EPJ Web of Conferences
Volume 66, 2014INPC 2013 – International Nuclear Physics Conference
|Number of page(s)||4|
|Published online||20 March 2014|
Measurements of interaction cross sections for 22–35Na isotopes
1 Graduate School of Science, Niigata University, Niigata 950-2102, Japan
2 Gesellschaft für Schwerionenforschung GSI, 64291 Darmstadt, Germany
3 Department of Physics, Tokyo University of Science, Tokyo 278-8510, Japan
4 Department of Physics, Osaka University, Osaka 560-0043, Japan
5 Department of Physics, Saitama University, Saitama 338-8570, Japan
6 Institute of Physics, University of Tsukuba, Ibaraki 305-8571, Japan
7 Research Center for Nuclear Physics RCNP, Osaka 567-0047, Japan
8 RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
9 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
10 RI Center, Niigata University, Niigata 950-2102, Japan
11 School of Environmental Science and Engineering, Kochi 782-8502, Japan
a present address: National Institute of Radiological Sciences, Chiba 263-8555, Japan;e-mail: firstname.lastname@example.org
Published online: 20 March 2014
Interaction cross sections (σI) for 22−35Na isotopes from the stability line to the vicinity of the neutron drip line have been measured at around 240 MeV/nucleon. The σI for 33−35Na were measured for the first time. Enhancement in cross sections is clearly observed from the systematics for stable nuclei, for isotopes with large mass numbers. From the known values of the nuclear-deformation parameters β2 of 22−31Na, these enhancement can be mainly ascribed to the nuclear deformation. Large enhancement in heavier isotopes suggest that these nuclei are strongly deformed. The root-mean-square (RMS) nuclear matter radii were deduced from the σI by using Glauber-type calculation. Furthermore, a monotonic growth of the neutron-skin thickness has been deduced with increasing neutron number for Na isotopes.
© Owned by the authors, published by EDP Sciences, 2014
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