منابع مشابه
Axions and Their Relatives
A review of the status of axions and axion-like particles is given. Special attention is devoted to the recent results of the PVLAS collaboration, which are in conflict with the CAST data and with the astrophysical constraints. Solutions to the puzzle and the implications for new physics are discussed. The question of axion-like particles being dark matter is also addressed.
متن کاملSupersymmetry, Axions and Cosmology
Various authors have noted that in particular models, the upper bound on the axion decay constant may not hold. We point out that within supersymmetry, this is a generic issue. For large decay constants, the cosmological problems associated with the axion’s scalar partner are far more severe than those of the axion. We survey a variety of models, both for the axion multiplet and for cosmology, ...
متن کاملAxions and stars.
The emission of light, noninteracting particles, such as axions and majorons, modifies the structure and evolution of stars. We show that the main effects of such an energy loss are to raise the central temperature and luminosity of stars -i and to reduce their main sequence lifetimes. The concordance of the standard model of the sun with observations yields a self-consistent bound on the coupl...
متن کاملThermal inflation, baryogenesis and axions
In a previous paper, we proposed a simple extension of the Minimal Supersymmetric Standard Model which gives rise to thermal inflation and baryogenesis in a natural and remarkably consistent way. In this paper, we consider the λφ = 0 special case of our model, which is the minimal way to incorporate a Peccei-Quinn symmetry. The axino/flatino becomes the lightest supersymmetric particle with mã ...
متن کاملNon-Abelian Strings and Axions
We address two distinct but related issues: (i) the impact of (two-dimensional) axions in a two-dimensional theory known to model confinement, the CP (N−1) model; (ii) bulk axions in four-dimensional Yang–Mills theory supporting non-Abelian strings. In the first case n, n̄ kinks play the role of “quarks.” They are known to be confined. We show that introduction of axions leads to deconfinement (...
متن کاملذخیره 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: International Journal of Modern Physics A
سال: 2018
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x1845001x