Neutrinos from a standard solar model

Filippone, B W; Schramm, D N

doi:10.1086/159643

Title: Neutrinos from a standard solar model

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Abstract

A detailed estimate is presented of the possible uncertainty range for the neutrino flux from a standard solar model. Using present estimated errors in the key input parameters, detailed solar models are calculated to give an uncertainty in the theoretical ..nu../sub e/ capture rate in both the ongoing /sup 37/Cl experiment and the proposed experiment using /sup 71/Ga. The uncertainty in capture rate is investigated by considering individual parameter variations about a mean model, by simultaneously varying several key parameters to yield upper and lower limits, and by a Monte Carlo method. It is found that with the most recent experimental value of Davis: 2.2+0.4 SNU: and the best-estimate mean model of the present work: 7.0 +- 3.0 SNU: the theoretical to experimental ratio is 3.2 +- 1.5, or 1.5 standard deviations from agreement. The prediction for /sup 71/Ga is 111 +- 13 SNU. While the mean value for the /sup 37/Cl capture rate is in good agreement with the recent calculation of Bahcell et al., the estimated uncertainty is larger than the factor of 2. The largest sources of uncertainty in these predictions are due to the range used in the /sup 3/He(..cap alpha..,..gamma..)/sup 7/Be cross section and tomore »« less

Authors:: Filippone, B W; Schramm, D N

Publication Date:: Mon Feb 01 00:00:00 EST 1982

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States); and Department of Physics, University of Chicago

OSTI Identifier:: 5169771

Resource Type:: Journal Article

Journal Name:: Astrophys. J.; (United States)

Additional Journal Information:: Journal Volume: 253:1

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; SOLAR NEUTRINOS; SOLAR NEUTRONS; CAPTURE; CROSS SECTIONS; MONTE CARLO METHOD; NEUTRINO DETECTION; NUCLEAR REACTIONS; OSCILLATIONS; BARYONS; DETECTION; ELEMENTARY PARTICLES; FERMIONS; HADRONS; LEPTONS; MASSLESS PARTICLES; NEUTRINOS; NEUTRONS; NUCLEONS; RADIATION DETECTION; RADIATIONS; SOLAR PARTICLES; SOLAR RADIATION; STELLAR RADIATION; 640104* - Astrophysics & Cosmology- Solar Phenomena

Citation Formats


                    Filippone, B W, and Schramm, D N. Neutrinos from a standard solar model.  United States: N. p., 1982. 
        Web.  doi:10.1086/159643.

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                    Filippone, B W, & Schramm, D N. Neutrinos from a standard solar model.  United States.  https://doi.org/10.1086/159643

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                    Filippone, B W, and Schramm, D N. 1982.  
        "Neutrinos from a standard solar model".  United States.  https://doi.org/10.1086/159643.

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@article{osti_5169771,

  title        = {Neutrinos from a standard solar model},

  author       = {Filippone, B W and Schramm, D N},

  abstractNote = {A detailed estimate is presented of the possible uncertainty range for the neutrino flux from a standard solar model. Using present estimated errors in the key input parameters, detailed solar models are calculated to give an uncertainty in the theoretical ..nu../sub e/ capture rate in both the ongoing /sup 37/Cl experiment and the proposed experiment using /sup 71/Ga. The uncertainty in capture rate is investigated by considering individual parameter variations about a mean model, by simultaneously varying several key parameters to yield upper and lower limits, and by a Monte Carlo method. It is found that with the most recent experimental value of Davis: 2.2+0.4 SNU: and the best-estimate mean model of the present work: 7.0 +- 3.0 SNU: the theoretical to experimental ratio is 3.2 +- 1.5, or 1.5 standard deviations from agreement. The prediction for /sup 71/Ga is 111 +- 13 SNU. While the mean value for the /sup 37/Cl capture rate is in good agreement with the recent calculation of Bahcell et al., the estimated uncertainty is larger than the factor of 2. The largest sources of uncertainty in these predictions are due to the range used in the /sup 3/He(..cap alpha..,..gamma..)/sup 7/Be cross section and to the estimate of the error range of the calculated opacities. The results are also discussed, in light of recent experimental and theoretical work on neutrino oscillations, to determine if the present situation provides any evidence of such oscillations. It is found that while there is only weak evidence in the /sup 37/Cl experiments, a discrepancy in he /sup 71/Ga experiment could be interpreted as strong evidence for neutrino oscillations.},

  doi          = {10.1086/159643},

  url          = {https://www.osti.gov/biblio/5169771},
  journal      = {Astrophys. J.; (United States)},
number       = ,

  volume       = 253:1,

  place        = {United States},

  year         = {Mon Feb 01 00:00:00 EST 1982},

  month        = {Mon Feb 01 00:00:00 EST 1982}

}

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