: 114 (2018)

  • [42]

    C.W. Murphy and A. Soni, Phys. Rev. D, 98: 094026 (2018)

  • [43]

    W. Wang and R. L. Zhu, arXiv: 1808.10830[hep-ph]

  • [44]

    B. Colquhoun et al (HPQCD Collaboration), PoS LATTICE, 2016: 281 (2016), arXiv:1611.01987[hep-lat

  • [45]

    A. Lytle al (HPQCD Collaboration), PoS BEAUTY, 2016: 069 (2016), arXiv:1605.05645[hep-lat

  • [46]

    A. Lytle (HPQCD Collaboration), talk given at Lattice 2017, Granada, Spain, June 20, 2017

  • [47]

    Zhou Rui, H. Li, G. X. Wang et al, Eur. Phys. J. C, 76: 564 (2016)

  • [48]

    R. Dutta and A. Bhol, Phys. Rev. D, 96: 076001 (2017)

  • [49]

    H.n. Li and H. L. Yu, Phys. Lett. B, 353: 301 (1995)

  • [50]

    C. D. Lu, K. Ukai, and M.Z. Yang, Phys. Rev. D, 63: 074009 (2001)

  • [51]

    X. Liu, H.n. Li, and Z. J. Xiao, Phys. Rev. D, 97: 113001 (2018)

  • [52]

    C. Bourrely, I. Caprini, and L. Lellouch, Phys. Rev. D, 79: 013008 (2009). [Erratum ibid. 82, 099902(2010)]

  • [53]

    S. Hirose et al (Belle Collaboration), Phys. Rev. Lett., 118: 211801 (2017)

  • [54]

    H.n. Li, Phys. Rev. D, 52: 3958 (1995)

  • [55]

    T. Kurimoto, H.n. Li, and A. I. Sanda, Phys. Rev. D, 65: 014007 (2001)

  • [56]

    T. Kurimoto, H.n. Li, and A. I. Sanda, Phys. Rev. D, 67: 054028 (2003)

  • [57]

    T. W. Chiu et al (TWQCD Collaboration), Phys. Lett. B, 651: 171 (2007)

  • [58]

    M. Beneke and Th. Feldmann, Nucl. Phys. B, 592: 3 (2001)

  • [59]

    R. H. Li, C. D. Lü, and H. Zou, Phys. Rev. D, 78: 014018 (2008)

  • [60]

    R. Dhir and R. C. Verma, Phys. Rev. D, 79: 034004 (2009)

  • [61]

    A. Bharucha, T. Feldmann, and M. Wick, JHEP, 09: 090 (2010)

  • [62]

    Y.Y. Fan, Z. J. Xiao, R. M. Wang et al, Sci. Bull., 60: 2009 (2015)

  • [63]

    M. Tanaka and R. Watanabe, Phys. Rev. D, 82: 034027 (2010)

  • [64]

    M. Tanaka and R. Watanabe, Phys. Rev. D, 87: 034028 (2013)

  • [65]

    Y. Sakaki, R. Watanabe, M. Tanaka et al, Phys. Rev. D, 88: 094012 (2013)

  • [66]

    A. Abdesselam et al (Belle Collaboration), BELLE-CONF-1608, arXiv: 1608.06391[hep-ex]

  • [67]

    S. Hirose et al (Belle Collaboration), Phys. Rev. D, 97: 012004 (2018)

  • [68]

    A. Abdesselam et al (Belle Collaboration), arXiv: 1903. 03102[hep-ex]

  • [69]

    Z. R. Huang, Y. Li, C. D. Lü et al, Phys. Rev. D, 98: 095018 (2018)

  • [70]

    S. Bhattacharya, S. Nandi, and S. K. Patra, Eur. Phys. J. C, 79: 268 (2019)

  • [71]

    I. S. Gradshteyn and I. M. Ryzhik, Series, and Products: 8th Edition, Academic Press, 2015