Four - Neutrino Scenarios ∗
نویسنده
چکیده
The main features of four-neutrino 3+1 and 2+2 mixing schemes are reviewed, after a discussion on the necessity of at least four massive neutrinos if the solar, atmospheric and LSND anomalies are due to neutrino oscillations.
منابع مشابه
Neutrino Masses and Mixings
Theoretical prejudices, cosmology, and neutrino oscillation experiments all suggest neutrino masses are far below present direct experimental limits. Four interesting scenarios and their implications are discussed: (I) a 17 keV v,, (2) a 30 eVv, making up the dark matter, (3) a 10e3 eVu,, 10 solve the solar neutrino problem, and (4) a three-neutrino M S W solution. @ L. Wolfenstein 1992
متن کاملShort-Baseline Neutrino Oscillations at a Neutrino Factory
Within the framework of three-neutrino and four-neutrino scenarios that can describe the results of the LSND experiment, we consider the capabilities of short baseline neutrino oscillation experiments at a neutrino factory. We find that, when short baseline (L ∼ 100 km) neutrino factory measurements are used together with other accelerator-based oscillation results, the complete three-neutrino ...
متن کاملTelling Three from Four Neutrino Scenarios
In this talk I will consider the possibility of distinguish the usual three neutrino model from scenarios in which a light sterile neutrino is also present. I will show that the confusion with the so-called 3+1 scheme can arise in some particular region of the parameter space whereas it is essentially absent for the 2+2 scheme. Then I will discuss the ambiguities in the determination of the CP-...
متن کاملFour Neutrino Mass Spectra at the Neutrino Factory a
We study the physical reach of a Neutrino Factory in the 2+2 and 3+1 Four Neutrino mixing scenarios, with similar results for the sensitivity to the mixing angles. Huge CP-violating effects can be observed in both schemes with a near, O(10) Km, detector of O(10) Kton size in the νµ → ντ channel. A smaller detector of 1 Kton size can still observe very large effects in this channel.
متن کاملFour-neutrino Oscillation Solutions of the Atmospheric Neutrino Anomaly Typeset Using Revt E X 1
In the context of neutrino scenarios characterized by four (three active plus one sterile) neutrino species and by mass spectra with two separated doublets, we analyze solutions to the atmospheric neutrino anomaly which smoothly interpolate between ν µ → ν τ and ν µ → ν s oscillations. We show that, although the Super-Kamiokande data disfavor the pure ν µ → ν s channel, they do not exclude its ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2000