Direct measurement of the 15N(p,gamma)16O total cross section at novae energies
| Autor: | Bemmerer, D, Caciolli, A, Bonetti, R, Broggini, C, Confortola, F, Corvisiero, P, Costantini, H, Elekes, Z, Formicola, A, Fulop, Zs, Gervino, G, Guglielmetti, A, Gustavino, C, Gyurky, Gy, Junker, M, Limata, B, Marta, M, Menegazzo, R, Prati, P, Roca, V, Rolfs, C, Alvarez, C Rossi, Somorjai, E, Straniero, O |
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| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | J.Phys.G36:045202,2009 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/0954-3899/36/4/045202 |
| Popis: | The 15N(p,gamma)16O reaction controls the passage of nucleosynthetic material from the first to the second carbon-nitrogen-oxygen (CNO) cycle. A direct measurement of the total 15N(p,gamma)16O cross section at energies corresponding to hydrogen burning in novae is presented here. Data have been taken at 90-230 keV center-of-mass energy using a windowless gas target filled with nitrogen of natural isotopic composition and a bismuth germanate summing detector. The cross section is found to be a factor two lower than previously believed. Comment: LUNA collaboration; accepted by J. Phys. G |
| Databáze: | arXiv |
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