Lattice Lattice study of “f0 (600) or σ”
Lattice Lattice study of “f0 (600) or σ”
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晶格 “f0 (600) 或 σ” 的晶格研究
DOI：
10.1016/s0920-5632(03)01530-5
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发表时间：
2002
影响因子：
4.4
通讯作者：
H. Wada
中科院分区：
文献类型：
--
作者：
T. Kunihiro;S. Muroya;A. Nakamura;C. Nonaka;M. Sekiguchi;H. Wada
我们用Wilson费米子的全QCD模拟研究了”f（600）or the”的传播子。我们在晶格上计算了I= 0的介子关联子。采用Plaquet作用量和Wilson费米子作用量。耦合常数设为4.8，并测定了三种跳变参数= 0.1846，0.1874和0.1891。通过对500或1000个Z2噪声取平均来评估传播器中的断开图。具有较大跳变参数的仿真为我们提供了较少的噪声结果。虽然统计还不够，我们的结果表明，存在一个极的质量在几乎相同的顺序。
We investigate the propagator of" f(600) or the" by the full-QCD simulation with Wilson fermions. We calculate the mesonic correlator in the I= 0,channel on thelattice. Plaquet action and Wilson fermion action are adopted. A coupling constantis set to 4.8 and three kinds of hopping parameter,= 0.1846, 0.1874 and 0.1891 are assayed. The disconnected diagram in the propagator is evaluated through taking average over 500 or 1000 Z2 noise. Simulations with the larger hopping parameter provide us with less noisy results. Though the statistics is not yet enough, our results indicate the existence of a pole with a mass in almost the same order as that of the.