Measurement of the 25Mg(α,n)28Si reaction cross section at LNL

R. Depalo; A. Caciolli; T. Marchi; S. Appannababu; N. Blasi; C. Broggini; F. Camera; M. Cinausero; G. Collanzuol; D. Fabris; F. Gramegna; V. L. Kravchuk; M. Leone; A. Lombardi; P. Mastinu; R. Menegazzo; G. Montagnoli; G. Prete; V. Rigato; C. Rossi Alvarez; O. Wieland

doi:10.1051/epjconf/20146607002

All issues

Volume 66 (2014)

EPJ Web of Conferences, 66 (2014) 07002

Abstract

Open Access

Issue		EPJ Web of Conferences Volume 66, 2014 INPC 2013 – International Nuclear Physics Conference


Article Number		07002
Number of page(s)		4
Section		Nuclear Astrophysics
DOI		https://doi.org/10.1051/epjconf/20146607002
Published online		20 March 2014

EPJ Web of Conferences 66, 07002 (2014)
https://doi.org/10.1051/epjconf/20146607002

Measurement of the ²⁵Mg(α,n)²⁸Si reaction cross section at LNL

R. Depalo¹^,2^a, A. Caciolli¹, T. Marchi²^,3, S. Appannababu³, N. Blasi⁴, C. Broggini², F. Camera⁴^,5, M. Cinausero³, G. Collanzuol¹^,2, D. Fabris¹, F. Gramegna³, V. L. Kravchuk³, M. Leone², A. Lombardi³, P. Mastinu³, R. Menegazzo¹, G. Montagnoli¹^,2, G. Prete³, V. Rigato³, C. Rossi Alvarez¹ and O. Wieland⁴

¹ INFN, Sezione di Padova, Padova, Italy
² Dipartimento di Fisica e Astronomia, Università di Padova, Padova, Italy
³ INFN, Laboratori Nazionali di Legnaro, Legnaro, Italy
⁴ INFN, Sezione di Milano, Milano, Italy
⁵ Dipartimento di Fisica, Università degli studi di Milano, Milano, Italy

^a e-mail: rdepalo@pd.infn.it

Published online: 20 March 2014

Abstract

The detection of the 1809 keV emission line associated with the decay of ²⁶Al in the interstellar medium provides a direct evidence of recent nucleosynthesis events in our galaxy.

²⁶Al is thought to be mainly produced in massive stars, but in order to have a quantita- tive understanding of the ²⁶Al distribution, the cross section of all the nuclear reactions involved in its production should be accurately known.

A recent sensitivity study demonstrated that the ²⁵Mg(α,n)²⁸Si is the reaction with the strongest impact on the synthesis of ²⁶Al during explosive Neon and Carbon burning [4]. In order to improve the experimental knowledge of the ²⁵Mg(α,n)²⁸Si cross section, a new direct measurement has been performed at Legnaro National Laboratories.

The experimental setup, the data analysis and preliminary results are discussed.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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