Astrophysical S-factor of 14N(p,γ)15O

A. Formicola, G. Imbriani, H. Costantini, C. Angulo, D. Bemmerer, R. Bonetti, C. Broggini, P. Corvisiero, J. Cruz, P. Descouvemont, Zs. S. Fülöp, G. Gervino, A. Guglielmetti, C. Gustavino, G. Gyürky, A. P. Jesus, M. Junker, A. Lemut, R. Menegazzo, P. Prati & 12 others V. Roca, C. Rolfs, M. Romano, C. Rossi Alvarez, F. Schümann, E. Somorjai, O. Straniero, F. Strieder, F. Terrasi, H. P. Trautvetter, A. Vomiero, S. Zavatarelli

Research output: Contribution to journalArticle

269 Citations (Scopus)

Abstract

We report on a new measurement of the 14N(p,γ) 15O capture cross section at Ep=140 to 400 keV using the 400 kV LUNA accelerator facility at the Laboratori Nazionali del Gran Sasso (LNGS). The uncertainties have been reduced with respect to previous measurements and their analysis. We have analyzed the data using the R-matrix method and we find that the ground state transition accounts for about 15% of the total S-factor. The main contribution to the S-factor is given by the transition to the 6.79 MeV state. We find a total S(0)=1.7±0.2 keVb, in agreement with recent extrapolations. The result has important consequences for the solar neutrino spectrum as well as for the age of globular clusters.

Original languageEnglish
Pages (from-to)61-68
Number of pages8
JournalPhysics Letters B
Volume591
Issue number1-2
DOIs
Publication statusPublished - Jul 1 2004

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astrophysics
solar neutrinos
globular clusters
matrix methods
absorption cross sections
extrapolation
accelerators
ground state

Keywords

  • 24.30.-v
  • 24.50.+g
  • 26.20.+f

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Formicola, A., Imbriani, G., Costantini, H., Angulo, C., Bemmerer, D., Bonetti, R., ... Zavatarelli, S. (2004). Astrophysical S-factor of 14N(p,γ)15O. Physics Letters B, 591(1-2), 61-68. https://doi.org/10.1016/j.physletb.2004.03.092

Astrophysical S-factor of 14N(p,γ)15O. / Formicola, A.; Imbriani, G.; Costantini, H.; Angulo, C.; Bemmerer, D.; Bonetti, R.; Broggini, C.; Corvisiero, P.; Cruz, J.; Descouvemont, P.; Fülöp, Zs. S.; Gervino, G.; Guglielmetti, A.; Gustavino, C.; Gyürky, G.; Jesus, A. P.; Junker, M.; Lemut, A.; Menegazzo, R.; Prati, P.; Roca, V.; Rolfs, C.; Romano, M.; Rossi Alvarez, C.; Schümann, F.; Somorjai, E.; Straniero, O.; Strieder, F.; Terrasi, F.; Trautvetter, H. P.; Vomiero, A.; Zavatarelli, S.

In: Physics Letters B, Vol. 591, No. 1-2, 01.07.2004, p. 61-68.

Research output: Contribution to journalArticle

Formicola, A, Imbriani, G, Costantini, H, Angulo, C, Bemmerer, D, Bonetti, R, Broggini, C, Corvisiero, P, Cruz, J, Descouvemont, P, Fülöp, ZS, Gervino, G, Guglielmetti, A, Gustavino, C, Gyürky, G, Jesus, AP, Junker, M, Lemut, A, Menegazzo, R, Prati, P, Roca, V, Rolfs, C, Romano, M, Rossi Alvarez, C, Schümann, F, Somorjai, E, Straniero, O, Strieder, F, Terrasi, F, Trautvetter, HP, Vomiero, A & Zavatarelli, S 2004, 'Astrophysical S-factor of 14N(p,γ)15O', Physics Letters B, vol. 591, no. 1-2, pp. 61-68. https://doi.org/10.1016/j.physletb.2004.03.092
Formicola A, Imbriani G, Costantini H, Angulo C, Bemmerer D, Bonetti R et al. Astrophysical S-factor of 14N(p,γ)15O. Physics Letters B. 2004 Jul 1;591(1-2):61-68. https://doi.org/10.1016/j.physletb.2004.03.092
Formicola, A. ; Imbriani, G. ; Costantini, H. ; Angulo, C. ; Bemmerer, D. ; Bonetti, R. ; Broggini, C. ; Corvisiero, P. ; Cruz, J. ; Descouvemont, P. ; Fülöp, Zs. S. ; Gervino, G. ; Guglielmetti, A. ; Gustavino, C. ; Gyürky, G. ; Jesus, A. P. ; Junker, M. ; Lemut, A. ; Menegazzo, R. ; Prati, P. ; Roca, V. ; Rolfs, C. ; Romano, M. ; Rossi Alvarez, C. ; Schümann, F. ; Somorjai, E. ; Straniero, O. ; Strieder, F. ; Terrasi, F. ; Trautvetter, H. P. ; Vomiero, A. ; Zavatarelli, S. / Astrophysical S-factor of 14N(p,γ)15O. In: Physics Letters B. 2004 ; Vol. 591, No. 1-2. pp. 61-68.
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AU - Formicola, A.

AU - Imbriani, G.

AU - Costantini, H.

AU - Angulo, C.

AU - Bemmerer, D.

AU - Bonetti, R.

AU - Broggini, C.

AU - Corvisiero, P.

AU - Cruz, J.

AU - Descouvemont, P.

AU - Fülöp, Zs. S.

AU - Gervino, G.

AU - Guglielmetti, A.

AU - Gustavino, C.

AU - Gyürky, G.

AU - Jesus, A. P.

AU - Junker, M.

AU - Lemut, A.

AU - Menegazzo, R.

AU - Prati, P.

AU - Roca, V.

AU - Rolfs, C.

AU - Romano, M.

AU - Rossi Alvarez, C.

AU - Schümann, F.

AU - Somorjai, E.

AU - Straniero, O.

AU - Strieder, F.

AU - Terrasi, F.

AU - Trautvetter, H. P.

AU - Vomiero, A.

AU - Zavatarelli, S.

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N2 - We report on a new measurement of the 14N(p,γ) 15O capture cross section at Ep=140 to 400 keV using the 400 kV LUNA accelerator facility at the Laboratori Nazionali del Gran Sasso (LNGS). The uncertainties have been reduced with respect to previous measurements and their analysis. We have analyzed the data using the R-matrix method and we find that the ground state transition accounts for about 15% of the total S-factor. The main contribution to the S-factor is given by the transition to the 6.79 MeV state. We find a total S(0)=1.7±0.2 keVb, in agreement with recent extrapolations. The result has important consequences for the solar neutrino spectrum as well as for the age of globular clusters.

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