Results 1 to 10 of about 24,655 (229)

Two-Loop Neutrino Masses and the Solar Neutrino Problem [PDF]

Physical Review D, 1993
The addition of $m$ singlet right-handed neutrinos to the Standard Model leads to radiatively generated mass corrections for the $SU(2)_L $ doublet neutrinos.
A. B. Lahanes, A. I. Abazov, A. I. Davydychev, A. Salam, Biswarup Mukhopadhyaya, C. Ford, C. Ford, C. Jarlskog, Ch. Berger, D. Casper, D. J. Broadhurst, Debajyoti Choudhury, G. F. Smoot, J. A. Gracey, K. Hirata, K. Hirata, K. Olive, K. S. Babu, Kiltikasa, L. Lewin, L. Wolfenstein, L. Wolfenstein, M. Abramowitz, M. Aglietta, N. Hata, P. Anselmann, Raj Gandhi, S. Glashow, S. P. Mikheyev, S. T. Petcov, S. Weinberg, V. N. Gavrin   +31 more
core   +9 more sources

The Simplest Resonant Spin--Flavour Solution to the Solar Neutrino Problem [PDF]

, 2000
We re-analyse the resonant spin-flavour (RSF) solutions to the solar neutrino problem in the framework of analytic solutions to the solar magneto-hydrodynamics (MHD) equations.
Akhmedov, Akhmedov, Azneziris, Azneziris, Bahcall, Bahcall, Bahcall, Bahcall, Bahcall, Bahcall, Bahcall, Balantekin, Bergmann, Boruta, C. Peña-Garay, Chandrasekar, Cleveland, Davis, de Holanda, Derkaoui, Dziembowski, Faı̈d, Fiorentini, Fiorentini, Fornengo, Fukuda, Fukuda, Fukuda, Fukuda, Fukuda, Giunti, Gonzalez-Garcia, Gonzalez-Garcia, Guzzo, J.W.F. Valle, Krastev, Kubodera, Kubota, Kutvitskii, Lim, Mikheev, Mikheev, Moreno-Insertis, O.G. Miranda, Parker, Parker, Pulido, Schechter, Schechter, Schechter, Stix, T.I. Rashba, V.B. Semikoz, Valle, Wolfenstein, Yoshimura, Yoshimura, Zeldovich   +57 more
core   +4 more sources

Solar Models with Helioseismic Constraints and the Solar Neutrino Problem [PDF]

, 2000
Imposing a constraint of the sound-speed profile determined from helioseismology and updating the microphysics, we have revised our seismic solar model, constructed with the assumption of a homogeneous metal abundance distribution, and have shown that ...
Shibahashi, Hiromoto, Watanabe, Satoru
core   +5 more sources

The Relevance of Nuclear Reactions for Standard Solar Models Construction

Frontiers in Astronomy and Space Sciences, 2021
The fundamental processes by which nuclear energy is generated in the Sun have been known for many years. However, continuous progress in areas such as neutrino experiments, stellar spectroscopy and helioseismic data and techniques requires ever more ...
Francesco L. Villante, Francesco L. Villante, Aldo Serenelli, Aldo Serenelli   +3 more
doaj   +1 more source

Statistical significance of the sterile-neutrino hypothesis in the context of reactor and gallium data

Journal of High Energy Physics, 2022
We evaluate the statistical significance of the 3+1 sterile-neutrino hypothesis using ν e and ν ¯ $$ \overline{\nu} $$ e disappearance data from reactor, solar and gallium radioactive source experiments.
Jeffrey M. Berryman, Pilar Coloma, Patrick Huber, Thomas Schwetz, Albert Zhou   +4 more
doaj   +1 more source

Implications of the Dark-LMA solution for neutrino mass matrices

Nuclear Physics B, 2021
In this work we have re-investigated two different kinds of texture zero ansatz of the low energy neutrino mass matrix in view of the Dark-Large-Mixing-Angle (DLMA) solution of the solar neutrino problem which can arise in the presence of non-standard ...
Monojit Ghosh, Srubabati Goswami, Ananya Mukherjee   +2 more
doaj   +1 more source

Neutrinos and Asteroseismology of Stars over the Helium Flash

The Astrophysical Journal, 2023
The helium flash, occurring in stars of 0.6–2.0 M _⊙ at the end of the red giant branch, is not observable via optical means due to the energy of the process being used to lift the core out of degeneracy.
Diogo Capelo, Ilídio Lopes
doaj   +1 more source

Is bi-maximal mixing compatible with the large angle MSW solution of the solar neutrino problem? [PDF]

, 1998
It is shown that the large angle MSW solution of the solar neutrino problem with a bi-maximal neutrino mixing matrix implies an energy-independent suppression of the solar nu_e flux.
A.J. Baltz, B.T. Cleveland, C. Caso, C. Giunti, G. Altarelli, H. Fritzsch, H. Fritzsch, J.N. Abdurashitov, J.N. Bahcall, J.N. Bahcall, K.S. Kang, L. Wolfenstein, L. Wolfenstein, N. Haba, R. Becker-Szendy, S.M. Bilenky, S.M. Bilenky, S.M. Bilenky, S.P. Mikheyev, S.P. Mikheyev, T.K. Kuo, V. Barger, W. Hampel, W.W.M. Allison, Y. Fukuda, Y. Fukuda, Y. Fukuda, Y. Nomura   +27 more
core   +2 more sources

Standard Solar Neutrinos [PDF]

, 1996
An improved standard solar model has been used to calculate the fluxes of standard solar neutrinos. It includes premain sequence evolution, element diffusion, partial ionization effects, and all the possible nuclear reactions between the main elements ...
Anders, Anselmann, Arnon Dar, Bahcall, Bahcall, Bahcall, Barker, Caughlan, Christensen-Dalsgaard, Cleveland, Dar, Dar, Dawarakanath, Dzitko, Filippone, Geiss, Giora Shaviv, Greife, Grevesse, Grevesse, Grevesse, Hata, Hata, Hernandez, Hilgemeier, Johnson, Kamionkowski, Kavanagh, Kim, Kovetz, Krauss, Krawinkel, Langanke, Mikheyev, Motobayashi, Osborne, Parke, Parker, Parker, Parker, Rogers, Shaviv, Shaviv, Sturenburg, Vaughn, Volk, Wolfenstein, Wolfenstein   +47 more
core   +2 more sources

Constraints on decay plus oscillation solutions of the solar neutrino problem [PDF]

, 2002
We examine the constraints on non-radiative decay of neutrinos from the observations of solar neutrino experiments. The standard oscillation hypothesis among three neutrinos solves the solar and atmospheric neutrino problems.
A. Acker, A. Acker, A. Acker, A. Bandyopadhyay, A.S. Joshipura, Anjan S. Joshipura, B.T. Cleveland, D.E. Groom, E. Massó, Eduard Massó, J. Bahcall, J. Bahcall, J. Bahcall, J.A. Frieman, J.N. Abdurashitov, J.N. Bahcall, J.N. Bahcall, J.N. Bahcall, J.N. Bahcall, John F. Beacom, M. Altmann, M. Apollonio, M. Lindner, Q.R. Ahmad, Q.R. Ahmed, Q.R. Ahmed, S. Choubey, S. Fukuda, S. Fukuda, Subhendra Mohanty, W. Hampel, Y. Fukuda   +31 more
core   +2 more sources