Non–standard Neutrino Properties *
نویسنده
چکیده
A discussion of several exotic models and how well they are able to describe the data, with particular emphasis on atmospheric neutrinos.
منابع مشابه
Neutrino Properties Before and After KamLAND
We review neutrino oscillation physics, including the determination of mass splittings and mixings from current solar, atmospheric, reactor and accelerator neutrino data. A brief discussion is given of cosmological and astrophysical implications. Non-oscillation phenomena such as neutrinoless double beta decay would, if discovered, probe the absolute scale of neutrino mass and also reveal their...
متن کاملTest of non-standard neutrino properties with the BOREXINO source experiments
We calculate the event rates induced by high-intensity radioactive sources of νe ( 51Cr) and of ν̄e ( 90Sr), to be located near the BOREXINO detector. Calculations are performed both in the standard case and assuming non-standard properties of neutrinos, including flavor oscillations, neutrino electromagnetic interactions, and deviations from the standard vector and axial couplings in the νe-e i...
متن کاملStandard and non-standard primordial neutrinos
The standard cosmological model predicts the existence of a cosmic neutrino background (CνB) with a present density of about nν + nν̄ ≃ 110 cm per flavour, which affects big-bang nucleosynthesis (BBN), cosmic microwave background (CMB) anisotropies, and the evolution of large scale structures (LSS). We report on a precision calculation of the CνB properties including the modification introduced ...
متن کاملStandard and non-standard neutrino properties
I review the interpretation of solar and atmospheric neutrino data in terms neutrino oscillations and describe some ways to account for the required neutrino masses and mixing angles from first principles, both within topdown and bottom-up approaches. I also discuss non-oscillation phenomena such as ββ0ν which may probe the absolute scale of neutrino mass, and also reveal its Majorana nature. I...
متن کاملEffects of non-standard neutrino-electron interactions on relic neutrino decoupling
We consider the decoupling of neutrinos in the early Universe in presence of nonstandard neutral current neutrino-electron interactions (NSI). We first discuss a semi-analytical approach to solve the relevant kinetic equations and then present the results of fully numerical and momentum-dependent calculations, including flavor neutrino oscillations. We present our results in terms of both the e...
متن کاملv 1 4 N ov 1 99 6 STANDARD PHYSICS SOLUTION TO THE SOLAR NEUTRINO PROBLEM ?
The 8 B solar neutrino flux predicted by the standard solar model (SSM) is consistent within the theoretical and experimental uncertainties with that observed at Kamiokande. The Gallium and Chlorine solar neutrino experiments, however, seem to imply that the 7 Be solar neutrino flux is strongly suppressed compared with that predicted by the SSM. If the 7 Be solar neutrino flux is suppressed, st...
متن کامل