Summary
For small mixing angles θ the amplification of ν oscillations in matter has the resonance form (resonance in neutrino energy or matter density). In the Sun resonance effect results in nontrivial changing (suppression) of ν-flux for a wide range of neutrino parameters Δm 2=(3·10−4÷10−8) (eV)2, sin22θ>10−4.
Riassunto
Per piccoli angoli di mescolanemto θ l’amplificazione delle oscillazioni neutriniche nella materia ha la forma di risonanza (risonanza nell’energia neutrinica o densità di materia). Nel sole l’effetto di risonanza produce un cambiamento non banale (soppressione) del flusso di neutrini per un’ampia gamma di parametri neutrinici Δm 2=3·10−4÷10−8 (eV)2, sin22θ>10−4.
Резюме
Для малых угдов смешивания усиление ν ссцилльций в веществе имеет резонансную форму (резонанс по энергии нейтрино ило плотности вещества). В Солнце резонансный эффект приводит к сложному изменению (подавлению) ν-потока для широкого диапазна нейтринных параметров: Δm 2-3·(10−4÷10−8) эВ2, sin22θ>10−4.
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References
L. Wolfenstein:Phys. Rev. D,17, 2369 (1978).
L. Wolfenstein:Phys. Rev. D,20, 2634 (1979).
V. Barger, K. Whisnant, S. Pakvasa andR. J. N. Phillips:Phys. Rev. D,22, 2718 (1980).
S. Pakvasa: DUMAND-80, Vol.2 (1981), p. 45;H. J. Haubold:Astrophys. Space Sci.,82, 457 (1982).
P. V. Ramana Murthy:Proceedings of the XVIII International Cosmic Rays Conference, Vol.7 (Bangalore, 1983), p. 125.
R. Davis Jr.:Phys. Rev.,12, 302 (1964);J. K. Rowley, B. T. Cleveland andR. Davis jr.: inConference on Solar Neutrinos and Neutrino Astronomy, Lead, SD. 1984, to be published inAIP. Conf. Proc., Lead, 1984.
V. A. Kuzmin:Phys. Lett.,17, 27 (1965);I. R. Barabanov, A. I. Egorov, V. N. Gavrin, Yu. S. Kopysov andG. T. Zatsepin:Neutrino-77, Vol.1 (Nauka, Moscow, 1978), p. 20;V. A. Kuzmin andG. T. Zatsepin:Proceedings of the IX International Cosmic Rays Conference, Vol.2 (London, 1965), p. 1023.
V. N. Gribov andB. Pontecorvo:Phys. Lett.,28, 493 (1969);S. M. Bilenky andB. Pontecorvo:Phys. Rep. C,41, 225 (1978).
J. N. Bahcall, W. F. Huebner, S. H. Lubow, P. D. Parker andR. K. Ulrich:Rev Mod. Phys.,54, 767 (1982).
V. Barger, K. Whisnant andR. J. N. Phillips:Phys. Rev. D,24, 538 (1981).
L. Wolfenstein:Neutrino-78 (Purdue, 1978), p. C3.
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Mikheyev, S.P., Smirnov, A.Y. Resonant amplification of ν oscillations in matter and solar-neutrino spectroscopy. Il Nuovo Cimento C 9, 17–26 (1986). https://doi.org/10.1007/BF02508049
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DOI: https://doi.org/10.1007/BF02508049