Vacuum tunneling and periodic structure in lattice Higgs models

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Vacuum Tunneling and Periodic Structure in Lattice Higgs Models

Using a geometric definition for the lattice Chern-Simons term in even dimensions, we have studied the distribution of Chern-Simons numbers for the 2d-U(1) and the 4d-SU(2) lattice Higgs models. The periodic structure of the distributions is preserved in our lattice formulation and has been examined in detail. In both cases the finite size effects visible in the distribution of Chern-Simons num...

متن کامل

Vacuum Stability in two-Higgs doublet models

In this work we review the status of tree-level vacuum stability in general two-Higgs doublet models. We also discuss the problem of Normal minima in some classes of potentials. In some of these potentials, Normal minima can coexist leading to potentially dangerous physic scenarios as, for instance, a two step spontaneous symmetry breaking.

متن کامل

Vacuum structure and dynamical symmetry breaking in gauge-Higgs unification models

We study the vacuum structure and dynamical symmetry breaking in the gaugeHiggs unification of the 5D theory compactified on an orbifold, S/Z2. This theory identifies Wilson line degrees of freedoms as “Higgs doublets”. We consider SU(3)c × SU(3)W and SU(6) models with the compactification scale of order a few TeV. The gauge symmetries are reduced to SU(3)c × SU(2)L × U(1)Y and SU(3)c × SU(2)L ...

متن کامل

A THEORY OF VACUUM TUNNELING MICROSCOPY1

A theory for tunneling between a real surface and a model probe tip, applicable to the "scanning tunneling microscope" is presented. The tunneling current is found to be proportional to the local density of states of the surface, at the position of the tip. It can be shown that the tunneling conductance has exponential dependence on the distance of the nearest approach to the surface

متن کامل

Stability of the normal vacuum in multi-Higgs-doublet models

A. Barroso, P. M. Ferreira, R. Santos, and João P. Silva 3 Centro de F́ısica Teórica e Computacional, Faculdade de Ciências, Universidade de Lisboa, Av. Prof. Gama Pinto 2, 1649-003 Lisboa, Portugal Instituto Superior de Engenharia de Lisboa, Rua Conselheiro Emı́dio Navarro, 1900 Lisboa, Portugal Centro de F́ısica Teórica de Part́ıculas, Instituto Superior Técnico, P-1049-001 Lisboa, Portugal (Date...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Nuclear Physics B

سال: 1993

ISSN: 0550-3213

DOI: 10.1016/0550-3213(93)90012-e