Using the standard solar model to constrain solar composition and nuclear reaction S factors
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Using the standard solar model to constrain solar composition and nuclear reaction S factors

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Using the standard solar model to constrain solar composition and nuclear reaction S factors

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dc.contributor.author Serenelli, A.
dc.contributor.author Peña Garay, Carlos
dc.contributor.author Haxton, W.C.
dc.date.accessioned 2013-11-28T11:35:54Z
dc.date.available 2013-11-28T11:35:54Z
dc.date.issued 2013
dc.identifier.uri http://dx.doi.org/10.1103/PhysRevD.87.043001
dc.identifier.uri http://hdl.handle.net/10550/31479
dc.description.abstract While standard solar model (SSM) predictions depend on approximately 20 input parameters, SSM neutrino flux predictions are strongly correlated with a single model output parameter, the core temperature T-c. Consequently, one can extract physics from solar neutrino flux measurements while minimizing the consequences of SSM uncertainties, by studying flux ratios with appropriate power-law weightings tuned to cancel this T-c dependence. We reexamine an idea for constraining the primordial C + N content of the solar core from a ratio of CN-cycle O-15 to pp-chain B-8 neutrino fluxes, showing that non-nuclear SSM uncertainties in the ratio are small and effectively governed by a single parameter, the diffusion coefficient. We point out that measurements of both CN-I cycle neutrino branches-O-15 and N-13 beta-decay-could, in principle, lead to separate determinations of the core C and N abundances, due to out-of-equilibrium CN-cycle burning in the cooler outer layers of the solar core. Finally, we show that the strategy of constructing ¿minimum uncertainty¿ neutrino flux ratios can also test other properties of the SSM. In particular, we demonstrate that a weighted ratio of Be-7 and B-8 fluxes constrains a product of S-factors to the same precision currently possible with laboratory data.
dc.relation.ispartof Physical Review D, 2013, vol. 87, num. 4, p. 043001
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Serenelli, A. Peña Garay, Carlos Haxton, W.C. 2013 Using the standard solar model to constrain solar composition and nuclear reaction S factors Physical Review D 87 4 043001
dc.subject Partícules (Física nuclear)
dc.title Using the standard solar model to constrain solar composition and nuclear reaction S factors
dc.type info:eu-repo/semantics/article
dc.date.updated 2013-11-28T11:35:54Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevD.87.043001
dc.identifier.idgrec 084400

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