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 |
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| 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 |
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