The results of all currently operating solar neutrino experiments are analyzed in the framework of the resonant neutrino spin--flavor precession scenario including the effects of neutrino mixing. Nine different profiles of the solar magnetic field are used in the calculations. It is shown that the available experimental data can be accounted for within the considered scenario. The Ga--Ge data lead to an upper limit on the neutrino mixing angle: $\sin 2\theta_0 \aprle 0.25$. One can discriminate between small mixing angle ($\sin 2\theta_0 \aprle 0.1$) and moderate mixing angle solutions by studying the solar ν¯e flux which is predicted to be sizeable for moderate mixing angles. The expected signals due to ν¯e in the SNO, Super--Kamiokande and Borexino experiments are calculated and found to be detectable for $\sin 2\theta_0 \aprge 0.1$.

Solar neutrino data, neutrino magnetic moments and flavor mixing

Lanza, Antonio;Petkov, Serguey Todorov
1995

Abstract

The results of all currently operating solar neutrino experiments are analyzed in the framework of the resonant neutrino spin--flavor precession scenario including the effects of neutrino mixing. Nine different profiles of the solar magnetic field are used in the calculations. It is shown that the available experimental data can be accounted for within the considered scenario. The Ga--Ge data lead to an upper limit on the neutrino mixing angle: $\sin 2\theta_0 \aprle 0.25$. One can discriminate between small mixing angle ($\sin 2\theta_0 \aprle 0.1$) and moderate mixing angle solutions by studying the solar ν¯e flux which is predicted to be sizeable for moderate mixing angles. The expected signals due to ν¯e in the SNO, Super--Kamiokande and Borexino experiments are calculated and found to be detectable for $\sin 2\theta_0 \aprge 0.1$.
348
1-2
124
132
https://arxiv.org/abs/hep-ph/9411299
Akhmedov, E. K. h.; Lanza, Antonio; Petkov, Serguey Todorov
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11767/51596
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 38
  • ???jsp.display-item.citation.isi??? 38
social impact