A newly observed state in 12C _ characterisation and consequences

3rd International Workshop on "State of the Art in Nuclear Cluster Physics"

Marín-Lámbarri, D.J.^1 ; Freer, M.^1 ; Kokalova, Tz^1 ; Wheldon, C.^1 ; Parker, D.J.^1

School of Physics and Astronomy, University of Birmingham, Birmingham

B15 2TT, United Kingdom^1

关键词: Angular correlations;    Charged-particle detector array;    Double-sided silicon strip detectors;    Measurements of;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/569/1/012071/pdf
DOI  :  10.1088/1742-6596/569/1/012071

来源: IOP

【 摘 要 】

Measurements of the12C(4He,4He)12C∗ reaction at 40 MeV were performed using a charged-particle detector array composed of four double-sided silicon strip detectors. Resonances in12C were reconstructed with the requirement that the a-decay proceeded first via the8Be ground state. Of primary significance was the population of the 13.3 and 22.4 MeV resonances, the latter, observed for the first time in this measurement. By using the angular correlation technique the spins of the resonances, have been established as Jπ4+and Jπ=5-respectively.