Neutron capture cross section measurement of Sm-151 at the CERN neutron time of flight facility (n_TOF)
Abbondanno, U., Aerts, G., Alvarez-Velarde, F., Alvarez-Pol, H., Andriamonje, S., Andrzejewski, J., Badurek, G., Baumann, P., Becvar, F., Benlliure, J., Berthoumieux, E., Calvino, F., Cano-Ott, D., Capote, R., Cennini, P., Chepel, V., Chiaveri, E., Colonna, N., Cortes, G., Cortina, D., Couture, A., Cox, J., Dababneh, S., Dahlfors, M., David, S., Dolfini, R., Domingo-Pardo, C., Duran, R.B., Embid-Segura, M., Ferrant, L., Ferrari, A., Ferreira-Marques, R., Frais-Koelbl, H., Furman, W., Goncalves, I. F., Gallino, R., Gonzalez-Romero, E., Goverdovski, A., Gramegna, F., Griesmayer, E., Gunsing, F., Haas, B., Haight, R., Heil, M., Herrera-Martinez, A., Isaev, S., Jericha, E., Kappeler, F., Kadi, Y., Rauscher, T. and n TOF Collaboration
(2004)
Neutron capture cross section measurement of Sm-151 at the CERN neutron time of flight facility (n_TOF).
Physical Review Letters (16).
ISSN 0031-9007
The Sm-151(n,gamma)Sm-152 cross section has been measured at the spallation neutron facility n_TOF at CERN in the energy range from 1 eV to 1 MeV. The new facility combines excellent resolution in neutron time-of-flight, low repetition rates, and an unsurpassed instantaneous luminosity, resulting in rather favorable signal/background ratios. The Sm-151 cross section is of importance for characterizing neutron capture nucleosynthesis in asymptotic giant branch stars. At a thermal energy of kT=30 keV the Maxwellian averaged cross section of this unstable isotope (t(1/2)=93 yr) was determined to be 3100+/-160 mb, significantly larger than theoretical predictions.
| Item Type | Article |
|---|---|
| Keywords | GIANT BRANCH STARS; S-PROCESS; NUCLEOSYNTHESIS; EVOLUTION |
| Date Deposited | 29 May 2025 09:03 |
| Last Modified | 29 May 2025 09:03 |
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- Abbondanno, U.
- Aerts, G.
- Alvarez-Velarde, F.
- Alvarez-Pol, H.
- Andriamonje, S.
- Andrzejewski, J.
- Badurek, G.
- Baumann, P.
- Becvar, F.
- Benlliure, J.
- Berthoumieux, E.
- Calvino, F.
- Cano-Ott, D.
- Capote, R.
- Cennini, P.
- Chepel, V.
- Chiaveri, E.
- Colonna, N.
- Cortes, G.
- Cortina, D.
- Couture, A.
- Cox, J.
- Dababneh, S.
- Dahlfors, M.
- David, S.
- Dolfini, R.
- Domingo-Pardo, C.
- Duran, R.B.
- Embid-Segura, M.
- Ferrant, L.
- Ferrari, A.
- Ferreira-Marques, R.
- Frais-Koelbl, H.
- Furman, W.
- Goncalves, I. F.
- Gallino, R.
- Gonzalez-Romero, E.
- Goverdovski, A.
- Gramegna, F.
- Griesmayer, E.
- Gunsing, F.
- Haas, B.
- Haight, R.
- Heil, M.
- Herrera-Martinez, A.
- Isaev, S.
- Jericha, E.
- Kappeler, F.
- Kadi, Y.
- Rauscher, T.
- n TOF Collaboration