Zobrazeno 1 - 10
of 229
pro vyhledávání: '"Bahcall, J."'
Publikováno v:
Phys. Rev. D 60, 093001 (1999)
Recent results on solar neutrinos provide hints that the LMA MSW solution could be correct. We perform accurate calculations for potential `smoking-gun' effects of the LMA solution in the SuperKamiokande solar neutrino experiment, including: (1) an a
Externí odkaz:
http://arxiv.org/abs/hep-ph/9905220
Autor:
Odewahn, S. C., Djorgovski, S. G., Kulkarni, S. R., Dickinson, M., Frail, D. A., Ramaprakash, A. N., Bloom, J. S., Adelberger, K. L., Halpern, J., Helfand, D. J., Bahcall, J., Goodrich, R., Frontera, F., Feroci, M., Piro, L., Costa, E.
We report on Hubble Space Telescope (HST) observations of the host galaxy of GRB 971214, about four months after the burst. The redshift of the proposed host galaxy at z=3.418, combined with optical and radio observations of the burst afterglow, impl
Externí odkaz:
http://arxiv.org/abs/astro-ph/9807212
Publikováno v:
Phys.Rev.D58:096016,1998
We determine the neutrino parameters for MSW and vacuum oscillations (active and sterile neutrinos) that are allowed by the separate, and collective, imposition of the constraints from total event rates in the chlorine, GALLEX, SAGE, and SuperKamioka
Externí odkaz:
http://arxiv.org/abs/hep-ph/9807216
Autor:
Adelberger, E., Austin, S., Bahcall, J., Balantekin, A., Bogaert, G., Brown, L., Buchmann, L., Cecil, F., Champagne, A., de Braeckeleer, L., Duba, C., Elliott, S., Freedman, S., Gai, M., Goldring, G., Gould, C., Gruzinov, A., Haxton, W., Heeger, K., Henley, E., Johnson, C., Kamionkowski, M., Kavanagh, R., Koonin, S., Kubodera, K., Langanke, K., Motobayashi, T., Pandharipande, V., Parker, P., Robertson, R., Rolfs, C., Sawyer, R., Shaviv, N., Shoppa, T., Snover, K., Swanson, E., Tribble, R., Turck-Chieze, S., Wilkerson, J.
Publikováno v:
Rev.Mod.Phys.70:1265-1292,1998
We review and analyze the available information for nuclear fusion cross sections that are most important for solar energy generation and solar neutrino production. We provide best values for the low-energy cross-section factors and, wherever possibl
Externí odkaz:
http://arxiv.org/abs/astro-ph/9805121
Autor:
Bahcall, J. N., Krastev, P. I.
Publikováno v:
Phys.Rev.C56:2839-2857,1997
We calculate accurately the number of solar neutrino events expected as a function of solar zenith angle, with and without neutrino oscillations, for detectors at the locations of Super-Kamiokande, SNO, and the Gran Sasso National Laboratory. Using d
Externí odkaz:
http://arxiv.org/abs/hep-ph/9706239
Autor:
Krastev, P. I., Bahcall, J. N.
We present the status of FCNC solutions to the solar neutrino problem. Our analysis shows that the FCNC solutions with massless neutrinos provide a good fit to the latest solar neutrino data. Predictions for future experiments are formulated which wi
Externí odkaz:
http://arxiv.org/abs/hep-ph/9703267
Autor:
Jannuzi, B. T., Hartig, G. F., Kirhakos, S., Sargent, W. L. W., Turnshek, D. A., Weymann, R. J., Bahcall, J. N., Bergeron, J., Boksenberg, A., Savage, B. D., Schneider, D. P., Wolfe, A. M.
Publikováno v:
Astrophys.J. 470 (1996) L11-L14
We report the discovery of a high-ionization broad absorption line system at a redshift of z_abs=0.695 in the spectrum of the z_em=1.052 radio-quiet quasar PG 2302+039. Broad absorption with FWHM from 3,000 to 5,000 km/s is detected from C IV, N V, a
Externí odkaz:
http://arxiv.org/abs/astro-ph/9608080
Autor:
Bahcall, J. N., Krastev, P. I.
Publikováno v:
Phys.Rev.C55:929-941,1997
Measurements of the interaction rates of the solar neutrino lines of $^7$Be and $pep$ can be used, independent of solar models, to test whether electron flavor is conserved, to determine survival probabilities of electron-type neutrinos at specific e
Externí odkaz:
http://arxiv.org/abs/astro-ph/9607013
Publikováno v:
Phys.Lett. B374 (1996) 1-6
Assuming that MSW neutrino oscillations occur and ignoring all solar physics except for the constraint that nuclear fusion produces the solar luminosity, we show that new solar neutrino experiments are required to rule out empirically the hypothesis
Externí odkaz:
http://arxiv.org/abs/astro-ph/9602065
Autor:
Bahcall, J. N., Krastev, P. I.
Publikováno v:
Phys.Rev.D53:4211-4225,1996
Assuming neutrino oscillations occur, the pp electron neutrino flux is uncertain by at least a factor of two, the ${\rm ^8B}$ flux by a factor of five, and the ${\rm ^7Be}$ flux by a factor of forty-five. Calculations of the expected results of futur
Externí odkaz:
http://arxiv.org/abs/hep-ph/9512378