English

$2\alpha+t$ cluster structure in $^{11}$B

Nuclear Experiment 2010-10-27 v5 Nuclear Theory

Abstract

The cluster structures of the excited states in 11^{11}B are studied by analyzing the isoscalar monopole and quadrupole strengths in the 11^{11}B(dd,dd') reaction at Ed=200E_d=200 MeV. The excitation strengths are compared with the predictions by the shell-model and antisymmetrized molecular-dynamics (AMD) calculations. It is found that the large monopole strength for the 3/233/2^-_3 state at Ex=8.56E_x=8.56 MeV is well described by the AMD calculation and is an evidence for a developed 2α+t2\alpha+t cluster structure.

Keywords

Cite

@article{arxiv.nucl-ex/0512040,
  title  = {$2\alpha+t$ cluster structure in $^{11}$B},
  author = {T. Kawabata and H. Akimune and H. Fujita and Y. Fujita and M. Fujiwara and K. Hara and K. Hatanaka and M. Itoh and Y. Kanada-En'yo and S. Kishi and K. Nakanishi and H. Sakaguchi and Y. Shimbara and A. Tamii and S. Terashima and M. Uchida and T. Wakasa and Y. Yasuda and H. P. Yoshida and M. Yosoi},
  journal= {arXiv preprint arXiv:nucl-ex/0512040},
  year   = {2010}
}

Comments

Revised according to the referees' comments