calculation of B → D*lv form factor at zero recoil using the Oktay-Kronfeld action Jon A. Bailey, Tanmoy Bhattacharya, Rajan Gupta, Yong-Chull Jang, Weonjong Lee, Jaehoon Leem, Sungwoo Park and Boram Yoon EPJ Web Conf., 175 (2018) 13012 Published online: 26 March 2018 DOI: 10.1051/epjconf/201817513012