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Volume 281 - The 26th International Nuclear Physics Conference (INPC2016) - Nuclear Structure B - Tuesday 13
Reaction Cross Section Of The Two-neutron Halo Nucleus 22C At 235 MeV/nucleon
Y. Togano,* T. Nakamura, Y. Kondo, N. Kobayashi, R. Tanaka, R. Minakata, S. Ogoshi, S. Nishi, D. Kanno, T. Nakashima, J. Tsubota, A. T. Saito, J. A. Tostevin, N. A. Orr, J. Gibelin, F. Delaunay, F. M. Marques, N. L. Achouri, S. Leblond, Q. Deshayes, K. Yoneda, T. Motobayashi, H. Otsu, T. Isobe, H. Baba, H. Sato, Y. Shimizu, T. Kubo, N. Inabe, N. Fukuda, D. Kameda, H. Suzuki, H. Takeda, J.H. Lee, P. Doornenbal, S. Takeuchi, T. Kobayashi, K. Takahashi, K. Muto, T. Murakami, N. Nakatsuka, Y. Sato, S. Kim, J. Hwang, T. Aumann, D. Murai, A. Navin, A. G. Tuff, M. Vandebrouck
*corresponding author
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Pre-published on: 2017 May 04
Published on: 2017 May 09
The reaction cross section ($\sigma_R$) of the very neutron-rich carbon isotope $^{22}$C has been measured on a carbon target at 235 MeV/nucleon. A $\sigma_R$ of $1.280 \pm 0.023$ b was obtained for $^{22}$C, significantly larger than those for the neighboring isotopes, supporting the halo character of $^{22}$C. A $^{22}$C root-mean-squared matter radius of $3.44 \pm 0.08$ fm was deduced using a four-body Glauber reaction model. This value is smaller than an earlier estimate of $5.4 \pm 0.9$ fm derived from a $\sigma_R$ measurement on a hydrogen target at 40 MeV/nucleon.
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