Exploring the αp-process with Grand Raiden

S. O'Brien, T. Adachi, G. P.A. Berg, M. Couder, M. Dozono, H. Fujita, Y. Fujita, J. Görres, K. Hatanaka, D. Ishikawa, T. Kubo, H. Matsubara, Y. Namiki, Y. Ohkuma, H. Okamura, H. J. Ong, D. Patel, Y. Sakemis, K. Sault, Y. ShimbaraS. Suzuki, T. Suzuki, A. Tamii, T. Wakasa, R. Wantanabe, M. Wiescher, R. Yamada, J. Zenihiro

Research output: Contribution to journalConference articlepeer-review

7 Scopus citations

Abstract

22Mg, 30S, 34Ar and 38Ca have been investigated using (p,t) reactions at RCNP with the intent of identifying energy levels in nuclei that determine the reaction rates along the pathway of the αp-process. These experiments exploit the high resolution and 0° capabilities of the Grand Raiden spectrometer and the WS beamline, which can deliver a fully dispersion matched beam to target. The level information is vital to understanding the nucleosynthesis occurring during explosive hydrogen burning, which, for example, is thought to occur during type I X-ray bursts. In the case of 22Mg, new reaction rate calculations have been performed for the 18Ne(α,p)21Na reaction. The experimental technique will be discussed, and the experimental results will be presented.

Original languageEnglish (US)
Pages (from-to)288-292
Number of pages5
JournalAIP Conference Proceedings
Volume1090
DOIs
StatePublished - 2009
Event13th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics - Cologne, Germany
Duration: Aug 25 2009Aug 29 2009

Keywords

  • Explosive hydrogen burning
  • Reaction rates
  • X-ray burst

ASJC Scopus subject areas

  • General Physics and Astronomy

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