arXiv:hep-ph/9909398·v1·High Energy Physics — Phenomenology
Heavy-light decay constants from relativistic Nf=2,0 QCD
CP-PACS Collaboration: A. Ali Khan · S. Aoki · R. Burkhalter · S. Ejiri · M. Fukugita · S. Hashimoto · N. Ishizuka · Y. Iwasaki · K. Kanaya · T. Kaneko · Y. Kuramashi · T. Manke
Abstract
We present results on an analysis of the decay constants fB and fBs with two flavours of sea quark. The calculation has been carried out on 3 different bare gauge couplings and 4 sea quark masses at each gauge coupling, with m_pi/m_rho ranging from 0.8 to 0.6. We employ the Fermilab formalism to perform calculations with heavy quarks whose mass is in the range of the b-quark. A comparison with a quenched calculation using the same action is made to elucidate the effects due to the sea quarks.
Comments: Contribution to EPS 99, Tampere, Finland. LateX2e file, 2 pages long. Requires hep99 style files (included) and epsf. 3 Encapsulated Postscript figures. (Changed Author list.)