Heavy-light decay constants from clover heavy quark action in QCD with two flavors of dynamical quarks

被引:0
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作者
Khan, AA [1 ]
Aoki, S
Burkhalter, R
Ejiri, S
Fukugita, M
Hashimoto, S
Ishizuka, N
Iwasaki, Y
Kanaya, K
Kaneko, T
Kuramashi, Y
Manke, T
Nagai, K
Okawa, M
Shanahan, HP
Ukawa, A
Yoshié, T
机构
[1] Univ Tsukuba, Ctr Computat Phys, Tsukuba, Ibaraki 3058577, Japan
[2] Univ Tokyo, Inst Cosm Ray Res, Tanashi, Tokyo 1888502, Japan
[3] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan
[4] Univ Cambridge, DAMTP, Cambridge CB3 9EW, England
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O412 [相对论、场论]; O572.2 [粒子物理学];
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摘要
We present results on an analysis of the decay constants f(Bd) and f(Bs) 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 detailed comparison with a quenched calculation using the same action is made to elucidate the effects due to the sea quarks.
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页码:331 / 333
页数:3
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