@inproceedings{Nakayama:2020U2, author = "Nakayama, Katsumasa and Ishikawa, Tsutomu and Hashimoto, Shoji", title = "{Charmonium contribution to $B \to K l^+l^-$: testing the factorization approximation on the lattice}", doi = "10.22323/1.363.0062", booktitle = "Proceedings of 37th International Symposium on Lattice Field Theory {\textemdash} PoS(LATTICE2019)", year = 2020, volume = "363", pages = "062" }