Direct measurement of 4 He( 12 C, 16 O)γ reaction at KUTL

Kunihiro Fujita, K. Sagara, Takashi Teranishi, T. Goto, R. Iwabuchi, S. Matsuda, K. Nakano, N. Oba, M. Taniguchi, H. Yamaguchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A 12 C+ 4 He→ 16 O+γ is regarded as the very important reaction to know the evolution of heavy stars. The cross section is, however, still unknown in spite of more than 40 years experiment in the world because of an existence of a resonance state of 16 O at sub-threshold region. A cross section measurement with the direct detection of the produced 16 O from E cm = 2.4 downto 0.7 MeV have been planned at Kyushu University Tandem Laboratory(KUTL). Detection of the 16 O is the most possible method at low energy, since a detection efficiency of the 16 O is very high. The new windowless blow-in gas target was developed to achieve the pressure of 24 Torr. Many movable slit were installed in a recoil mass separator, so that the backgrounds generated by the 12 C beam was eliminated effectively. The results of recent experiments at E cm =2.4 and 1.5MeV are reported.

Original languageEnglish
Title of host publicationTours Symposium on Nuclear Physics and Astrophysics - VII
Number of pages3
Publication statusPublished - Jul 20 2010
Event7th Tours Symposium on Nuclear Physics and Astrophysics - Kobe, Japan
Duration: Nov 16 2009Nov 20 2009

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Other7th Tours Symposium on Nuclear Physics and Astrophysics

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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