Angle-integrated measurements of the 26Al (d, n)27Si reaction cross section: a probe of spectroscopic factors and astrophysical resonance strengths

A. Kankainen; P. J. Woods; F. Nunes; C. Langer; H. Schatz; V. Bader; T. Baugher; D. Bazin; B. A. Brown; J. Browne; D. T. Doherty; A. Estrade; A. Gade; A. Kontos; G. Lotay; Z. Meisel; F. Montes; S. Noji; G. Perdikakis; J. Pereira; F. Recchia; T. Redpath; R. Stroberg; M. Scott; D. Seweryniak; J. Stevens; D. Weisshaar; K. Wimmer; R. Zegers

doi:10.1140/epja/i2016-16006-5

2022 Impact factor 2.7

Hadrons and Nuclei

Open Access

Eur. Phys. J. A (2016) 52: 6
https://doi.org/10.1140/epja/i2016-16006-5

Regular Article - Experimental Physics

Angle-integrated measurements of the ²⁶Al (d, n)²⁷Si reaction cross section: a probe of spectroscopic factors and astrophysical resonance strengths

A. Kankainen¹, P. J. Woods¹, F. Nunes²^,3^,4, C. Langer²^,4, H. Schatz²^,3^,4, V. Bader²^,3, T. Baugher², D. Bazin², B. A. Brown²^,3^,4, J. Browne²^,3^,4, D. T. Doherty¹, A. Estrade¹, A. Gade²^,3, A. Kontos², G. Lotay¹, Z. Meisel²^,3^,4, F. Montes²^,4, S. Noji², G. Perdikakis⁴^,5, J. Pereira²^,4, F. Recchia², T. Redpath⁵, R. Stroberg²^,3, M. Scott²^,3, D. Seweryniak⁶, J. Stevens²^,4, D. Weisshaar², K. Wimmer⁵ and R. Zegers²^,3^,4

¹ University of Edinburgh, EH9 3JZ, Edinburgh, UK
² National Superconducting Cyclotron Laboratory, Michigan State University, 48824, East Lansing, MI, USA
³ Department of Physics and Astronomy, Michigan State University, 48824, East Lansing, MI, USA
⁴ JINA Center for the Evolution of the Elements, Michigan State University, 48824, East Lansing, MI, USA
⁵ Central Michigan University, 48859, Mount Pleasant, MI, USA
⁶ Argonne National Laboratory, 60439, Argonne, IL, USA

Received: 12 October 2015
Accepted: 3 December 2015
Published online: 14 January 2016

Abstract

Measurements of angle-integrated cross sections to discrete states in ²⁷Si have been performed studying the ²⁶Al (d, n) reaction in inverse kinematics by tagging states by their characteristic -decays using the GRETINA array. Transfer reaction theory has been applied to derive spectroscopic factors for strong single-particle states below the proton threshold, and astrophysical resonances in the ²⁶Al (p,) ²⁷Si reaction. Comparisons are made between predictions of the shell model and known characteristics of the resonances. Overall very good agreement is obtained, indicating this method can be used to make estimates of resonance strengths for key reactions currently largely unconstrained by experiment.