Vortons with Abelian and non-Abelian currents and their stability

被引:1
|
作者
Tallarita, Gianni Y. [1 ]
Peterson, Adam [2 ]
Bolognesi, Stefano [3 ,4 ]
Bedford, Peter [2 ]
机构
[1] Univ Adolfo Ibanez, Fac Artes Liber, Dept Ciencias, Santiago 7941169, Chile
[2] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada
[3] Univ Pisa, Dept Phys E Fermi, 3 Ed C, I-56127 Pisa, Italy
[4] INFN, Sez Pisa Largo Pontecorvo, 3 Ed C, I-56127 Pisa, Italy
来源
EUROPEAN PHYSICAL JOURNAL C | 2020年 / 80卷 / 01期
基金
加拿大自然科学与工程研究理事会;
关键词
COSMIC VORTONS; VORTICES;
D O I
10.1140/epjc/s10052-019-7540-7
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We explore vorton solutions in the Witten's U(1)xU(1) model for cosmic strings and in a modified version U(1)xSO(3) obtained by introducing a triplet of non-Abelian fields to condense inside the string. We restrict to the case in which the unbroken symmetry in the bulk remains global. The vorton solutions are found numerically for certain choices of parameters and compared with an analytical solutions obtained in the thin vorton limit. We also discuss the vorton decay into Q-rings (or spinning Q-balls) and, to some extent, the time dependent behavior of vortons above the charge threshold.
引用
收藏
页数:12
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