Results 21 to 30 of about 658,118 (329)

The Standard Solar Model [PDF]

International Astronomical Union Colloquium, 1990
AbstractThe main features of standard solar models, the logic of the calculations, and some of the important results concerning solar neutrinos experiments are given. The input parameters that cause the greatest uncertainties in the calculated neutrino fluxes are the nuclear rection rates, the chemical abundances, the radiative opacity, and the ...
J. N. Bahcall, M. Cribier
openaire   +1 more source

Alive and well: A short review about standard solar models [PDF]

The European Physical Journal A, 2016
Standard solar models (SSMs) provide a reference framework across a number of research fields: solar and stellar models, solar neutrinos, particle physics the most conspicuous among them. The accuracy of the physical description of the global properties of the Sun that SSMs provide has been challenged in the last decade by a number of developments in ...
Aldo Serenelli
openalex   +4 more sources

A New Generation of Standard Solar Models [PDF]

The Astrophysical Journal, 2017
Abstract We compute a new generation of standard solar models (SSMs) that includes recent updates on some important nuclear reaction rates and a more consistent treatment of the equation of state. Models also include a novel and flexible treatment of opacity uncertainties based on opacity kernels, required in light of recent theoretical ...
Núria Vinyoles, Aldo M. Serenelli, Francesco L. Villante, Sarbani Basu, Johannes Bergström, M. C. Gonzalez-Garcia, Michele Maltoni, Carlos Peña-Garay, Ningqiang Song   +8 more
openaire   +3 more sources

The Solar Neutrino Problem - An Update [PDF]

, 1998
The $^8$B solar neutrino flux as measured by Super-Kamiokande is consistent with the $^{37}$Ar production rate in $^{37}$Cl at Homestake. GALLEX and SAGE, continue to observe $^{71}$Ge production rates in $^{71}$Ga that are consistent with the minimal ...
Adelberger, Akhmedov, Alexander, Bahcall, Bahcall, Bahcall, Bahcall, Barker, Basu, Basu, Cribier, Cunha, Dar, Dar, Dar, Dar, Dwarakanath, Gies, Greife, Hilgemeier, Kamionkowski, Kaniadakis, Kavanagh, Kavanagh, Krauss, Kräwinkel, Lim, Mikheyev, Motobayashi, Nunes, Okun, Osborne, Osborne, Parker, Parker, Parker, Richard, Robertson, Salpeter, Shaviv, Turck-Chieze, Vaughn, Volk, Wilson, Wolfenstein, Wolfenstein, Xu   +46 more
core   +3 more sources

New oscillation and scattering constraints on the tau row matrix elements without assuming unitarity

Journal of High Energy Physics, 2022
The tau neutrino is the least well measured particle in the Standard Model. Most notably, the tau neutrino row of the lepton mixing matrix is quite poorly constrained when unitarity is not assumed.
Peter B. Denton, Julia Gehrlein
doaj   +1 more source

Solar Neutrinos Before and After KamLAND [PDF]

, 2002
We use the recently reported KamLAND measurements on oscillations of reactor anti-neutrinos, together with the data of previously reported solar neutrino experiments, to show that: (1) the total 8B neutrino flux emitted by the Sun is 1.00(1.0 \pm 0.06 ...
A. Bandyopadhyay, A. Friedland, Carlos Pe na-Garay, I. Mocioiu, J.N. Bahcall, J.N. Bahcall, J.N. Bahcall, J.N. Bahcall, J.N. Bahcall, J.N. Bahcall, John N Bahcall, KamLAND collaboration, M. Concepcion Gonzalez-Garcia, P. Aliani, P. Aliani, P. Creminelli, P.C. de Holanda, R. Barbieri, S.P. Mikheyev, SAGE collaboration, T. Kirsten   +20 more
core   +6 more sources

7Be Solar Neutrino Measurement with KamLAND [PDF]

, 2015
We report a measurement of the neutrino-electron elastic scattering rate of 862 keV 7Be solar neutrinos based on a 165.4 kton-day exposure of KamLAND. The observed rate is 582 +/- 90 (kton-day)^-1, which corresponds to a 862 keV 7Be solar neutrino flux ...
A. Gando, A. Kozlov, A. Obata, A. Oki, A. Piepke, A. Suzuki, A. Tang, B. D. Xu, B. E. Berger, B. K. Fujikawa, C. E. Lane, C. Grant, C. Mauger, C. Zhang, D. Dwyer, D. M. Markoff, D. Motoki, D. W. McKee, G. A. Horton-Smith, G. Keefer, H. Hanakago, H. Ikeda, H. Ishikawa, H. J. Karwowski, H. M. Steiner, H. Murayama, H. Watanabe, H. Yoshida, I. Shimizu, J. A. Detwiler, J. G. Learned, J. Maricic, J. Shirai, K. E. Downum, K. Han, K. Heeger, K. Ichimura, K. Inoue, K. Ishidoshiro, K. Nakajima, K. Nakamura, K. Tamae, K. Tolich, K. Ueshima, L. A. Winslow, L. Hsu, M. Koga, M. Otani, M. P. Decowski, M. Sakai, null null, O. Perevozchikov, R. D. McKeown, R. Matsuda, S. Enomoto, S. J. Freedman, S. Matsuda, S. Yamada, S. Yoshida, T. Bloxham, T. I. Banks, T. Miletic, T. Mitsui, T. O'Donnell, W. Tornow, Y. Efremenko, Y. Gando, Y. Kamyshkov, Y. Kishimoto, Y. Oki, Y. Takemoto, Y. Yamauchi   +71 more
core   +3 more sources

Standard solar model

The Astrophysical Journal, 1992
A set of solar models have been constructed, each based on a single modification to the physics of a reference solar model. In addition, a model combining several of the improvements has been calculated to provide a best solar model. Improvements were made to the nuclear reaction rates, the equation of state, the opacities, and the treatment of the ...
D. B. Guenther, P. Demarque, Y.-C. Kim, M. H. Pinsonneault   +3 more
openaire   +1 more source

Development of a local empirical model of ionospheric total electron content (TEC) and its application for studying solar-ionospheric effects

Scientific Reports, 2021
Regular and irregular variations in total electron content (TEC) are one of the most significant observables in ionospheric studies. During the solar cycle 24, the variability of ionosphere is studied using global positioning system derived TEC at a mid ...
Pantea Davoudifar, Keihanak Rowshan Tabari, Amir Abbas Eslami Shafigh, Ali Ajabshirizadeh, Zahra Bagheri, Fakhredin Akbarian Tork Abad, Milad Shayan   +6 more
doaj   +1 more source

Non-Zero Electric Charge of the Neutrino and the Solar Neutrino Problem [PDF]

, 1994
It has recently been shown that the neutrino can have non-zero electric charge in a number of gauge theories, including the Minimal Standard Model. Assuming non-zero neutrino charge, we develop a new approach to the solar neutrino problem.
Ignatiev, A. Yu., Joshi, G. C.
core   +3 more sources