Rotational excitation of the Hoyle state in 12C

R. Garg; C. Barton; C. Aa Diget; S. Courtin; G. Fruet; H. O. U. Fynbo; A. M. Howard; A. Illana; D. G. Jenkins; I. Marroquin; O. S. Kirsebom; M. V. Lund; I. Moore; A. Perea; J. Refsgaard; J. E. Riley; S. Rinta-Antila; L. Sinclair; O. Tengblad

doi:10.1088/1742-6596/940/1/012043

Rotational excitation of the Hoyle state in ¹²C

R. Garg^*, C. Barton, C. Aa Diget, S. Courtin, G. Fruet, H. O. U. Fynbo, A. M. Howard, A. Illana, D. G. Jenkins, I. Marroquin, O. S. Kirsebom, M. V. Lund, I. Moore, A. Perea, J. Refsgaard, J. E. Riley, S. Rinta-Antila, L. Sinclair, O. Tengblad

^*Corresponding author for this work

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

Abstract

¹²C is synthesised in stars by fusion of three α particles. This process occurs through a resonance in the ¹²C nucleus, famously known as the Hoyle state. In this state, the ¹²C nucleus exists as a cluster of α particles. The state is the band-head for a rotational band with the 2⁺ rotational excitation predicted in the energy region 9 - 11 MeV. This rotational excitation can affect the triple-α process reaction rate by more than an order of magnitude at high temperatures (10⁹ K). Depending on the energy of the resonance, the knowledge of the state can also help determine the structure of the Hoyle state. In the work presented here, the state of interest is populated by beta decay of radioactive ¹²N ion beam delivered by the IGISOL facility at JYFL, Jyväskylä.

Original language	English
Article number	012043
Number of pages	3
Journal	Journal of Physics: Conference Series
Volume	940
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/940/1/012043
Publication status	Published - 31 Jan 2018

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10.1088/1742-6596/940/1/012043

Garg_2018_J._Phys.%3A_Conf._Ser._940_012043Final published version, 1.15 MBLicence: CC BY

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Garg, R., Barton, C., Aa Diget, C., Courtin, S., Fruet, G., Fynbo, H. O. U., Howard, A. M., Illana, A., Jenkins, D. G., Marroquin, I., Kirsebom, O. S., Lund, M. V., Moore, I., Perea, A., Refsgaard, J., Riley, J. E., Rinta-Antila, S., Sinclair, L., & Tengblad, O. (2018). Rotational excitation of the Hoyle state in ¹²C. Journal of Physics: Conference Series, 940(1), Article 012043. https://doi.org/10.1088/1742-6596/940/1/012043

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title = "Rotational excitation of the Hoyle state in 12C",

abstract = " 12C is synthesised in stars by fusion of three α particles. This process occurs through a resonance in the 12C nucleus, famously known as the Hoyle state. In this state, the 12C nucleus exists as a cluster of α particles. The state is the band-head for a rotational band with the 2+ rotational excitation predicted in the energy region 9 - 11 MeV. This rotational excitation can affect the triple-α process reaction rate by more than an order of magnitude at high temperatures (109 K). Depending on the energy of the resonance, the knowledge of the state can also help determine the structure of the Hoyle state. In the work presented here, the state of interest is populated by beta decay of radioactive 12N ion beam delivered by the IGISOL facility at JYFL, Jyv{\"a}skyl{\"a}.",

author = "R. Garg and C. Barton and {Aa Diget}, C. and S. Courtin and G. Fruet and Fynbo, {H. O. U.} and Howard, {A. M.} and A. Illana and Jenkins, {D. G.} and I. Marroquin and Kirsebom, {O. S.} and Lund, {M. V.} and I. Moore and A. Perea and J. Refsgaard and Riley, {J. E.} and S. Rinta-Antila and L. Sinclair and O. Tengblad",

year = "2018",

month = jan,

day = "31",

doi = "10.1088/1742-6596/940/1/012043",

language = "English",

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journal = "Journal of Physics: Conference Series",

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Garg, R, Barton, C , Aa Diget, C, Courtin, S, Fruet, G, Fynbo, HOU, Howard, AM, Illana, A, Jenkins, DG, Marroquin, I, Kirsebom, OS, Lund, MV, Moore, I, Perea, A, Refsgaard, J, Riley, JE, Rinta-Antila, S, Sinclair, L & Tengblad, O 2018, 'Rotational excitation of the Hoyle state in ¹²C', Journal of Physics: Conference Series, vol. 940, no. 1, 012043. https://doi.org/10.1088/1742-6596/940/1/012043

TY - JOUR

T1 - Rotational excitation of the Hoyle state in 12C

AU - Garg, R.

AU - Barton, C.

AU - Aa Diget, C.

AU - Courtin, S.

AU - Fruet, G.

AU - Fynbo, H. O. U.

AU - Howard, A. M.

AU - Illana, A.

AU - Jenkins, D. G.

AU - Marroquin, I.

AU - Kirsebom, O. S.

AU - Lund, M. V.

AU - Moore, I.

AU - Perea, A.

AU - Refsgaard, J.

AU - Riley, J. E.

AU - Rinta-Antila, S.

AU - Sinclair, L.

AU - Tengblad, O.

PY - 2018/1/31

Y1 - 2018/1/31

N2 - 12C is synthesised in stars by fusion of three α particles. This process occurs through a resonance in the 12C nucleus, famously known as the Hoyle state. In this state, the 12C nucleus exists as a cluster of α particles. The state is the band-head for a rotational band with the 2+ rotational excitation predicted in the energy region 9 - 11 MeV. This rotational excitation can affect the triple-α process reaction rate by more than an order of magnitude at high temperatures (109 K). Depending on the energy of the resonance, the knowledge of the state can also help determine the structure of the Hoyle state. In the work presented here, the state of interest is populated by beta decay of radioactive 12N ion beam delivered by the IGISOL facility at JYFL, Jyväskylä.

AB - 12C is synthesised in stars by fusion of three α particles. This process occurs through a resonance in the 12C nucleus, famously known as the Hoyle state. In this state, the 12C nucleus exists as a cluster of α particles. The state is the band-head for a rotational band with the 2+ rotational excitation predicted in the energy region 9 - 11 MeV. This rotational excitation can affect the triple-α process reaction rate by more than an order of magnitude at high temperatures (109 K). Depending on the energy of the resonance, the knowledge of the state can also help determine the structure of the Hoyle state. In the work presented here, the state of interest is populated by beta decay of radioactive 12N ion beam delivered by the IGISOL facility at JYFL, Jyväskylä.

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U2 - 10.1088/1742-6596/940/1/012043

DO - 10.1088/1742-6596/940/1/012043

M3 - Article

AN - SCOPUS:85042412330

SN - 1742-6588

VL - 940

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012043

ER -

Rotational excitation of the Hoyle state in 12C

Abstract

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Rotational excitation of the Hoyle state in ¹²C