Maximum entropy analysis of hadron spectral functions and excited states in quenched lattice QCD

被引：0
|
作者：
Aoki, S [1 ]
Burkhalter, R
Fukugita, M
Hashimoto, S
Ishizuka, N
Iwasaki, Y
Kanaya, K
Kaneko, T
Kuramashi, Y
Okawa, M
Taniguchi, Y
Ukawa, A
Yamazaki, T
Yoshié, T
机构：
[1] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan
[2] Univ Tsukuba, Ctr Computat Phys, Tsukuba, Ibaraki 3058577, Japan
[3] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan
[4] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2002年 / 106卷
关键词：
D O I：
10.1016/S0920-5632(01)01673-5
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Employing the maximum entropy method we extract the spectral functions from meson correlators at four lattice spacings in quenched QCD with the Wilson quark action. We confirm that the masses and decay constants, obtained from the position and the area of peaks; agree well with the results from the conventional exponential fit. For the first excited state, we obtain m(pi1) = 660(590) MeV, m(rho2) = 1540(570) MeV1 and f(rho1) = 0.085(36) in the continuum limit.
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页码：233 / 235
页数：3
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