Observation of a large reaction cross section in the drip-line nucleus C22

K. Tanaka; T. Yamaguchi; T. Suzuki; T. Ohtsubo; M. Fukuda; D. Nishimura; M. Takechi; K. Ogata; A. Ozawa; T. Izumikawa; T. Aiba; N. Aoi; H. Baba; Y. Hashizume; K. Inafuku; N. Iwasa; K. Kobayashi; M. Komuro; Y. Kondo; T. Kubo; M. Kurokawa; T. Matsuyama; S. Michimasa; T. Motobayashi; T. Nakabayashi; S. Nakajima; T. Nakamura; H. Sakurai; R. Shinoda; M. Shinohara; H. Suzuki; E. Takeshita; S. Takeuchi; Y. Togano; K. Yamada; T. Yasuno; M. Yoshitake

doi:10.1103/PhysRevLett.104.062701

Observation of a large reaction cross section in the drip-line nucleus C22

K. Tanaka, T. Yamaguchi, T. Suzuki, T. Ohtsubo, M. Fukuda, D. Nishimura, M. Takechi, K. Ogata, A. Ozawa, T. Izumikawa, T. Aiba, N. Aoi, H. Baba, Y. Hashizume, K. Inafuku, N. Iwasa, K. Kobayashi, M. Komuro, Y. Kondo, T. KuboM. Kurokawa, T. Matsuyama, S. Michimasa, T. Motobayashi, T. Nakabayashi, S. Nakajima, T. Nakamura, H. Sakurai, R. Shinoda, M. Shinohara, H. Suzuki, E. Takeshita, S. Takeuchi, Y. Togano, K. Yamada, T. Yasuno, M. Yoshitake

SCI - Physics

Research output: Contribution to journal › Article › peer-review

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Abstract

Reaction cross sections (σR) for C19, C20 and the drip-line nucleus C22 on a liquid hydrogen target have been measured at around 40AMeV by a transmission method. A large enhancement of σR for C22 compared to those for neighboring C isotopes was observed. Using a finite-range Glauber calculation under an optical-limit approximation the rms matter radius of C22 was deduced to be 5.4±0.9fm. It does not follow the systematic behavior of radii in carbon isotopes with N≤14, suggesting a neutron halo. It was found by an analysis based on a few-body Glauber calculation that the two-valence neutrons in C22 preferentially occupy the 1s1/2 orbital.

Original language	English
Article number	062701
Journal	Physical review letters
Volume	104
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.104.062701
Publication status	Published - 2010 Feb 8

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.104.062701

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Tanaka, K., Yamaguchi, T., Suzuki, T., Ohtsubo, T., Fukuda, M., Nishimura, D., Takechi, M., Ogata, K., Ozawa, A., Izumikawa, T., Aiba, T., Aoi, N., Baba, H., Hashizume, Y., Inafuku, K., Iwasa, N., Kobayashi, K., Komuro, M., Kondo, Y., ... Yoshitake, M. (2010). Observation of a large reaction cross section in the drip-line nucleus C22. Physical review letters, 104(6), [062701]. https://doi.org/10.1103/PhysRevLett.104.062701

Tanaka, K, Yamaguchi, T, Suzuki, T, Ohtsubo, T, Fukuda, M, Nishimura, D, Takechi, M, Ogata, K, Ozawa, A, Izumikawa, T, Aiba, T, Aoi, N, Baba, H, Hashizume, Y, Inafuku, K, Iwasa, N, Kobayashi, K, Komuro, M, Kondo, Y, Kubo, T, Kurokawa, M, Matsuyama, T, Michimasa, S, Motobayashi, T, Nakabayashi, T, Nakajima, S, Nakamura, T, Sakurai, H, Shinoda, R, Shinohara, M, Suzuki, H, Takeshita, E, Takeuchi, S, Togano, Y, Yamada, K, Yasuno, T & Yoshitake, M 2010, 'Observation of a large reaction cross section in the drip-line nucleus C22', Physical review letters, vol. 104, no. 6, 062701. https://doi.org/10.1103/PhysRevLett.104.062701

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title = "Observation of a large reaction cross section in the drip-line nucleus C22",

abstract = "Reaction cross sections (σR) for C19, C20 and the drip-line nucleus C22 on a liquid hydrogen target have been measured at around 40AMeV by a transmission method. A large enhancement of σR for C22 compared to those for neighboring C isotopes was observed. Using a finite-range Glauber calculation under an optical-limit approximation the rms matter radius of C22 was deduced to be 5.4±0.9fm. It does not follow the systematic behavior of radii in carbon isotopes with N≤14, suggesting a neutron halo. It was found by an analysis based on a few-body Glauber calculation that the two-valence neutrons in C22 preferentially occupy the 1s1/2 orbital.",

author = "K. Tanaka and T. Yamaguchi and T. Suzuki and T. Ohtsubo and M. Fukuda and D. Nishimura and M. Takechi and K. Ogata and A. Ozawa and T. Izumikawa and T. Aiba and N. Aoi and H. Baba and Y. Hashizume and K. Inafuku and N. Iwasa and K. Kobayashi and M. Komuro and Y. Kondo and T. Kubo and M. Kurokawa and T. Matsuyama and S. Michimasa and T. Motobayashi and T. Nakabayashi and S. Nakajima and T. Nakamura and H. Sakurai and R. Shinoda and M. Shinohara and H. Suzuki and E. Takeshita and S. Takeuchi and Y. Togano and K. Yamada and T. Yasuno and M. Yoshitake",

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doi = "10.1103/PhysRevLett.104.062701",

language = "English",

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T1 - Observation of a large reaction cross section in the drip-line nucleus C22

AU - Tanaka, K.

AU - Yamaguchi, T.

AU - Suzuki, T.

AU - Ohtsubo, T.

AU - Fukuda, M.

AU - Nishimura, D.

AU - Takechi, M.

AU - Ogata, K.

AU - Ozawa, A.

AU - Izumikawa, T.

AU - Aiba, T.

AU - Aoi, N.

AU - Baba, H.

AU - Hashizume, Y.

AU - Inafuku, K.

AU - Iwasa, N.

AU - Kobayashi, K.

AU - Komuro, M.

AU - Kondo, Y.

AU - Kubo, T.

AU - Kurokawa, M.

AU - Matsuyama, T.

AU - Michimasa, S.

AU - Motobayashi, T.

AU - Nakabayashi, T.

AU - Nakajima, S.

AU - Nakamura, T.

AU - Sakurai, H.

AU - Shinoda, R.

AU - Shinohara, M.

AU - Suzuki, H.

AU - Takeshita, E.

AU - Takeuchi, S.

AU - Togano, Y.

AU - Yamada, K.

AU - Yasuno, T.

AU - Yoshitake, M.

PY - 2010/2/8

Y1 - 2010/2/8

N2 - Reaction cross sections (σR) for C19, C20 and the drip-line nucleus C22 on a liquid hydrogen target have been measured at around 40AMeV by a transmission method. A large enhancement of σR for C22 compared to those for neighboring C isotopes was observed. Using a finite-range Glauber calculation under an optical-limit approximation the rms matter radius of C22 was deduced to be 5.4±0.9fm. It does not follow the systematic behavior of radii in carbon isotopes with N≤14, suggesting a neutron halo. It was found by an analysis based on a few-body Glauber calculation that the two-valence neutrons in C22 preferentially occupy the 1s1/2 orbital.

AB - Reaction cross sections (σR) for C19, C20 and the drip-line nucleus C22 on a liquid hydrogen target have been measured at around 40AMeV by a transmission method. A large enhancement of σR for C22 compared to those for neighboring C isotopes was observed. Using a finite-range Glauber calculation under an optical-limit approximation the rms matter radius of C22 was deduced to be 5.4±0.9fm. It does not follow the systematic behavior of radii in carbon isotopes with N≤14, suggesting a neutron halo. It was found by an analysis based on a few-body Glauber calculation that the two-valence neutrons in C22 preferentially occupy the 1s1/2 orbital.

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Observation of a large reaction cross section in the drip-line nucleus C22

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