New measurement of the 3He(α,γ)7Be cross section at medium energies

M. Carmona-Gallardo, B.S. Nara Singh, M.J.G. Borge, J.A. Briz, M. Cubero, B.R. Fulton, H. Fynbo, N. Gordillo, M. Hass, G. Haquin, A. Maira, E. Nacher, Y. Nir-El, V. Kumar, J. McGrath, A. Munoz-Martin, A. Perea, V. Pesudo, G. Ribeiro, J. Sanchez del Rio & 3 others O. Tengblad, R. Yaniv, Z. Yungreis

Research output: Contribution to journalArticle

Abstract

We report on a new cross-section measurement for the 3He(α,γ)7Be reaction at three medium energies of Ec.m. between 1 and 3 MeV. The interest stems from the significant role played by the reaction in calculating an accurate solar neutrino flux and the primordial 7Li abundance. The energy dependence of the astrophysical S34 factor observed in the present work, especially above 1 MeV, highlights the need to constrain theories in order to obtain a precise extrapolated value for S34(0). In this context, a comparison with the recent theoretical work in a fully microscopic fermionic molecular dynamics approach and a few other representative calculations emphasize the need for further experimental as well as theoretical work to resolve the existing conflicts.
Original languageEnglish
Article number032801
JournalPhysical Review C
Volume86
Issue number3
DOIs
Publication statusPublished - 11 Sep 2012
Externally publishedYes

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cross sections
solar neutrinos
stems
astrophysics
molecular dynamics
energy

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Carmona-Gallardo, M., Nara Singh, B. S., Borge, M. J. G., Briz, J. A., Cubero, M., Fulton, B. R., ... Yungreis, Z. (2012). New measurement of the 3He(α,γ)7Be cross section at medium energies. Physical Review C, 86(3), [032801]. https://doi.org/10.1103/PhysRevC.86.032801
Carmona-Gallardo, M. ; Nara Singh, B.S. ; Borge, M.J.G. ; Briz, J.A. ; Cubero, M. ; Fulton, B.R. ; Fynbo, H. ; Gordillo, N. ; Hass, M. ; Haquin, G. ; Maira, A. ; Nacher, E. ; Nir-El, Y. ; Kumar, V. ; McGrath, J. ; Munoz-Martin, A. ; Perea, A. ; Pesudo, V. ; Ribeiro, G. ; Sanchez del Rio, J. ; Tengblad, O. ; Yaniv, R. ; Yungreis, Z. / New measurement of the 3He(α,γ)7Be cross section at medium energies. In: Physical Review C. 2012 ; Vol. 86, No. 3.
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abstract = "We report on a new cross-section measurement for the 3He(α,γ)7Be reaction at three medium energies of Ec.m. between 1 and 3 MeV. The interest stems from the significant role played by the reaction in calculating an accurate solar neutrino flux and the primordial 7Li abundance. The energy dependence of the astrophysical S34 factor observed in the present work, especially above 1 MeV, highlights the need to constrain theories in order to obtain a precise extrapolated value for S34(0). In this context, a comparison with the recent theoretical work in a fully microscopic fermionic molecular dynamics approach and a few other representative calculations emphasize the need for further experimental as well as theoretical work to resolve the existing conflicts.",
author = "M. Carmona-Gallardo and {Nara Singh}, B.S. and M.J.G. Borge and J.A. Briz and M. Cubero and B.R. Fulton and H. Fynbo and N. Gordillo and M. Hass and G. Haquin and A. Maira and E. Nacher and Y. Nir-El and V. Kumar and J. McGrath and A. Munoz-Martin and A. Perea and V. Pesudo and G. Ribeiro and {Sanchez del Rio}, J. and O. Tengblad and R. Yaniv and Z. Yungreis",
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Carmona-Gallardo, M, Nara Singh, BS, Borge, MJG, Briz, JA, Cubero, M, Fulton, BR, Fynbo, H, Gordillo, N, Hass, M, Haquin, G, Maira, A, Nacher, E, Nir-El, Y, Kumar, V, McGrath, J, Munoz-Martin, A, Perea, A, Pesudo, V, Ribeiro, G, Sanchez del Rio, J, Tengblad, O, Yaniv, R & Yungreis, Z 2012, 'New measurement of the 3He(α,γ)7Be cross section at medium energies' Physical Review C, vol. 86, no. 3, 032801. https://doi.org/10.1103/PhysRevC.86.032801

New measurement of the 3He(α,γ)7Be cross section at medium energies. / Carmona-Gallardo, M.; Nara Singh, B.S.; Borge, M.J.G.; Briz, J.A.; Cubero, M.; Fulton, B.R.; Fynbo, H.; Gordillo, N.; Hass, M.; Haquin, G.; Maira, A.; Nacher, E.; Nir-El, Y.; Kumar, V.; McGrath, J.; Munoz-Martin, A.; Perea, A.; Pesudo, V.; Ribeiro, G.; Sanchez del Rio, J.; Tengblad, O.; Yaniv, R.; Yungreis, Z.

In: Physical Review C, Vol. 86, No. 3, 032801, 11.09.2012.

Research output: Contribution to journalArticle

TY - JOUR

T1 - New measurement of the 3He(α,γ)7Be cross section at medium energies

AU - Carmona-Gallardo, M.

AU - Nara Singh, B.S.

AU - Borge, M.J.G.

AU - Briz, J.A.

AU - Cubero, M.

AU - Fulton, B.R.

AU - Fynbo, H.

AU - Gordillo, N.

AU - Hass, M.

AU - Haquin, G.

AU - Maira, A.

AU - Nacher, E.

AU - Nir-El, Y.

AU - Kumar, V.

AU - McGrath, J.

AU - Munoz-Martin, A.

AU - Perea, A.

AU - Pesudo, V.

AU - Ribeiro, G.

AU - Sanchez del Rio, J.

AU - Tengblad, O.

AU - Yaniv, R.

AU - Yungreis, Z.

PY - 2012/9/11

Y1 - 2012/9/11

N2 - We report on a new cross-section measurement for the 3He(α,γ)7Be reaction at three medium energies of Ec.m. between 1 and 3 MeV. The interest stems from the significant role played by the reaction in calculating an accurate solar neutrino flux and the primordial 7Li abundance. The energy dependence of the astrophysical S34 factor observed in the present work, especially above 1 MeV, highlights the need to constrain theories in order to obtain a precise extrapolated value for S34(0). In this context, a comparison with the recent theoretical work in a fully microscopic fermionic molecular dynamics approach and a few other representative calculations emphasize the need for further experimental as well as theoretical work to resolve the existing conflicts.

AB - We report on a new cross-section measurement for the 3He(α,γ)7Be reaction at three medium energies of Ec.m. between 1 and 3 MeV. The interest stems from the significant role played by the reaction in calculating an accurate solar neutrino flux and the primordial 7Li abundance. The energy dependence of the astrophysical S34 factor observed in the present work, especially above 1 MeV, highlights the need to constrain theories in order to obtain a precise extrapolated value for S34(0). In this context, a comparison with the recent theoretical work in a fully microscopic fermionic molecular dynamics approach and a few other representative calculations emphasize the need for further experimental as well as theoretical work to resolve the existing conflicts.

U2 - 10.1103/PhysRevC.86.032801

DO - 10.1103/PhysRevC.86.032801

M3 - Article

VL - 86

JO - Physical Review C

JF - Physical Review C

SN - 2469-9985

IS - 3

M1 - 032801

ER -

Carmona-Gallardo M, Nara Singh BS, Borge MJG, Briz JA, Cubero M, Fulton BR et al. New measurement of the 3He(α,γ)7Be cross section at medium energies. Physical Review C. 2012 Sep 11;86(3). 032801. https://doi.org/10.1103/PhysRevC.86.032801