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Title: Investigation of the C 14 + α molecular configuration in O 18 by means of transfer and sequential decay reaction

Abstract

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.

Authors:
 [1];  [1];  [1];  [2];  [2];  [1];  [1];  [1];  [1];  [1];  [1];  [3];  [1];  [1];  [4];  [1];  [1];  [1];  [1];  [1] more »;  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [2];  [2];  [5];  [3] « less
  1. Peking Univ., Beijing (China)
  2. China Institute of Atomic Energy, Beijing (China)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Chinese Academy of Sciences (CAS), Beijing (China)
  5. Osaka Univ., Ibaraki (Japan); RIKEN Nishina Center, Saitama (Japan)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Key Research and Development Program of China; National Natural Science Foundation of China (NNSFC); USDOE
OSTI Identifier:
1562929
Grant/Contract Number:  
[AC02-06CH11357]
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
[ Journal Volume: 99; Journal Issue: 6]; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

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., and Chen, J. Investigation of the C14+α molecular configuration in O18 by means of transfer and sequential decay reaction. United States: N. p., 2019. Web. doi:10.1103/PhysRevC.99.064315.
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. Investigation of the C14+α molecular configuration in O18 by means of transfer and sequential decay reaction. United States. doi:10.1103/PhysRevC.99.064315.
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., and Chen, J. Wed . "Investigation of the C14+α molecular configuration in O18 by means of transfer and sequential decay reaction". United States. doi:10.1103/PhysRevC.99.064315.
@article{osti_1562929,
title = {Investigation of the C14+α molecular configuration in O18 by means of transfer and sequential decay reaction},
author = {Yang, B. and Ye, Y. L. and Feng, J. and Lin, C. J. and Jia, H. M. and Li, Z. H. and Lou, J. L. and Li, Q. T. and Ge, Y. C. and Yang, X. F. and Hua, H. and Li, J. and Zang, H. L. and Liu, Q. and Jiang, W. and Li, C. G. and Liu, Y. and Chen, Z. Q. and Wu, H. Y. and Wang, C. G. and Liu, W. and Wang, X. and Li, J. J. and Luo, D. W. and Jiang, Y. and Bai, S. W. and Xu, J. Y. and Ma, N. R. and Sun, L. J. and Wang, D. X. and Yang, Z. H. and Chen, J.},
abstractNote = {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.},
doi = {10.1103/PhysRevC.99.064315},
journal = {Physical Review C},
number = [6],
volume = [99],
place = {United States},
year = {2019},
month = {6}
}

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