Underground experimental study finds no evidence of low-energy resonance in the 6Li(p, γ) 7Be reaction
- Creators
- D. Piatti
- T. Chillery
- R. Depalo
- M. Aliotta
- D. Bemmerer
- A. Best
- A. Boeltzig
- C. Broggini
- C. G. Bruno
- A. Caciolli
- F. Cavanna
- G. F. Ciani
- P. Corvisiero
- L. Csedreki
- T. Davinson
- A. Di Leva
- Z. Elekes
- F. Ferraro
- E. M. Fiore
- A. Formicola
- Z. Fülöp
- G. Gervino
- A. Gnech
- A. Guglielmetti
- C. Gustavino
- G. Gyürky
- G. Imbriani
- M. Junker
- I. Kochanek
- M. Lugaro
- L. E. Marcucci
- P. Marigo
- E. Masha
- R. Menegazzo
- V. Mossa
- F. R. Pantaleo
- V. Paticchio
- R. Perrino
- P. Prati
- L. Schiavulli
- K. Stöckel
- O. Straniero
- T. Szücs
- M. P. Takács
- S. Zavatarelli
- Others:
- Piatti, D.
- Chillery, T.
- Depalo, R.
- Aliotta, M.
- Bemmerer, D.
- Best, A.
- Boeltzig, A.
- Broggini, C.
- Bruno, C. G.
- Caciolli, A.
- Cavanna, F.
- Ciani, G. F.
- Corvisiero, P.
- Csedreki, L.
- Davinson, T.
- Di Leva, A.
- Elekes, Z.
- Ferraro, F.
- Fiore, E. M.
- Formicola, A.
- Fülöp, Z.
- Gervino, G.
- Gnech, A.
- Guglielmetti, A.
- Gustavino, C.
- Gyürky, G.
- Imbriani, G.
- Junker, M.
- Kochanek, I.
- Lugaro, M.
- Marcucci, L. E.
- Marigo, P.
- Masha, E.
- Menegazzo, R.
- Mossa, V.
- Pantaleo, F. R.
- Paticchio, V.
- Perrino, R.
- Prati, P.
- Schiavulli, L.
- Stöckel, K.
- Straniero, O.
- Szücs, T.
- Takács, M. P.
- Zavatarelli, S.
Description
The astrophysical 6Li(p, γ ) 7Be reaction occurs during Big Bang nucleosynthesis and the pre-main sequence and main sequence phases of stellar evolution. The low-energy trend of its cross section remains uncertain, since different measurements have provided conflicting results. A recent experiment reported a resonance like structure at center-of-mass energy 195 keV, associated to a positive-parity state of 7Be. The existence of such resonance is still a matter of debate. We report a new measurement of the 6Li(p, γ ) 7Be cross section performed at the Laboratory for Underground Nuclear Astrophysics, covering the center-of-mass energy range E = 60–350 keV. Our results rule out the existence of low-energy resonances. The astrophysical S-factor varies smoothly with energy, in agreement with theoretical models.
Additional details
- URL
- http://hdl.handle.net/11567/1030441
- URN
- urn:oai:iris.unige.it:11567/1030441
- Origin repository
- UNIGE