Instability of Higgs vacuum via string cloud
Instability of Higgs vacuum via string cloud
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DOI：
10.1016/j.physletb.2019.135093
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发表时间：
2019-10
影响因子：
4.4
通讯作者：
Issei Koga;S. Kuroyanagi;Yutaka Ookouchi
中科院分区：
文献类型：
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作者：
Issei Koga;S. Kuroyanagi;Yutaka Ookouchi
我们研究了由弦云引起的希格斯真空的不稳定性。在催化作用下，真空的衰变速率大大增强，当云的能量密度大于临界值时，真空发生半经典衰变。我们还讨论了弦云和宇宙弦的观测约束之间的关系，从催化的角度来看，这是转换为希格斯势的参数的界限。
We study the instability of the Higgs vacuum caused by a cloud of strings. By catalysis, the decay rate of the vacuum is highly enhanced and, when the energy density of the cloud is larger than the critical value, a semi-classical vacuum decay occurs. We also discuss the relation between the string cloud and observational constraints on the cosmic strings from the viewpoint of the catalysis, which are converted into bounds on the parameters of the Higgs potential.