Desy-münster-roma Collaboration
Desy-münster-roma Collaboration
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德西-明斯特-罗马合作
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
Fisica
中科院分区：
文献类型：
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作者：
F. Farchioni;C. Gebert;R. Kirchner;I. Montvay;A. Feo;G. Münster;T. Galla;A. Vladikas;Sezione Di Roma;Di Dipartimento;Fisica
考虑了N=1 SU（2）SUSY杨米尔斯理论在威尔逊费米子（胶子）晶格上离散化的超对称（SUSY）沃德恒等式。它们被用来计算非微扰减去的胶子质量和混合系数的超对称电流。在规范耦合系数β = 2.3，跳跃参数κ = 0.1925，0.194，0.1955的情况下，采用两步多玻色子动力学费米子算法进行计算。我们的结果是一致的情况下，沃德身份是满意的O（a）的影响。胶子质量的消失发生在一个值的跳跃参数，这是不完全符合估计的基础上的手征相变。这表明，虽然超对称性恢复似乎发生在晶格理论的连续极限附近，但结果仍然受到显着的系统效应的影响。
Supersymmetric (SUSY) Ward identities are considered for the N=1 SU(2) SUSY Yang Mills theory discretized on the lattice with Wilson fermions (glu-inos). They are used in order to compute non-perturbatively a subtracted gluino mass and the mixing coefficient of the SUSY current. The computations were performed at gauge coupling β = 2.3 and hopping parameter κ = 0.1925, 0.194, 0.1955 using the two-step multi-bosonic dynamical-fermion algorithm. Our results are consistent with a scenario where the Ward identities are satisfied up to O(a) effects. The vanishing of the gluino mass occurs at a value of the hopping parameter which is not fully consistent with the estimate based on the chiral phase transition. This suggests that, although SUSY restoration appears to occur close to the continuum limit of the lattice theory, the results are still affected by significant systematic effects.