ar X iv : h ep - p h / 96 11 38 3 v 3 8 A pr 1 99 7 Can we distinguish Majorana and Dirac neutrinos in solar neutrino experiments ?

نویسنده

  • V. B. Semikoz
چکیده

If neutrino conversions within the Sun result in partial polarization of initial solar neutrino fluxes then a new opportunity to distinguish Majorana and Dirac neutrinos by measuring the differential ν e e-scattering cross section in solar neutrino detectors arises. The experiment like HELLAZ would be preferable in testing of recoil electron spectra differences initiated by Majorana and Dirac neutrinos since low energy recoil electrons (T ≥ 100 keV) can be detected and electron energy and direction can be determined with good precision.

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ar X iv : h ep - p h / 96 11 38 3 v 1 2 1 N ov 1 99 6 Preprint

If neutrino conversions within the Sun result in partial polarization of initial solar neutrino fluxes this gives a new opportunity to distinguish Majorana and Dirac neutrinos by measuring the differential ν e e-scattering cross section in solar neutrino detectors. The partial polarization of Majorana neutrinos produced by the effective ν e L → ˜ ν e R-conversions in solar magnetic fields might...

متن کامل

ar X iv : h ep - p h / 99 06 38 1 v 2 6 S ep 1 99 9 Nature of neutrinos in the light of present and future experiments

Two general models with hierarchical and almost degenerate neutrino masses, which are able to explain the solar and atmospheric anomalies are investigated. We show how neutrinoless double beta decay experiments discern Dirac and Majorana natures of neutrinos. The strongest result is, that almost degenerate neutrinos with masses above 0.22 eV combined with the SMA MSW must be Dirac particles. In...

متن کامل

ar X iv : h ep - p h / 99 06 38 1 v 1 1 6 Ju n 19 99 Nature of neutrinos in the light of present and future experiments

Two general models with hierarchical and almost degenerate neutrino masses, which are able to explain the solar and atmospheric anomalies are investigated. We show how neutrinoless double beta decay experiments discern Dirac and Majorana natures of neutrinos. The strongest result is, that almost degenerate neutrinos with masses above 0.22 eV combined with the SMA MSW must be Dirac particles. In...

متن کامل

ar X iv : h ep - p h / 97 08 44 5 v 1 2 4 A ug 1 99 7 Concerning the Differences Between Zero Mass Dirac and Majorana Neutrinos

That a Majorana neutrino theory is different from a Dirac neutrino theory (even in the zero mass limit) is proved in two sentences. Fermion Statistics For the reactions (Dirac) e + e − → ν ¯ ν and (Majorana) e + e − → νν wherein the two final particles are presumed to have opposite helicity, in the Dirac case the neutrino and anti-neutrino are different particles so that Ψ Dirac (p 1 , λ 1 ; ¯ ...

متن کامل

ar X iv : h ep - p h / 06 10 38 1 v 1 28 O ct 2 00 6 Neutrino masses in the economical 3 - 3 - 1 model

We show that, in frameworks of the economical 3-3-1 model, the suitable pattern of neutrino masses arises from the three quite different sources the lepton-number conserving, the spontaneous lepton-number breaking and the explicit lepton-number violating, widely ranging over the mass scales including the GUT one: u ∼ O(1) GeV, v ≈ 246 GeV, ω ∼ O(1) TeV and M ∼ O(10) GeV. At the tree-level, the ...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1997