Neutron halo in 14B studied via reaction cross sections

M. Fukuda; D. Nishimura; S. Suzuki; M. Tanaka; M. Takechi; K. Iwamoto; S. Wakabayashi; M. Yaguchi; J. Ohno; Y. Morita; Y. Kamisho; M. Mihara; K. Matsuta; M. Nagashima; T. Ohtsubo; T. Izumikawa; T. Ogura; K. Abe; N. Kikukawa; T. Sakai; D. Sera; T. Suzuki; T. Yamaguchi; K. Sato; H. Furuki; S. Miyazawa; N. Ichihashi; J. Kohno; S. Yamaki; A. Kitagawa; S. Sato; S. Fukuda

doi:10.1051/epjconf/20146602037

All issues

Volume 66 (2014)

EPJ Web of Conferences, 66 (2014) 02037

Abstract

Open Access

Issue		EPJ Web of Conferences Volume 66, 2014 INPC 2013 – International Nuclear Physics Conference


Article Number		02037
Number of page(s)		4
Section		Nuclear Structure
DOI		https://doi.org/10.1051/epjconf/20146602037
Published online		20 March 2014

EPJ Web of Conferences 66, 02037 (2014)
https://doi.org/10.1051/epjconf/20146602037

Neutron halo in ¹⁴B studied via reaction cross sections

M. Fukuda¹^a, D. Nishimura², S. Suzuki³, M. Tanaka¹, M. Takechi⁴, K. Iwamoto¹, S. Wakabayashi¹, M. Yaguchi¹, J. Ohno¹, Y. Morita¹, Y. Kamisho¹, M. Mihara¹, K. Matsuta¹, M. Nagashima³, T. Ohtsubo³, T. Izumikawa⁵, T. Ogura³, K. Abe³, N. Kikukawa³, T. Sakai³, D. Sera³, T. Suzuki⁶, T. Yamaguchi⁶, K. Sato⁶, H. Furuki⁶, S. Miyazawa⁶, N. Ichihashi⁶, J. Kohno⁶, S. Yamaki⁶, A. Kitagawa⁷, S. Sato⁷ and S. Fukuda⁷

¹ Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
² Department of Physics, Tokyo University of Science, Noda 278-8510, Japan
³ Department of Physics, Niigata University, Niigata 950-2102, Japan
⁴ Gesellschaft für Schwerionenforschung GSI, 64291 Darmstadt, Germany
⁵ RI center, Niigata University, Niigata 951-8510, Japan
⁶ Department of Physics, Saitama University, Saitama 338-3570, Japan
⁷ National Institute of Radiological Sciences, Chiba 263-8555, Japan

^a e-mail: mfukuda@phys.sci.osaka-u.ac.jp

Published online: 20 March 2014

Abstract

Reaction cross sections (σ_R) for the neutron-rich nucleus ¹⁴B on Be, C, and Al targets have been measured at several energies in the intermediate energy range of 45–120 MeV/nucleon. The present experimental σ_R show a significant enhancement relative to the systematics of stable nuclei. The nucleon density distribution was deduced through the fitting procedure with the modified Glauber calculation. The necessity of a long tail in the density distribution was found, which is consistent with the valence neutron in 2s_1/2 orbital with the small empirical one-neutron separation energy in ¹⁴B.

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