Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-04-06
Phys.Lett.B353:257-266,1995
Physics
High Energy Physics
High Energy Physics - Phenomenology
23 pages, Latex + pssfig.sty, 9 uuencoded tar-compressed figures in file fig.uu
Scientific paper
10.1016/0370-2693(95)00572-3
Depending on the Higgs-boson and top-quark masses, $M_H$ and $M_t$, the effective potential of the Standard Model at finite (and zero) temperature can have a deep and unphysical stable minimum $\langle \phi(T)\rangle$ at values of the field much larger than $G_F^{-1/2}$. We have computed absolute lower bounds on $M_H$, as a function of $M_t$, imposing the condition of no decay by thermal fluctuations, or quantum tunnelling, to the stable minimum. Our effective potential at zero temperature includes all next-to-leading logarithmic corrections (making it extremely scale-independent), and we have used pole masses for the Higgs-boson and top-quark. Thermal corrections to the effective potential include plasma effects by one-loop ring resummation of Debye masses. All calculations, including the effective potential and the bubble nucleation rate, are performed numerically, and so the results do not rely on any kind of analytical approximation. Easy-to-use fits are provided for the benefit of the reader. Conclusions on the possible Higgs detection at LEP-200 are drawn.
Espinosa Jose Ramon
Quiros Mariano
No associations
LandOfFree
IMPROVED METASTABILITY BOUNDS ON THE STANDARD MODEL HIGGS MASS does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with IMPROVED METASTABILITY BOUNDS ON THE STANDARD MODEL HIGGS MASS, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IMPROVED METASTABILITY BOUNDS ON THE STANDARD MODEL HIGGS MASS will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-239994