1 99 4 Has a Standard Physics Solution to the Solar Neutrino Problem Been Found ? - a Response
نویسنده
چکیده
In a recent paper Dar and Shaviv (1994) presented results of calculations with an improved standard solar model (SSM) that suggest a standard physics solution to the solar neutrino problem. In a subsequent publication with a similar title Bahcall et al. (1994) have claimed to refute the results obtained by Dar and Shaviv. Here we show that the criticism and conclusions of Bahcall et al. are unjustified. In particular, their attempts to reproduce the results of Dar and Shaviv failed because they did not use the same nuclear cross sections and did not include in their calculations major physics improvements which were included in the improved SSM code used by Dar and Shaviv.
منابع مشابه
v 1 4 N ov 1 99 6 STANDARD PHYSICS SOLUTION TO THE SOLAR NEUTRINO PROBLEM ?
The 8 B solar neutrino flux predicted by the standard solar model (SSM) is consistent within the theoretical and experimental uncertainties with that observed at Kamiokande. The Gallium and Chlorine solar neutrino experiments, however, seem to imply that the 7 Be solar neutrino flux is strongly suppressed compared with that predicted by the SSM. If the 7 Be solar neutrino flux is suppressed, st...
متن کاملHas a Standard Model Solution to the Solar Neutrino Problem Been Found?
The claim by Dar and Shaviv that they have found a standard model solution to the solar neutrino problem is based upon an incorrect assumption made in extrapolating nuclear cross sections and the selective use of a small fraction of the nuclear physics and of the neutrino data. In addition, five different solar model codes show that the rate obtained for the chlorine experiment using the Dar-Sh...
متن کاملar X iv : n uc l - th / 9 90 30 38 v 1 1 3 M ar 1 99 9 SOLAR , SUPERNOVA , AND ATMOSPHERIC
In these Canberra summer school lectures we treat a number of topical issues in neutrino astrophysics: the solar neutrino problem, including the physics of the standard solar model, helioseismology, and the possibility that the solution involves new particle physics; atmospheric neutrinos; Dirac and Majorana neutrino masses and their consequences for low-energy weak interactions; red giant evol...
متن کاملHe Transport and the Question of Nonstandard Solar Models
I consider phenomenological changes in the standard solar model with the goal of testing recent claims that the solar neutrino puzzle requires new particle physics. The assumption of a steady-state sun producing the correct luminosity and governed by standard microphysics appears to leave only one nonstandard solar model possibility open, slow mixing of the solar core on timescales characterist...
متن کاملKamland Results
The LMA solution of the solar neutrino problem has been explored with the 1,000 ton liquid scintillator detector, KamLAND. It utilizes nuclear power reactors distributing effectively ∼180 km from the experimental site. Comparing observed neutrino rate with the calculation of reactor operation histories, an evidence for reactor neutrino disappearance has been obtained from 162 ton·year exposure ...
متن کامل