TY - JOUR
T1 - Gravitational waves from Higgs domain walls
AU - Kitajima, Naoya
AU - Takahashi, Fuminobu
N1 - Funding Information:
This work was supported by JSPS Grant-in-Aid for Young Scientists (B) (No. 24740135 [FT]), Scientific Research (A) (No. 26247042 [FT]), Scientific Research (B) (No. 26287039 [FT]), the Grant-in-Aid for Scientific Research on Innovative Areas (No. 23104008 [NK, FT]), and Inoue Foundation for Science [FT]. This work was also supported by World Premier International Center Initiative (WPI Program), MEXT , Japan [FT].
Publisher Copyright:
© 2015 Published by Elsevier B.V.
PY - 2015/5/8
Y1 - 2015/5/8
N2 - The effective potential for the Standard Model Higgs field allows two quasi-degenerate vacua; one is our vacuum at the electroweak scale, while the other is at a much higher scale. The latter minimum may be at a scale much smaller than the Planck scale, if the potential is lifted by new physics. This gives rise to a possibility of domain wall formation after inflation. If the high-scale minimum is a local minimum, domain walls are unstable and disappear through violent annihilation processes, producing a significant amount of gravitational waves. We estimate the amount of gravitational waves produced from unstable domain walls in the Higgs potential and discuss detectability with future experiments.
AB - The effective potential for the Standard Model Higgs field allows two quasi-degenerate vacua; one is our vacuum at the electroweak scale, while the other is at a much higher scale. The latter minimum may be at a scale much smaller than the Planck scale, if the potential is lifted by new physics. This gives rise to a possibility of domain wall formation after inflation. If the high-scale minimum is a local minimum, domain walls are unstable and disappear through violent annihilation processes, producing a significant amount of gravitational waves. We estimate the amount of gravitational waves produced from unstable domain walls in the Higgs potential and discuss detectability with future experiments.
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U2 - 10.1016/j.physletb.2015.04.040
DO - 10.1016/j.physletb.2015.04.040
M3 - Article
AN - SCOPUS:84928592278
SN - 0370-2693
VL - 745
SP - 112
EP - 117
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -