Quark-mass dependence of gluonic boundary conditions☆

Quark-mass dependence of gluonic boundary conditions☆
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胶子边界条件的夸克质量依赖性☆

DOI:
10.1016/0370-2693(80)90099-4
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发表时间:
1980
期刊:
影响因子:
4.4
通讯作者:
R. J. Crewther
R. J. Crewther
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
R. J. Crewther

文献摘要

被引文献

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(n2−1) 个小质量玻色子的夸克凝聚需要拓扑电荷谱 {ν} 取决于夸克质量的比率,这明显违反了手性 SU(n)×SU(n) 对称性。推导出非整数 ν 的一般条件,因此在 θ=π (mod 2π) 处有两个真空,并且 {ν} 以有理单位量化。结果表明,胶子边界条件受夸克动力学的影响。
Quark condensation with (n2−1) small-mass bosons requires the topological charge spectrum {ν} to depend on ratios of the quark masses which explicitly violate chiral SU(n)×SU(n) symmetry. General conditions are derived for non-integer ν and hence two vacua at θ=π (mod 2π), and for {ν} to be quantized in rational units. The results show that gluonic boundary conditions are influenced by quark dynamics.