Light hadron spectrum and quark masses in QCD with two flavors of dynamical quarks

被引:0
作者
Khan, AA [1 ]
Aoki, S
Boyd, G
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 Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan
[3] Univ Tokyo, Inst Cosm Ray Res, Tanashi, Tokyo 1888502, Japan
[4] Univ Cambridge, DAMTP, Cambridge CB3 9EW, England
[5] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan
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中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
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摘要
We present updated results of the CP-PACS calculation of the light hadron spectrum in N-f = 2 full QCD. Simulations are made with an RG-improved gauge action and a tadpole-improved clover quark action for sea quark masses corresponding to m(PS)/m(V) approximate to 0.8-0.6 and the lattice spacing a = 0.22-0.09 fm. A comparison of the N-f = 2 QCD spectrum with new quenched results, obtained with the same improved action, shows clearly the existence of sea quark effects in vector meson masses. Results for Light quark masses are also presented.
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页码:176 / 178
页数:3
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