منابع مشابه
Planck scale effects in neutrino physics.
We study the phenomenology and cosmology of the Majoron (flavon) models of three active and one inert neutrino paying special attention to the possible (almost) conserved generalization of the Zeldovich-Konopinski-Mahmoud lepton charge. Using Planck scale physics effects which provide the breaking of the lepton charge, we show how in this picture one can incorporate the solutions to some of the...
متن کاملPlanck-scale physics and neutrino masses.
We discuss gravitationally induced masses and mass splittings of Majorana, Zeldovich-Konopinski-Mahmoud and Dirac neutrinos. Among other implications, these effects can provide a solution of the solar neutrino puzzle. In particular, we show how this may work in the 17 keV neutrino picture. E-mail: [email protected], [email protected] Alexander von Humboldt Fellow E-mail: [email protected]...
متن کاملTeV physics and the Planck scale
Supersymmetry is one of the best motivated possibilities for new physics at the TeV scale. However, both concrete string constructions and phenomenological considerations suggest the possibility that the physics at the TeV scale could be more complicated than the Minimal Supersymmetric Standard Model (MSSM), e.g., due to extended gauge symmetries, new vector-like supermultiplets with non-standa...
متن کاملPlanck Scale Symmetry Breaking and Majoron Physics
Majoron models provide neutrino masses via the spontaneous breaking of a global U(1) symmetry. However, it may be argued that all global symmetries will be explicitly violated by gravita-tional effects. We show that it is possible to preserve most of the usual features of majoron models by invoking U(1) B−L to be a gauge symmetry and adding a second singlet scalar field. The majoron gets a smal...
متن کاملHigher-Dimensional Algebra and Planck-Scale Physics
This is a nontechnical introduction to recent work on quantum gravity using ideas from higher-dimensional algebra. We argue that reconciling general relativity with the Standard Model requires a ‘background-free quantum theory with local degrees of freedom propagating causally’. We describe the insights provided by work on topological quantum field theories such as quantum gravity in 3-dimensio...
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: Physical Review D
سال: 1993
ISSN: 0556-2821
DOI: 10.1103/physrevd.47.3245