Investigation of the C14+α molecular configuration in O18 by means of transfer and sequential decay reaction

Yang, B.; Ye, Y. L.; Feng, J.; Lin, C. J.; Jia, H. M.; Li, Z. H.; Lou, J. L.; Li, Q. T.; Ge, Y. C.; Yang, X. F.; Hua, H.; Li, J.; Zang, H. L.; Liu, Q.; Jiang, W.; Li, C. G.; Liu, Y.; Chen, Z. Q.; Wu, H. Y.; Wang, C. G.; Liu, W.; Wang, X.; Li, J. J.; Luo, D. W.; Jiang, Y.; Bai, S. W.; Xu, J. Y.; Ma, N. R.; Sun, L. J.; Wang, D. X.; Yang, Z. H.; Chen, J.

doi:10.1103/PhysRevC.99.064315

Investigation of the ${}^{14}C + α$ molecular configuration in ${}^{18}O$ by means of transfer and sequential decay reaction

Journal Article · Wed Jun 12 00:00:00 EDT 2019 · Physical Review C

DOI:https://doi.org/10.1103/PhysRevC.99.064315· OSTI ID:1562929

Yang, B. ^[1]; Ye, Y. L. ^[1]; Feng, J. ^[1]; Lin, C. J. ^[2]; Jia, H. M. ^[2]; Li, Z. H. ^[1]; Lou, J. L. ^[1]; Li, Q. T. ^[1]; Ge, Y. C. ^[1]; Yang, X. F. ^[1]; Hua, H. ^[1]; Li, J. ^[3]; Zang, H. L. ^[1]; Liu, Q. ^[1]; Jiang, W. ^[4]; Li, C. G. ^[1]; Liu, Y. ^[1]; Chen, Z. Q. ^[1]; Wu, H. Y. ^[1]; Wang, C. G. ^[1] more »

Peking Univ., Beijing (China)
China Institute of Atomic Energy, Beijing (China)
Argonne National Lab. (ANL), Argonne, IL (United States)
Chinese Academy of Sciences (CAS), Beijing (China)
Osaka Univ., Ibaraki (Japan); RIKEN Nishina Center, Saitama (Japan)

A multinucleon transfer and cluster-decay experiment, namely ⁹Be(¹³C,¹⁸O*→¹⁴C+α)α, was performed at a beam energy of 65 MeV. Resonant states in 18O from 7 to 19 MeV, including some newly observed ones, are reconstructed with high resolution, based on the coincident detection of various combinations of the final fragments. Here, the α-decay branching ratios for 14 states are extracted from both the invariant-mass and the missing-mass measurements. Angular correlation analysis was conducted for the 10.3-MeV (4⁺) state. The present work supports the existence of the positive-parity rotational band associated with the ¹⁴C+α molecular structure in ¹⁸O, but the negative-parity band members were not identified.

View Accepted Manuscript (DOE)

Research Organization:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Organization:: National Key Research and Development Program of China; National Natural Science Foundation of China (NSFC); USDOE

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 1562929

Journal Information:: Physical Review C, Journal Name: Physical Review C Journal Issue: 6 Vol. 99; ISSN PRVCAN; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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