TY - JOUR
T1 - Instability of Higgs vacuum via string cloud
AU - Koga, Issei
AU - Kuroyanagi, Sachiko
AU - Ookouchi, Yutaka
N1 - Funding Information:
IK and YO are grateful to the Yukawa Institute for Theoretical Physics at Kyoto University, where the first stage of this work was done during the YITP-W-19-05 on “Progress in Particle Physics 2019” and YITP-W-19-10 on “Strings and Fields 2019”. SK is partially supported by JSPS KAKENHI No. 17K14282 and Career Development Project for Researchers of Allied Universities . YO is supported by JSPS KAKENHI Grant (No. 17K05419 and No. 18H01214 ) and Qdai-jump Research Program of Kyushu University (No. 01300 ). Appendix A
Funding Information:
IK and YO are grateful to the Yukawa Institute for Theoretical Physics at Kyoto University, where the first stage of this work was done during the YITP-W-19-05 on ?Progress in Particle Physics 2019? and YITP-W-19-10 on ?Strings and Fields 2019?. SK is partially supported by JSPS KAKENHI No. 17K14282 and Career Development Project for Researchers of Allied Universities. YO is supported by JSPS KAKENHI Grant (No. 17K05419 and No. 18H01214) and Qdai-jump Research Program of Kyushu University (No. 01300).
Publisher Copyright:
© 2019 The Authors
PY - 2020/1/10
Y1 - 2020/1/10
N2 - 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.
AB - 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.
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U2 - 10.1016/j.physletb.2019.135093
DO - 10.1016/j.physletb.2019.135093
M3 - Article
AN - SCOPUS:85076568850
SN - 0370-2693
VL - 800
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
M1 - 135093
ER -