Massive neutrinos

Weak axial exchange currents for the Bethe–Salpeter equation

“…While the measured cross section for the reaction NCA is in agreement with the previous measurements [5,6] and calculations [7,8], the new CCA cross section differs considerably from the previous results. Reactions (1.1) (NCN) and (1.2) (CCN) are important for studying the solar electron neutrino oscillations.…”

Inverse problem of remote neutrino diagnostics of intrareactor processes

“…which may be shortly written down as (10) , (10)) is reduced to the determination of vector of minimal norm on set of vectors λ=(λ 1 ,…λ n ) satisfying the requirement ||Xλ−u||=2(h||λ||+δ). Following Ref.…”

“…Finally, to complete the picture let us note that there is a method, which makes it possible to evade the difficulties concerned with solvability or insolubility of the system of equations such as (10). It turned out, that the theory of discrepancy generalized principle developed in 23 for the solving of nonlinear ill-posed problems makes it possible to construct a method for the solving of ill-posed systems of linear equations with the approximate data.…”

Low-Energy Neutrino Physics and Neutrino Mass

“…In such a case a neutrino beam can produce antileptons (and an antineutrino beam can produce leptons). The probability of such a AL = process is, however, suppressed by the helicity factor (my/E) 2 and becomes essentially unobservable (4,25). Processes with AL = 2 also become possible if weak interactions explicitly involve right-handed lepton currents, as discussed in Section 3.5.…”