Fixed points and fermion mass structure from large extra dimensions
Fixed points and fermion mass structure from large extra dimensions
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大额外维度的不动点和费米子质量结构
DOI：
10.1103/physrevd.59.095010
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发表时间：
1998
影响因子：
5
通讯作者：
S. King
中科院分区：
文献类型：
--
作者：
S. Abel;S. King
我们研究了不同维数的超对称理论中汤川耦合的不动点行为。我们证明了Pendleton-Ross不动点行为在没有额外维度和4个额外的$5+5\ifmmode\bar\else\textasciimacron\fi{}$多重态的MSSM或具有一个额外的大维度和3个额外的$5+5\ifmmode\bar\else\textasciimacron\fi{}$多重态的MSSM中被大大放大。我们还表明，幂律运行在具有大的额外维度的模型可以给出一个层次的一组准不动点的汤川耦合的方式是类似于Froggatt-Nielsen机制。然而，我们也指出了有限的扰动域的模型与幂律运行。
We examine the fixed point behavior of Yukawa couplings in supersymmetric theories with varying numbers of dimensions. We show that Pendleton-Ross fixed point behavior is greatly amplified in the MSSM with no extra dimensions and 4 extra $5+5\ifmmode\bar\else\textasciimacron\fi{}$ multiplets or the MSSM with one extra large dimension and 3 extra $5+5\ifmmode\bar\else\textasciimacron\fi{}$ multiplets. We also show that power law running in models with large extra dimensions can give a hierarchical set of quasi-fixed points for the Yukawa couplings in a manner which is similar to the Froggatt-Nielsen mechanism. However, we also point out the limited perturbative domain in models with power law running.