Opening the Rome-Southampton window for operator mixing matrices
Opening the Rome-Southampton window for operator mixing matrices
复制标题
打开用于算子混合矩阵的罗马-南安普顿窗口
DOI:
10.1103/physrevd.85.014501
复制
发表时间:
2012
影响因子:
5
通讯作者:
Arthur R
中科院分区:
文献类型:
--
作者:
Arthur R
We show that the running of operators which mix under renormalization can be computed fully nonperturbatively as a product of continuum step-scaling matrices. These step-scaling matrices are obtained by taking the “ratio” ofmatrices computed at different energies in an RI-MOM type scheme for which twisted boundary conditions are an essential ingredient. Our method allows us to relax the bounds of the Rome-Southampton window. We also explain why such a method is important in view of the light quark physics program of the RBC-UKQCD Collaborations. To illustrate our method, usingdomain-wall fermions, we compute the nonperturbative running matrix of four-quark operators needed indecay and neutral kaon mixing. Our results are then compared to perturbation theory.
登录
查看更多内容
DOI:
10.1016/s0550-3213(99)00036-x
发表时间:
1998
期刊:
Nuclear Physics
影响因子:
--
作者:
M. Gockeler;R. Horsley;H. Oelrich;H. Perlt;D. Petters;P. Rakow;A. Schafer;G. Schierholz;A. Schiller
通讯作者:
A. Schiller
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
C. Lehner;C. Sturm
通讯作者:
C. Sturm
DOI:
10.1016/0920-5632(95)00396-q
发表时间:
1993
期刊:
Nuclear Physics
影响因子:
--
作者:
S. Sint
通讯作者:
S. Sint
影响因子:
5
作者:
P. Vranas
通讯作者:
P. Vranas
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
P. Boyle;Dong Chen;N. Christ;M. Clark;Saul D. Cohen;C. Cristian;Z. Dong;A. Gara;B. Joó;C. Jung;C. Kim;L. Levkova;X. Liao;G. Liu;S. Li;Huey;R. Mawhinney;S. Ohta;K. Petrov;T. Wettig;A. Yamaguchi
通讯作者:
A. Yamaguchi