PoS - Proceedings of Science
Volume 281 - The 26th International Nuclear Physics Conference (INPC2016) - Nuclear Reactions – Tuesday 13
Sign Of Enhanced Three Alpha Matter Radius In Alpha + 12C Inelastic Scattering
M. Ito,* M. Tomita, M. Iwasaki, R. Otani
*corresponding author
Full text: pdf
Pre-published on: May 04, 2017
Published on: May 09, 2017
Nuclear radius of three $\alpha$ rotational state in $^{12}$C with a life time of 10$^{-21}$ second,
which has been expected to have much more extended radius than the ground $^{12}$C
nucleus, is speculated from systematic analysis of the differential cross section of the $\alpha$ + $^{12}$C
inelastic scattering. Present analysis predicts about 0.6 $\sim$ 1.0 fm enhancement in the matter radius
of the three $\alpha$ rotational state in comparison to the normal radius of the ground state.
The spatial extension of the three $\alpha$ rotational state is comparable to the extended
radius observed in the neutron halo phenomena.
Constraint on the recent ab-initio calculation for the 3$\alpha$ states in $^{12}$C is also discussed.
DOI: https://doi.org/10.22323/1.281.0210
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