Resonant conversions of extremely high energy neutrinos in dark matter halos

R. Horvat

doi:10.1103/PhysRevD.59.123003

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Resonant conversions of extremely high energy neutrinos in dark matter halos

R. Horvat

Rudjer Bošković” Institute, P.O. Box 1016, 10001 Zagreb, Croatia

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Phys. Rev. D 59, 123003 – Published 18 May, 1999

DOI: https://doi.org/10.1103/PhysRevD.59.123003

Abstract

We study the effect of adiabatically resonant conversion in galactic halos of neutrinos at the highest energies $(\sim 10^{20} - 10^{22} eV),$ when the $ν$ source is in the center of a galaxy. Using the standard neutrino properties and the standard cosmological scenario for hot dark matter, we find that interesting conversions may take place just for neutrino parameters relevant to the solar and atmospheric neutrino problem. The effect is due to the large enhancement in the $ν$ density in galactic halos and to the form of the effective matter potential both below and above the pole of the Z resonance.

References (27)

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See, for instance, A. Husain, hep-ph/9811221.
M. C. Gonzalez-Garcia et al., Phys. Rev. D 58, 033004 (1998); hep-ph/9807305; R. Foot, R. R. Volkas, and O. Yasuda, Phys. Rev. D 58, 013006 (1998); O. Yasuda, hep-ph/9809206.
Y. Fukuda et al., Phys. Rev. Lett. 81, 1562 (1998).
R. Foot and R. R. Volkas, astro-ph/9811067.
T. K. Kuo and J. Pantaleone, Rev. Mod. Phys. 61, 937 (1989).
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[c1] D. Fargion, B. Mele, and A. Salis, astro-ph/9710029.

[c2] T. J. Weiler, hep-ph/9710431.

[c3] E. Waxman, astro-ph/9804023.

[c4] D. J. Bird et al., Phys. Rev. Lett. 71, 3401 (1993); , Astrophys. J. 424, 491 (1994).

[c5] S. Yoshida et al., Astropart. Phys. 3, 151 (1995).

[c6] K. Greisen, Phys. Rev. Lett. 16, 748 (1966); G. T. Zatsepin and V. A. Kuzmin, Zh. Eksp. Teor. Fiz., Pis’ma Red. 4, 114 (1966) [JETP Lett. 4, 78 (1966)].

[c7] E. Gawiser and J. Silk, Science 28, 1405 (1998) and references therein.

[c8] G. F. Smooth et al., Astrophys. J. 396, L1 (1992); ibid.E. L. Wright et al., 396, L13 (1992).

[c9] J. R. Primack et al., Phys. Rev. Lett. 74, 2160 (1995).

[c10] T. J. Weiler, Phys. Rev. Lett. 49, 234 (1982): Astrophys. J. 285, 495 (1984).

[c11] E. Roulet, Phys. Rev. D 47, 5247 (1993).

[c12] J. Ellis and P. Sikivie, Phys. Lett. B 321, 390 (1994).

[c13] See, for instance, Q. Shafi and F. Stecker, Phys. Rev. Lett. 53, 1292 (1984); M. Davis, F. Summers, and D. Schlegel, Nature (London) 359, 393 (1992).

[c14] S. Tremaine and J. E. Gunn, Phys. Rev. Lett. 42, 407 (1979).

[c15] See, for instance, S. T. Petcov, hep-ph/9806466 and references therein.

[c16] J. Caldwell and J. P. Ostriker, Astrophys. J. 251, 61 (1981).

[c17] J. Binney and S. Treimane, Galactic Dynamics (Princeton University Press, Princeton, 1987), p. 226.

[c18] K. Mannheim, Astropart. Phys. 3, 295 (1995).

[c19] R. J. Protheroe, in Proceedings of the IAU Colloquium 163, Accretion Phenomena Related Outflows, edited by D. Wickramasinghe , 1996 (unpublished).

[c20] M. Roy, J. Phys. G 22, L113 (1996); S. Sahu and V. M. Bannur, hep-ph/9803487; H. Minakata and A. Yu. Smirnov, Phys. Rev. D 54, 3698 (1996).

[c21] P. I. Krastev and S. T. Petcov, in Neutrino 96, Proceedings of the International Conference on Neutrino Physics and Astrophysics, Helsinki, Finland, 1996, edited by K. Enqvist, K. Huitu, and J. Maalampi (World Scientific, Singapore, 1996).

[c22] See, for instance, A. Husain, hep-ph/9811221.

[c23] M. C. Gonzalez-Garcia et al., Phys. Rev. D 58, 033004 (1998); hep-ph/9807305; R. Foot, R. R. Volkas, and O. Yasuda, Phys. Rev. D 58, 013006 (1998); O. Yasuda, hep-ph/9809206.

[c24] Y. Fukuda et al., Phys. Rev. Lett. 81, 1562 (1998).

[c25] R. Foot and R. R. Volkas, astro-ph/9811067.

[c26] T. K. Kuo and J. Pantaleone, Rev. Mod. Phys. 61, 937 (1989).

[c27] G. Raffelt, Stars as Laboratories for Fundamental Physics (University of Chicago Press, Chicago, 1996), p. 258.

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Resonant conversions of extremely high energy neutrinos in dark matter halos

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