Measurements of reaction cross section and fragment momentum distribution for N=10 proton-rich isotones

W. Guo, D. Q. Fang, Y. G. Ma, C. W. Ma, K. Wang, T. Z. Yan, X. Z. Cai, W. Q. Shen, Z. Y. Sun, Z. Z. Ren, J. G. Chen, J. H. Chen, G. H. Liu, E. J. Ma, G. L. Ma, Y. Shi, Q. M. Su, W. D. Tian, H. W. Wang, C. ZhongJ. X. Zuo, M. Hosoi, T. Izumikawa, R. Kanungo, S. Nakajima, T. Ohnishi, T. Ohtsubo, A. Ozawa, T. Suda, K. Sugawara, T. Suzuki, A. Takisawa, K. Tanaka, T. Yamaguchi, I. Tanihata

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The longitudinal momentum (p//) distributions of fragments after one-proton removal and reaction cross sections (σR) for several N = 10 isotones at intermediate energy (∼ 70A MeV) have been measured simultaneously at the RIken Projectile fragment Separator (RIPS), p// was measured using a direct time-of-flight (TOP) technique, while σR was determined using a transmission method. An enhanced σR is observed for 23Al comparing with its neighbors. The p// distribution for 22Mg fragments from 23Al one-proton removal reaction has been obtained for the first time. The experimental data are discussed within a Few Body Glauber (FBG) framework. Analysis of p// indicates a dominant d-wave component in the ground state of 23Al. This agrees with recent experimental results. We also suggest the possibility of an enlarged 22Mg core for proton-rich nucleus 23Al.

Original languageEnglish
Pages (from-to)1523-1530
Number of pages8
JournalInternational Journal of Modern Physics E
Issue number7
Publication statusPublished - 2006 Oct


  • Few body glauber model
  • Longitudinal momentum distribution
  • Proton-rich nuclei
  • Reaction cross section


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