Running of the coupling and quark mass in SU(2) with two adjoint fermions

Running of the coupling and quark mass in SU(2) with two adjoint fermions
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SU(2) 中两个伴随费米子的耦合和夸克质量的运行

DOI:
10.22323/1.091.0056
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发表时间:
2009
期刊:
arXiv: High Energy Physics - Phenomenology
影响因子:
--
通讯作者:
T. Pickup
T. Pickup
中科院分区:
--
文献类型:
--
作者:
F. Bursa;L. Debbio;L. Keegan;C. Pica;T. Pickup

文献摘要

被引文献

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我们在伴随表象中模拟了具有两个无质量狄拉克费米子的SU(2)规范理论。我们计算了运行的薛定谔泛函耦合和重整化夸克质量在很宽的长度尺度。耦合的运行与红外固定点(IRFP)的存在是一致的,并且我们在IRFP处发现0.07 < gamma < 0.56,取决于临界耦合的值。
We simulate SU(2) gauge theory with two massless Dirac fermions in the adjoint representation. We calculate the running of the Schroedinger Functional coupling and the renormalised quark mass over a wide range of length scales. The running of the coupling is consistent with the existence of an infrared fixed point (IRFP), and we find 0.07 < gamma < 0.56 at the IRFP, depending on the value of the critical coupling.