Reducing experimental uncertainties on production and destruction of 7Be in hydrogen burning

A. Di Leva, C. Baltador, L. Gialanella, D. Schürmann, N. De Cesare, A. D'Onofrio, G. Imbriani, G. Palumbo, M. Romano, M. Romoli, E. Somorjai, F. Terrasi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The observational constrains given by the detected solar neutrino fluxes are weakened by the uncertainties affecting solar model calculations. This is the case of the uncertainty on the determination of 7Be(p,γ) 8B and 3He(α,γ)7Be, since the neutrinos produced in the decay of 8B and 7Be represent a major contribution to the high energy component of the neutrino spectrum, to which many observations are sensitive. Moreover these cross sections play a significant role in the determination of the mixing during shell hydrogen burning, as well as in Big Bang Nucleosynthesis. With the aim of reducing the uncertainties on these reactions, eventually due to systematic effects, the ERNA collaboration has undertaken a research program based on the use of a recoil mass separator. The 3He(α,γ)7Be reaction was investigated recently, the results have given a substantial improvement in the understanding of this process. The follow up will be the study of 7Be(p,γ)8B in inverse kinematics. The recoil separator, previously installed at the Ruhr University (Bochum, Germany), has been moved and recommissioned, after a significant upgrade, at the CIRCE laboratory of the Second University of Naples - INNOVA (Caserta, Italy). The experimental setup and the development of an intense 7Be beam to allow measurements at energies as low as Ecm ∼ 350keV" is presented.

Original languageEnglish
Title of host publicationProceedings of Science
Publication statusPublished - 2012
Event12th International Symposium on Nuclei in the Cosmos, NIC 2012 - Cairns, QLD, Australia
Duration: Aug 5 2012Aug 12 2012

Other

Other12th International Symposium on Nuclei in the Cosmos, NIC 2012
CountryAustralia
CityCairns, QLD
Period8/5/128/12/12

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destruction
separators
hydrogen
neutrinos
inverse kinematics
solar neutrinos
nuclear fusion
Germany
Italy
energy
cross sections
decay

ASJC Scopus subject areas

  • General

Cite this

Di Leva, A., Baltador, C., Gialanella, L., Schürmann, D., De Cesare, N., D'Onofrio, A., ... Terrasi, F. (2012). Reducing experimental uncertainties on production and destruction of 7Be in hydrogen burning. In Proceedings of Science

Reducing experimental uncertainties on production and destruction of 7Be in hydrogen burning. / Di Leva, A.; Baltador, C.; Gialanella, L.; Schürmann, D.; De Cesare, N.; D'Onofrio, A.; Imbriani, G.; Palumbo, G.; Romano, M.; Romoli, M.; Somorjai, E.; Terrasi, F.

Proceedings of Science. 2012.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Di Leva, A, Baltador, C, Gialanella, L, Schürmann, D, De Cesare, N, D'Onofrio, A, Imbriani, G, Palumbo, G, Romano, M, Romoli, M, Somorjai, E & Terrasi, F 2012, Reducing experimental uncertainties on production and destruction of 7Be in hydrogen burning. in Proceedings of Science. 12th International Symposium on Nuclei in the Cosmos, NIC 2012, Cairns, QLD, Australia, 8/5/12.
Di Leva A, Baltador C, Gialanella L, Schürmann D, De Cesare N, D'Onofrio A et al. Reducing experimental uncertainties on production and destruction of 7Be in hydrogen burning. In Proceedings of Science. 2012
Di Leva, A. ; Baltador, C. ; Gialanella, L. ; Schürmann, D. ; De Cesare, N. ; D'Onofrio, A. ; Imbriani, G. ; Palumbo, G. ; Romano, M. ; Romoli, M. ; Somorjai, E. ; Terrasi, F. / Reducing experimental uncertainties on production and destruction of 7Be in hydrogen burning. Proceedings of Science. 2012.
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AU - D'Onofrio, A.

AU - Imbriani, G.

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