TY - JOUR
T1 - Gravitational waves from Higgs domain walls
AU - Kitajima, Naoya
AU - Takahashi, Fuminobu
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.
UR - http://www.scopus.com/inward/record.url?scp=84928592278&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84928592278&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2015.04.040
DO - 10.1016/j.physletb.2015.04.040
M3 - Article
AN - SCOPUS:84928592278
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
SN - 0370-2693
ER -