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Artemenkov, D. A., Bradnova, V., Britvich, G. I., Firu, E., Haiduc, M., Kalinin, V. A., Kharlamov, S. P., Kornegrutsa, N. K., Kostin, M. Y., Maksimov, A. V., Mitseva, E., Neagu, A., Pikalov, V. A., Polkovnikov, M. K., Rusakova, V. V., Stanoeva, R., Zaitsev, A. A., Zarubin, P. I., & Zarubina, I. G. (2018). Nuclear Track Emulsion in Search for the Hoyle’s State in Dissociation of Relativistic 12C Nuclei. KnE Energy, 3(1), 89–96. https://doi.org/10.18502/ken.v3i1.1728

https://doi.org/10.18502/ken.v3i1.1728

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authors

  • D A Artemenkov
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  • V Bradnova
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  • G I Britvich
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  • E Firu
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  • M Haiduc
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  • V A Kalinin
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  • S P Kharlamov
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  • N K Kornegrutsa
    No author data available.
  • M Y Kostin
    No author data available.
  • A V Maksimov
    No author data available.
  • E Mitseva
    No author data available.
  • A Neagu
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  • V A Pikalov
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  • M K Polkovnikov
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  • V V Rusakova
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  • R Stanoeva
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  • A A Zaitsev
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  • P I Zarubin
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  • I G Zarubina
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Published Date

  • Apr 9, 2018

Nuclear Track Emulsion in Search for the Hoyle’s State in Dissociation of Relativistic 12C Nuclei

KnE Energy / The 3rd International Conference on Particle Physics and Astrophysics (ICPPA) / Pages 89–96

Abstract

Study of production of ensembles of alpha-particle triples associated with the Hoyle state (the second excited state 0+ 2 of the 12 C nucleus) in peripheral dissociation of relativistic 12C nuclei is started. Stacks of pellicles of nuclear track emulsion exposed to 12C of energy from hundreds MeV to few GeV per nucleon serve as the material of the study. The Hoyle state decays are reconstructed via measurements of emission angles of α-particles with accuracy that allows one to identify the unstable 8Be nucleus. A role in the Hoyle state of alpha-particle bonds corresponding to 8Be is determined.

References
[1] The BECQUEREL Project WEB site: http://becquerel.jinr.ru/


[2] Zarubin, P.I., 2013. «Tomography» of the cluster structure of light nuclei via relativistic dissociation. Lect. Notes in Phys, 875, Clusters in Nuclei, Vol. 3, 51–93; Springer Int. Publ;. DOI: 10.1007/978-3-319-01077-9_3; arXiv:1309.4881.


[3] Artemenkov, D.A., Zaitsev, A.A., Zarubin, P.I. 2017. Unstable nuclei in dissociation of light stable and radioactive nuclei in nuclear track emulsion. Phys. Part. Nucl. 48, 147–157; DOI: 10.1134/S1063779617010026; arXiv: 1607.08020[4] Freer, M., Fynbo, H.O.U., 2014. The Hoyle state in 12C. Prog, in Part. and Nucl. Phys. 78, 1–23; DOI: 10.1016/j.ppnp.2014.06.001.


[5] Tohsaki, A., Horiuchi, H., Schuck, P., and Ropke, G., 2017. Status of α- particle condensate structure of the Hoyle state. Rev. Mod. Phys. 89. 011002; DOI:10.1103/RevModPhys.89.011002.


[6] Belaga, V.V., Benjaza, A.A., Rusakova, V.V., Salomov, D.A.,. Chernov, G.M., 1905. Coherent dissociation 12C → 3α in lead-enriched emulsion at 4.5 GeV/c per Nucleon. Phys. Atom. Nucl., 58, 1905–1910; DOI: 10.1063/7788 1905(95)5811-5.; arXiv:1109.0817.


[7] Belaga, V.V., Benjaza, A.A., Chernov, G.M., Rusakova, V.V., Salomov, D.A., 1905. A study of coherent dissociation 12C → 3α in usual and enriched by Pb emulsion. Nucl. Tracks Rad. Meas., 25, 271–272;


[8] Belaga, V.V., Gerasimov, S.G., Dronov, V.A., Peresadko„ N.G., Pisetskaya, A.V., Rusakova V.V.,. Fetisov, V.N, Kharlamov, S.P., and Shesterkina, L.N., 2017. Coherent fragmentation of 12C nuclei of momentum 4.5 GeV/c per nucleon through the 8Be