Charge-changing cross sections for Ca 42-51 and effect of charged-particle evaporation induced by neutron-removal reactions
Tanaka M. Takechi M. Homma A. Prochazka A. Fukuda M. Nishimura D. Suzuki T. Moriguchi T. Ahn D.S. Aimaganbetov A. Amano M. Arakawa H. Bagchi S. Behr K.-H. Burtebayev N. Chikaato K. Du H. Fujii T. Fukuda N. Geissel H. Hori T. Hoshino S. Igosawa R. Ikeda A. Inabe N. Inomata K. Itahashi K. Izumikawa T. Kamioka D. Kanda N. Kato I. Kenzhina I. Korkulu Z. Kuk Y. Kusaka K. Matsuta K. Mihara M. Miyata E. Nagae D. Nakamura S. Nassurlla M. Nishimuro K. Nishizuka K. Ohnishi K. Ohtake M. Ohtsubo T. Omika S. Ong H.J. Ozawa A. Sakurai H. Scheidenberger C. Shimizu Y. Sugihara T. Sumikama T. Suzuki H. Suzuki S. Takeda H. Tanaka Y. Tanaka Y.K. Tanihata I. Wada T. Wakayama K. Yagi S. Yamaguchi T. Yanagihara R. Yanagisawa Y. Yoshida K. Zholdybayev T.K.
July 2022American Physical Society
Physical Review C
2022#106Issue 1
Charge-changing cross sections σCC for Ca42-51 on a carbon target at around 280 MeV/nucleon have been measured. Though the existing point-proton radii rp of Ca isotopes increase as the neutron number increases, the measured σCC data show a significant decrease, which is against the expectation from a simple Glauber-like model. We found that this observed phenomenon could be attributed to the charged-particle evaporation effect induced by the neutron-removal reaction. By taking the evaporation effect into account, various σCC data sets for nuclides from C to Fe isotopes on C12 measured at around 280 MeV/nucleon are reproduced with a standard deviation of 1.6%. It is also clarified that this evaporation effect becomes negligibly small in the neutron-rich region. The evaluated relation between σCC and rp using the current model indicates that σCC data for neutron-rich Ca isotopes (A≥51) are highly sensitive to rp. This high sensitivity potentially allows one to determine the rp of very neutron-rich nuclei.
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RIKEN Nishina Center, Saitama, Wako, 351-0198, Japan
Department of Physics, Osaka University, Osaka, Toyonaka, 560-0043, Japan
Department of Physics, Niigata University, Ikarashi, Niigata, 951-2181, Japan
GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, 64291, Germany
Department of Physics, Tokyo City University, Setagaya, Tokyo, 158-8557, Japan
Department of Physics, Saitama University, Saitama, 338-8570, Japan
Institute of Physics, University of Tsukuba, Ibaraki, Tsukuba, 305-8571, Japan
Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
L.N. Gumilyov Eurasian National University, Astana, 010008, Kazakhstan
Astronomy and Physics Department, Saint Marys University, Halifax, B3H 3C3, NS, Canada
Justus Liebig University, Giessen, 35392, Germany
Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Institute for Research Promotion, Niigata University, Niigata, 950-8510, Japan
Center for Exotic Nuclear Studies, Institute for Basic Science, Daejeon, 34126, South Korea
Research Center for Superheavy Elements, Kyushu University, Fukuoka, 819-0395, Japan
Research Center for Nuclear Physics, Osaka University, Osaka, Ibaraki, 567-0047, Japan
Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan
School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191, China
Indian Institute of Technology, Indian School of Mines, Jharkhand, Dhanbad, 826004, India
RIKEN Nishina Center
Department of Physics
Department of Physics
GSI Helmholtzzentrum für Schwerionenforschung
Department of Physics
Department of Physics
Institute of Physics
Institute of Nuclear Physics
L.N. Gumilyov Eurasian National University
Astronomy and Physics Department
Justus Liebig University
Al-Farabi Kazakh National University
Institute for Research Promotion
Center for Exotic Nuclear Studies
Research Center for Superheavy Elements
Research Center for Nuclear Physics
Department of Physics
School of Physics and Nuclear Energy Engineering
Indian Institute of Technology
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