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Title: Contribution from 3 alpha-Condensed States to the Triple-Alpha Reaction

Abstract

The alpha-condensed state in nuclear systems has been proposed by Tohsaki et al. and has given rise to interesting discussions. The Hoyle state of {sup 12}C has been studied as the most typical example of such an alpha-condensed state. A new resonant 0{sub 3}{sup +} state (E{sub r} = 1.66 MeV, GAMMA = 1.48 MeV) is predicted as an excited alpha-condensed state in addition to the second 0{sup +} state of the Hoyle state by calculations of the 3 alpha orthogonality condition model (3 alpha OCM) using the complex scaling method. Based on this result, the breakup strengths of the inversion reaction for sequential ({sup 8}Be+alpha->{sup 12}C+gamma) and direct (alpha+alpha+alpha->{sup 12}C+gamma) processes are calculated. It is discussed that a large reaction strength calculated recently by Ogata et al. in non-resonant energies is considered as a contribution from the excited 0{sub 3}{sup +} state.

Authors:
 [1];  [2];  [3]
  1. Division of Physics, Graduate School of Science, Hokkaido University, Sapporo 060-0810 (Japan)
  2. Department of Medical Physics for Advanced Radiotherapy, Graduate School of Medicine, Juntendo University, Tokyo 113-8421 (Japan)
  3. Disision of General Education, Nagaoka National College of Technology, Nagaoka 940-8532 (Japan)
Publication Date:
OSTI Identifier:
21362097
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1238; Journal Issue: 1; Conference: 7. Tours symposium on nuclear physics and astrophysics, Kobe (Japan), 16-20 Nov 2009; Other Information: DOI: 10.1063/1.3455924; (c) 2010 American Institute of Physics; Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALPHA PARTICLES; ALPHA REACTIONS; BERYLLIUM 8; BERYLLIUM 8 TARGET; CARBON 12; CLUSTER MODEL; MEV RANGE 01-10; RESONANCE; SCATTERING; ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; BERYLLIUM ISOTOPES; CARBON ISOTOPES; CHARGED PARTICLES; CHARGED-PARTICLE REACTIONS; ENERGY RANGE; EVEN-EVEN NUCLEI; IONIZING RADIATIONS; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL MODELS; MEV RANGE; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; RADIATIONS; RADIOISOTOPES; STABLE ISOTOPES; TARGETS

Citation Formats

Kato, Kiyoshi, Kurokawa, Chie, and Arai, Koji. Contribution from 3 alpha-Condensed States to the Triple-Alpha Reaction. United States: N. p., 2010. Web. doi:10.1063/1.3455924.
Kato, Kiyoshi, Kurokawa, Chie, & Arai, Koji. Contribution from 3 alpha-Condensed States to the Triple-Alpha Reaction. United States. https://doi.org/10.1063/1.3455924
Kato, Kiyoshi, Kurokawa, Chie, and Arai, Koji. 2010. "Contribution from 3 alpha-Condensed States to the Triple-Alpha Reaction". United States. https://doi.org/10.1063/1.3455924.
@article{osti_21362097,
title = {Contribution from 3 alpha-Condensed States to the Triple-Alpha Reaction},
author = {Kato, Kiyoshi and Kurokawa, Chie and Arai, Koji},
abstractNote = {The alpha-condensed state in nuclear systems has been proposed by Tohsaki et al. and has given rise to interesting discussions. The Hoyle state of {sup 12}C has been studied as the most typical example of such an alpha-condensed state. A new resonant 0{sub 3}{sup +} state (E{sub r} = 1.66 MeV, GAMMA = 1.48 MeV) is predicted as an excited alpha-condensed state in addition to the second 0{sup +} state of the Hoyle state by calculations of the 3 alpha orthogonality condition model (3 alpha OCM) using the complex scaling method. Based on this result, the breakup strengths of the inversion reaction for sequential ({sup 8}Be+alpha->{sup 12}C+gamma) and direct (alpha+alpha+alpha->{sup 12}C+gamma) processes are calculated. It is discussed that a large reaction strength calculated recently by Ogata et al. in non-resonant energies is considered as a contribution from the excited 0{sub 3}{sup +} state.},
doi = {10.1063/1.3455924},
url = {https://www.osti.gov/biblio/21362097}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1238,
place = {United States},
year = {Tue Jun 01 00:00:00 EDT 2010},
month = {Tue Jun 01 00:00:00 EDT 2010}
}