论文标题
轴子弦，域墙和重子
Axionic Strings, Domain Walls and Baryons
论文作者
论文摘要
当轴支弦带有全局电荷时，可能不允许被这种字符串界定的域壁完全腐烂。这特别是在某些模型中发生的，在某些模型中，类似复合轴的粒子是手性夸克风味的手性对称性破坏的伪nambu-goldstone玻色子。在这种情况下，全球对称性是额外的风味重型对称性。相应的轴突域墙壁可以带有重型电荷：它们代表了额外的夸克风味制成的重子的低能量描述。讨论了这些颗粒的基本特性，例如自旋，质量尺寸，大小。在特定可计算的模型中明确构造并研究了相应的带电轴子字符串。
When axionic strings carry a global charge, domain walls bounded by such strings may not be allowed to decay completely. This happens in particular in some models where a composite axion-like particle is the pseudo-Nambu-Goldstone boson of chiral symmetry breaking of an extra quark flavor. In this case the global symmetry is the extra flavor baryonic symmetry. The corresponding axionic domain walls can carry a baryonic charge: they represent the low energy description of the baryons made by the extra quark flavor. Basic properties of these particles, such as spin, mass scale, size are discussed. The corresponding charged axionic strings are explicitly constructed and studied in a specific calculable model.
