Leptonic decays of $B_{(s)}$ and $D_{(s)}$ using the OK action
Autor: | Bhattacharya, Tanmoy, Choi, Benjamin J., Gupta, Rajan, Jang, Yong-Chull, Jwa, Seungyeob, Lee, Sunkyu, Lee, Weonjong, Leem, Jaehoon, Park, Sungwoo |
---|---|
Rok vydání: | 2020 |
Předmět: | |
Zdroj: | PoS (LATTICE2019) 050 |
Druh dokumentu: | Working Paper |
Popis: | We present recent progress in the lattice calculation of leptonic decay constants for $B_{(s)}$ and $D_{(s)}$ mesons using the Oktay-Kronfeld (OK) action for charm and bottom valence quarks, whose masses are tuned non-perturbatively. The calculations are done on 6 HISQ ensembles generated by the MILC collaboration with $N_f=2+1+1$ flavors. We also use the HISQ action for the light spectator quarks. Results are presented for the ratios $f_{B_s}/f_B$ and $f_{D_s}/f_D$, which reflect $SU(3)$ flavor symmetry breaking, and are independent of the renormalization constants of the axial currents. Comment: 7 pages, 10 figures, Lattice 2019 proceeding |
Databáze: | arXiv |
Externí odkaz: |