GM2Calc: precise MSSM prediction for $$(g-2)$$(g-2) of the muon
GM2Calc: precise MSSM prediction for $$(g-2)$$(g-2) of the muon
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DOI：
10.1140/epjc/s10052-015-3870-2
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发表时间：
2015-10
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通讯作者：
P. Athron;Markus Bach;H. Fargnoli;C. Gnendiger;R. Greifenhagen;Jae-hyeon Park;S. Paßehr;D. Stöckinger;H. Stöckinger-Kim;A. Voigt
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作者：
P. Athron;Markus Bach;H. Fargnoli;C. Gnendiger;R. Greifenhagen;Jae-hyeon Park;S. Paßehr;D. Stöckinger;H. Stöckinger-Kim;A. Voigt
我们提出了GM 2Calc，一个公共的C++程序计算MSSM的贡献的μ子的异常磁矩。该代码计算精确，考虑到最新的两个循环的修正，并通过执行计算在一个物理的壳层重整化计划。特别是该计划包括aresumulation，使它是有效的任意高的值，以及费米子/sfermion环路校正，导致非去耦效应从沉重的平方。GM 2Calc可以使用标准SLHA输入文件运行，在内部将输入转换为外壳参数。或者，输入参数可以直接在这个外壳方案中指定。在这两种情况下，输入文件都允许打开/关闭各个贡献，以研究它们的相对影响。本文还提供了典型的使用例子，不仅结合频谱发生器和绘图程序，而且作为C++子程序链接到其他程序。
We present GM2Calc, a public C++ program for the calculation of MSSM contributions to the anomalous magnetic moment of the muon,. The code computesprecisely, by taking into account the latest two-loop corrections and by performing the calculation in a physical on-shell renormalization scheme. In particular the program includes aresummation so that it is valid for arbitrarily high values of, as well as fermion/sfermion-loop corrections which lead to non-decoupling effects from heavy squarks. GM2Calc can be run with a standard SLHA input file, internally converting the input into on-shell parameters. Alternatively, input parameters may be specified directly in this on-shell scheme. In both cases the input file allows one to switch on/off individual contributions to study their relative impact. This paper also provides typical usage examples not only in conjunction with spectrum generators and plotting programs but also as C++ subroutines linked to other programs.