Artículos de revistas
Status Of The Solution To The Solar Neutrino Problem Based On Non-standard Neutrino Interactions
Registro en:
Nuclear Physics B - Proceedings Supplements. , v. 97, n. 1-3, p. 235 - 238, 2001.
9205632
10.1016/S0920-5632(01)01272-5
2-s2.0-18144453300
Autor
Bergmann S.
Guzzo M.M.
De Holanda P.C.
Krastev P.I.
Nunokawa H.
Institución
Resumen
We analyze the current status of the solution to the solar neutrino problem based both on: a) non-standard flavor changing neutrino interactions (FCNI) and b) non-universal flavor diagonal neutrino interactions (FDNI). We find that FCNI and FDNI with matter in the sun as well as in the earth provide a good fit not only to the total rate measured by all solar neutrino experiments but also to the day-night and seasonal variations of the event rate, as well as the recoil electron energy spectrum measured by the SuperKamiokande collaboration. This solution does not require massive neutrinos and neutrino mixing in vacuum. Stringent experimental constraints on FCNI from bounds on lepton flavor violating decays and on FDNI from limits on lepton universality violation rule out ν e → ν μ transitions induced by New Physics as a solution to the solar neutrino problem. However, a solution involving ν e → ν τ transitions is viable and could be tested independently by the upcoming B-factories if flavor violating tau decays would be observed at a rate close to the present upper bounds. © 2001 Elsevier Science B.V. 97 1-3 235 238 Wolfenstein, L., (1978) Phys. Rev., 17, p. 2369 Guzzo, M.M., Masiero, A., Petcov, S.T., (1991) Phys. Lett., 260, p. 154 Barger, V., Phillips, R.J.N., Whisnant, K., (1991) Phys. Rev. D, 44, p. 1629 Roulet, E., (1991) Phys. Rev. D, 44, p. 935 Degl'Innocenti, S., Ricci, B., (1993) Mod. Phys. Lett., 8, p. 471 Fogli, G.L., Lisi, E., (1994) Astroparticle Phys., 2, p. 91 Krastev, P.I., Bahcall, J.N., FCNC Solutions to the Solar Neutrino Problem, , hep-ph/9703267 Bergmann, S., (1998) Nucl. Phys., 515, p. 363. , [hep-ph/9707398] Resonant neutrino conversion induced by non-orthogonal massless neutrinos was first discussed by J.W.F. Valle in (1987) Phys. Lett., 199, p. 432. , However this mechanism can not induce a large effect on the solar neutrinos due to the stringent constraints on the model parameters. See also Langacker, P., London, D., (1988) Phys. Rev. D, 38, p. 886 Langacker, P., London, D., (1988) Phys. Rev., 38, p. 907 Nunokawa, H., Qian, Y.-Z., Rossi, A., Valle, J.W.F., (1996) Phys. Rev. D, 54, p. 4356. , [hep-ph/9605301] and references therein Bergmann, S., Kagan, A., (1999) Nucl. Phys. B, 538, p. 368. , [hep-ph/9803305] Cleveland, T.B., (1998) Astrophys. J., 496, p. 505. , (Homestake Collaboration) Hampel, W., (1999) Phys. Lett., 447, p. 127. , (GALLEX Collaboration) Abdurashitov, J.N., (1999) Phys. Rev. C, 60, p. 055801. , (SAGE Collaboration) Fukuda, Y., (1999) Phys. Rev. Lett., 82, p. 1810. , (SuperKamiokande Collaboration) Bahcall, J.N., Basu, S., Pinsonneault, M.H., (1998) Phys. Lett., 433, p. 1. , see also J. N. Bahcall's home page, http://www.sns.ias.edu/~jnb Fogli, G.L., Lisi, E., Montanino, D., (1994) Phys. Rev. D, 49, p. 3226 Fogli, G.L., Lisi, E., (1995) Astropart. Phys., 3, p. 185 Bermann, S., Guzzo, M.M., De Holanda, P.C., Krastev, P.I., Nunokawa, H., (2000) Phys. Rev. D, 62, p. 073001 Suzuki, Y., Solar Neutrinos (1999) Lepton Photon Conference, , talk given at the Gonzalez-Garcia, M.C., (1998) Phys. Rev. D, 58, p. 033004. , For recent analysis, see e.g.: Gonzalez-Garcia, M.C., Nunokawa, H., Peres, O.L.G., Valle, J.W.F., (1999) Nucl. Phys., 543, p. 3 Fornengo, N., Gonzalez-Garcia, M.C., Valle, J.W.F., [hep-ph/0002147]Athanassopoulos, C., (1996) Phys. Rev. Lett., 77, p. 3082. , (LSND Collaboration) Athanassopoulos, C., (1998) Phys. Rev. Lett., 81, p. 1774 Bergmann, S., Grossman, Y., (1999) Phys. Rev. D, 59, p. 093005. , [hep-ph/9809524] Bergmann, S., Grossman, Y., Pierce, D.M., (2000) Phys. Rev. D, 61, p. 53005. , [hep-ph/9909390]