The Central Temperature of the Sun can be Measured via the $^7$Be Solar Neutrino Line

Details The Central Temperature of the Sun can be Measured via the $^7$Be Solar Neutrino Line The Central Temperature of the Sun can be Measured via the $^7$Be Solar Neutrino Line

1993-09-20

arxiv.org/abs/hep-ph/9309292v1

Phys.Rev.Lett. 71 (1993) 2369-2371

Physics

High Energy Physics

High Energy Physics - Phenomenology

RevTeX file, 9 pages. For hardcopy with figure, send to BEST@SNS.IAS.EDU. Institute for Advanced Study number AST 93/41

Scientific paper

10.1103/PhysRevLett.71.2369

A precise test of the theory of stellar evolution can be performed by measuring the difference in average energy between the neutrino line produced by ${\rm ^7Be}$ electron capture in the solar interior and the corresponding neutrino line produced in a terrestrial laboratory. The high temperatures in the center of the sun broaden the line asymmetrically, FWHM = 1.6~keV, and cause an average energy shift of 1.3~keV. The width of the $^7$Be neutrino line should be taken into account in calculations of vacuum neutrino oscillations.

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