Assuming a nonvanishing neutrino magnetic moment mu we study tau-neutrino properties in the process e+e- --> nunugammaBAR from the single photon searches at colliders. We find that for a sufficiently large value of neutrino mass, i.e., m > 2.1 X (10(10)mu/mu(B)) MeV (where mu(B) = e/2m(e) is the Bohr magneton), the interference between the diagrams with Z0 and gamma exchange becomes important and should be taken into account in future e+e- experiments. Some cosmological and astrophysical implications of this new heavy-neutrino scenario are briefly discussed.
Fargion, D., Konoplich, R.v., Mignani, R. (1993). INVESTIGATION OF NEUTRINO PROPERTIES IN THE PROCESS E+E--]NU(NU)OVER-BAR-GAMMA. PHYSICAL REVIEW D, 47(3), R751-R753 [10.1103/PhysRevD.47.R751].
INVESTIGATION OF NEUTRINO PROPERTIES IN THE PROCESS E+E--]NU(NU)OVER-BAR-GAMMA
MIGNANI, ROBERTO
1993-01-01
Abstract
Assuming a nonvanishing neutrino magnetic moment mu we study tau-neutrino properties in the process e+e- --> nunugammaBAR from the single photon searches at colliders. We find that for a sufficiently large value of neutrino mass, i.e., m > 2.1 X (10(10)mu/mu(B)) MeV (where mu(B) = e/2m(e) is the Bohr magneton), the interference between the diagrams with Z0 and gamma exchange becomes important and should be taken into account in future e+e- experiments. Some cosmological and astrophysical implications of this new heavy-neutrino scenario are briefly discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.