Non-perturbative improvement of the axial current for dynamical Wilson fermions

Non-perturbative improvement of the axial current for dynamical Wilson fermions
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动态威尔逊费米子轴向电流的无扰改进

DOI:
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
R. Sommer
R. Sommer
中科院分区:
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文献类型:
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作者:
M. Morte;R. Hoffmann;R. Sommer

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轴向电流改进系数 cA 的非扰动测定是通过两种动态改进的威尔逊费米子和血小板规范作用来执行的。改进条件是用薛定谔功能边界条件制定的,并在恒定的物理体积下强制执行。通过在PCAC关系中使用两种不同的赝标量状态可以获得大的灵敏度。我们估计 β = 5.2 时 FPS 的修正结果约为 10%。
A non-perturbative determination of the axial current improvement coefficient cA is performed with two flavors of dynamical improved Wilson fermions and plaquette gauge action. The improvement condition is formulated with Schrodinger functional boundary conditions and enforced at constant physical volume. Large sensitivity is obtained by using two different pseudo-scalar states in the PCAC relation. We estimate the resulting correction to FPS at β = 5.2 to be around 10%.
DOI: 10.1016/j.nuclphysb.2005.02.013
发表时间: 2004-11
期刊: Nuclear Physics
影响因子: --
作者:
M. Morte;R. Frezzotti;J. Heitger;J. Rolf;R. Sommer;U. Wolff
通讯作者: M. Morte;R. Frezzotti;J. Heitger;J. Rolf;R. Sommer;U. Wolff