Heavy-light mesons with staggered light quarks

被引:60
作者
Wingate, M
Shigemitsu, J
Davies, CTH
Lepage, GP
Trottier, HD
机构
[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
[2] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland
[3] Cornell Univ, Newman Lab Nucl Studies, Ithaca, NY 14853 USA
[4] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada
关键词
D O I
10.1103/PhysRevD.67.054505
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We demonstrate the viability of improved staggered light quarks in studies of heavy-light systems. Our method for constructing heavy-light operators exploits the close relation between naive and staggered fermions. The new approach is tested on quenched configurations using several staggered actions combined with nonrelativistic heavy quarks. Exploratory calculations of the B-s meson kinetic mass, the hyperfine and 1P-1S splittings in B-s, and the decay constant f(Bs) are presented and compared to previous quenched lattice studies. An important technical detail, Bayesian curve fitting, is discussed at length.
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页数:20
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