Reexamination of the excited states of C12

M. Freer; I. Boztosun; C. A. Bremner; S. P.G. Chappell; R. L. Cowin; G. K. Dillon; B. R. Fulton; B. J. Greenhalgh; T. Munoz-Britton; M. P. Nicoli; W. D.M. Rae; S. M. Singer; N. Sparks; D. L. Watson; D. C. Weisser

doi:10.1103/PhysRevC.76.034320

Reexamination of the excited states of C12

M. Freer^*, I. Boztosun, C. A. Bremner, S. P.G. Chappell, R. L. Cowin, G. K. Dillon, B. R. Fulton, B. J. Greenhalgh, T. Munoz-Britton, M. P. Nicoli, W. D.M. Rae, S. M. Singer, N. Sparks, D. L. Watson, D. C. Weisser

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

92 Citations (Scopus)

Abstract

An analysis of the C12(C12,3α)C12 reaction was made at beam energies between 82 and 106 MeV. Decays to both the ground state and the excited states of Be8 were isolated, allowing states of different characters to be identified. In particular, evidence was found for a previously observed state at 11.16 MeV. An analysis of the angular distributions of the unnatural parity states at 11.83 and 13.35 MeV, previously assigned Jπ=2-, calls into question the validity of these assignments, suggesting that at least one of the states may correspond to Jπ=4-. Evidence is also found for 1- and 3- strengths associated with broad states between 11 and 14 MeV.

Original language	English
Article number	034320
Journal	Physical Review C - Nuclear Physics
Volume	76
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.76.034320
Publication status	Published - 24 Sept 2007

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Freer, M., Boztosun, I., Bremner, C. A., Chappell, S. P. G., Cowin, R. L., Dillon, G. K., Fulton, B. R., Greenhalgh, B. J., Munoz-Britton, T., Nicoli, M. P., Rae, W. D. M., Singer, S. M., Sparks, N., Watson, D. L., & Weisser, D. C. (2007). Reexamination of the excited states of C12. Physical Review C - Nuclear Physics, 76(3), Article 034320. https://doi.org/10.1103/PhysRevC.76.034320

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title = "Reexamination of the excited states of C12",

abstract = "An analysis of the C12(C12,3α)C12 reaction was made at beam energies between 82 and 106 MeV. Decays to both the ground state and the excited states of Be8 were isolated, allowing states of different characters to be identified. In particular, evidence was found for a previously observed state at 11.16 MeV. An analysis of the angular distributions of the unnatural parity states at 11.83 and 13.35 MeV, previously assigned Jπ=2-, calls into question the validity of these assignments, suggesting that at least one of the states may correspond to Jπ=4-. Evidence is also found for 1- and 3- strengths associated with broad states between 11 and 14 MeV.",

author = "M. Freer and I. Boztosun and Bremner, {C. A.} and Chappell, {S. P.G.} and Cowin, {R. L.} and Dillon, {G. K.} and Fulton, {B. R.} and Greenhalgh, {B. J.} and T. Munoz-Britton and Nicoli, {M. P.} and Rae, {W. D.M.} and Singer, {S. M.} and N. Sparks and Watson, {D. L.} and Weisser, {D. C.}",

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day = "24",

doi = "10.1103/PhysRevC.76.034320",

language = "English",

volume = "76",

journal = "Physical Review C - Nuclear Physics",

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AU - Freer, M.

AU - Boztosun, I.

AU - Bremner, C. A.

AU - Chappell, S. P.G.

AU - Cowin, R. L.

AU - Dillon, G. K.

AU - Fulton, B. R.

AU - Greenhalgh, B. J.

AU - Munoz-Britton, T.

AU - Nicoli, M. P.

AU - Rae, W. D.M.

AU - Singer, S. M.

AU - Sparks, N.

AU - Watson, D. L.

AU - Weisser, D. C.

PY - 2007/9/24

Y1 - 2007/9/24

N2 - An analysis of the C12(C12,3α)C12 reaction was made at beam energies between 82 and 106 MeV. Decays to both the ground state and the excited states of Be8 were isolated, allowing states of different characters to be identified. In particular, evidence was found for a previously observed state at 11.16 MeV. An analysis of the angular distributions of the unnatural parity states at 11.83 and 13.35 MeV, previously assigned Jπ=2-, calls into question the validity of these assignments, suggesting that at least one of the states may correspond to Jπ=4-. Evidence is also found for 1- and 3- strengths associated with broad states between 11 and 14 MeV.

AB - An analysis of the C12(C12,3α)C12 reaction was made at beam energies between 82 and 106 MeV. Decays to both the ground state and the excited states of Be8 were isolated, allowing states of different characters to be identified. In particular, evidence was found for a previously observed state at 11.16 MeV. An analysis of the angular distributions of the unnatural parity states at 11.83 and 13.35 MeV, previously assigned Jπ=2-, calls into question the validity of these assignments, suggesting that at least one of the states may correspond to Jπ=4-. Evidence is also found for 1- and 3- strengths associated with broad states between 11 and 14 MeV.

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U2 - 10.1103/PhysRevC.76.034320

DO - 10.1103/PhysRevC.76.034320

M3 - Article

SN - 0556-2813

VL - 76

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

M1 - 034320

ER -

Reexamination of the excited states of C12

Abstract

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