论文标题
使用相对论重夸克
B Meson Decay Constants Using Relativistic Heavy Quarks
论文作者
论文摘要
我们提出了正在进行的工作的最新信息，以提取$ b^{（*）} $，$ b^{（*）} _ s $和$ b^{（*）_ c $ mesons，并确定现象学上相关的率，例如$ f_ {b_s}/f_ b^$ f_b $ f_b $ f_b $ f_b $ f_b b^b^b^*b^b^b^*b^*b^*b^*b^b^*b^*b^b^*我们的计算基于$ {\ rm n_f} = 2+1 $动力学量表场合集合，由RBC/UKQCD协作生成，使用域壁费米子和Iwasaki Gauge Action生成。使用域壁灯，奇怪和魅力夸克和相对论$ b $ quarks，我们在多个晶格间距和价值夸克群众中获得结果。
We present an update on ongoing work to extract pseudoscalar and vector decay constants for $B^{(*)}$, $B^{(*)}_s$ and $B^{(*)}_c$ mesons and determine phenomenologically-interesting ratios such as $f_{B_s}/f_B$ or $f_{B^*}/f_B$. Our calculation is based on ${\rm N_f}=2+1$ dynamical flavour gauge field ensembles generated by the RBC/UKQCD collaborations using domain-wall fermions and the Iwasaki gauge action. Using domain-wall light, strange, and charm quarks and relativistic $b$ quarks, we obtain results at multiple lattice spacings and valence quark masses.
