TY - JOUR
T1 - Stabilization of the electroweak vacuum by a scalar threshold effect
AU - Elias-Miró, Joan
AU - Espinosa, José R.
AU - Giudice, Gian F.
AU - Lee, Hyun Min
AU - Strumia, Alessandro
PY - 2012/1/1
Y1 - 2012/1/1
N2 - We show how a heavy scalar singlet with a large vacuum expectation value can evade the potential instability of the Standard Model electroweak vacuum. The quartic interaction between the heavy scalar singlet and the Higgs doublet leads to a positive tree-level threshold correction for the Higgs quartic coupling, which is very effective in stabilizing the potential. We provide examples, such as the see-saw, invisible axion and unitarized Higgs inflation, where the proposed mechanism is automatically implemented in well-defined ranges of Higgs masses.
AB - We show how a heavy scalar singlet with a large vacuum expectation value can evade the potential instability of the Standard Model electroweak vacuum. The quartic interaction between the heavy scalar singlet and the Higgs doublet leads to a positive tree-level threshold correction for the Higgs quartic coupling, which is very effective in stabilizing the potential. We provide examples, such as the see-saw, invisible axion and unitarized Higgs inflation, where the proposed mechanism is automatically implemented in well-defined ranges of Higgs masses.
KW - Beyond standard model
KW - Standard model
UR - https://www.scopus.com/pages/publications/84864340533
U2 - 10.1007/JHEP06(2012)031
DO - 10.1007/JHEP06(2012)031
M3 - Article
SN - 1126-6708
VL - 2012
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 6
M1 - 031
ER -