Candidate for the 2+ excited Hoyle state at Ex∼10 MeV in 12C

M. Itoh; H. Akimune; M. Fujiwara; U. Garg; N. Hashimoto; T. Kawabata; K. Kawase; S. Kishi; T. Murakami; K. Nakanishi; Y. Nakatsugawa; B. K. Nayak; S. Okumura; H. Sakaguchi; H. Takeda; S. Terashima; M. Uchida; Y. Yasuda; M. Yosoi; J. Zenihiro

doi:10.1103/PhysRevC.84.054308

Candidate for the 2⁺ excited Hoyle state at E_x∼10 MeV in ¹²C

M. Itoh, H. Akimune, M. Fujiwara, U. Garg, N. Hashimoto, T. Kawabata, K. Kawase, S. Kishi, T. Murakami, K. Nakanishi, Y. Nakatsugawa, B. K. Nayak, S. Okumura, H. Sakaguchi, H. Takeda, S. Terashima, M. Uchida, Y. Yasuda, M. Yosoi, J. Zenihiro

Cyclotron and Radioisotope Center (CYRIC)

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

195 Citations (Scopus)

Abstract

Inelastic scattering from ¹²C has been measured at extremely forward angles including 0 using 386 MeV α particles to study the α-cluster states around E_x ∼ 10 MeV, especially the 2 ⁺ state predicted by the α-cluster model. We have analyzed (α,α^′) cross-section data using both peak-fitting and multipole decomposition techniques. A 2⁺ state at E_x= 9.84 ± 0.06 MeV with a width of 1.01 ± 0.15 MeV is found to be submerged in the broad 0⁺ state at E_x= 9.93 ± 0.03 MeV with a width of 2.71 ± 0.08 MeV. This 2⁺ state may be interpreted as the 2⁺ excitation of the Hoyle state and the α-condensate state.

Original language	English
Article number	054308
Journal	Physical Review C - Nuclear Physics
Volume	84
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.84.054308
Publication status	Published - 2011 Nov 14

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Itoh, M., Akimune, H., Fujiwara, M., Garg, U., Hashimoto, N., Kawabata, T., Kawase, K., Kishi, S., Murakami, T., Nakanishi, K., Nakatsugawa, Y., Nayak, B. K., Okumura, S., Sakaguchi, H., Takeda, H., Terashima, S., Uchida, M., Yasuda, Y., Yosoi, M., & Zenihiro, J. (2011). Candidate for the 2⁺ excited Hoyle state at E_x∼10 MeV in ¹²C. Physical Review C - Nuclear Physics, 84(5), Article 054308. https://doi.org/10.1103/PhysRevC.84.054308

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title = "Candidate for the 2+ excited Hoyle state at Ex∼10 MeV in 12C",

abstract = "Inelastic scattering from 12C has been measured at extremely forward angles including 0 using 386 MeV α particles to study the α-cluster states around Ex ∼ 10 MeV, especially the 2 + state predicted by the α-cluster model. We have analyzed (α,α′) cross-section data using both peak-fitting and multipole decomposition techniques. A 2+ state at Ex= 9.84 ± 0.06 MeV with a width of 1.01 ± 0.15 MeV is found to be submerged in the broad 0+ state at Ex= 9.93 ± 0.03 MeV with a width of 2.71 ± 0.08 MeV. This 2+ state may be interpreted as the 2+ excitation of the Hoyle state and the α-condensate state.",

author = "M. Itoh and H. Akimune and M. Fujiwara and U. Garg and N. Hashimoto and T. Kawabata and K. Kawase and S. Kishi and T. Murakami and K. Nakanishi and Y. Nakatsugawa and Nayak, {B. K.} and S. Okumura and H. Sakaguchi and H. Takeda and S. Terashima and M. Uchida and Y. Yasuda and M. Yosoi and J. Zenihiro",

year = "2011",

month = nov,

day = "14",

doi = "10.1103/PhysRevC.84.054308",

language = "English",

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Itoh, M, Akimune, H, Fujiwara, M, Garg, U, Hashimoto, N, Kawabata, T, Kawase, K, Kishi, S, Murakami, T, Nakanishi, K, Nakatsugawa, Y, Nayak, BK, Okumura, S, Sakaguchi, H, Takeda, H, Terashima, S, Uchida, M, Yasuda, Y, Yosoi, M & Zenihiro, J 2011, 'Candidate for the 2⁺ excited Hoyle state at E_x∼10 MeV in ¹²C', Physical Review C - Nuclear Physics, vol. 84, no. 5, 054308. https://doi.org/10.1103/PhysRevC.84.054308

TY - JOUR

T1 - Candidate for the 2+ excited Hoyle state at Ex∼10 MeV in 12C

AU - Itoh, M.

AU - Akimune, H.

AU - Fujiwara, M.

AU - Garg, U.

AU - Hashimoto, N.

AU - Kawabata, T.

AU - Kawase, K.

AU - Kishi, S.

AU - Murakami, T.

AU - Nakanishi, K.

AU - Nakatsugawa, Y.

AU - Nayak, B. K.

AU - Okumura, S.

AU - Sakaguchi, H.

AU - Takeda, H.

AU - Terashima, S.

AU - Uchida, M.

AU - Yasuda, Y.

AU - Yosoi, M.

AU - Zenihiro, J.

PY - 2011/11/14

Y1 - 2011/11/14

N2 - Inelastic scattering from 12C has been measured at extremely forward angles including 0 using 386 MeV α particles to study the α-cluster states around Ex ∼ 10 MeV, especially the 2 + state predicted by the α-cluster model. We have analyzed (α,α′) cross-section data using both peak-fitting and multipole decomposition techniques. A 2+ state at Ex= 9.84 ± 0.06 MeV with a width of 1.01 ± 0.15 MeV is found to be submerged in the broad 0+ state at Ex= 9.93 ± 0.03 MeV with a width of 2.71 ± 0.08 MeV. This 2+ state may be interpreted as the 2+ excitation of the Hoyle state and the α-condensate state.

AB - Inelastic scattering from 12C has been measured at extremely forward angles including 0 using 386 MeV α particles to study the α-cluster states around Ex ∼ 10 MeV, especially the 2 + state predicted by the α-cluster model. We have analyzed (α,α′) cross-section data using both peak-fitting and multipole decomposition techniques. A 2+ state at Ex= 9.84 ± 0.06 MeV with a width of 1.01 ± 0.15 MeV is found to be submerged in the broad 0+ state at Ex= 9.93 ± 0.03 MeV with a width of 2.71 ± 0.08 MeV. This 2+ state may be interpreted as the 2+ excitation of the Hoyle state and the α-condensate state.

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JF - Physical Review C - Nuclear Physics

IS - 5

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ER -

Candidate for the 2⁺ excited Hoyle state at E_x∼10 MeV in ¹²C

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