Evidence of Soft Dipole Resonance inLi11with Isoscalar Character Academic Article uri icon

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abstract

  • The first conclusive evidence of a dipole resonance in ^{11}Li having isoscalar character observed from inelastic scattering with a novel solid deuteron target is reported. The experiment was performed at the newly commissioned IRIS facility at TRIUMF. The results show a resonance peak at an excitation energy of 1.03±0.03 MeV with a width of 0.51±0.11 MeV (FWHM). The angular distribution is consistent with a dipole excitation in the distorted-wave Born approximation framework. The observed resonance energy together with shell model calculations show the first signature that the monopole tensor interaction is important in ^{11}Li. The first ab initio calculations in the coupled cluster framework are also presented.

authors

  • Kanungo, R
  • Sanetullaev, A
  • Tanaka, J
  • Ishimoto, S
  • Hagen, G
  • Myo, T
  • Suzuki, T
  • Andreoiu, C
  • Bender, P
  • Chen, Alan
  • Davids, B
  • Fallis, J
  • Fortin, JP
  • Galinski, N
  • Gallant, AT
  • Garrett, PE
  • Hackman, G
  • Hadinia, B
  • Jansen, G
  • Keefe, M
  • Krücken, R
  • Lighthall, J
  • McNeice, E
  • Miller, D
  • Otsuka, T
  • Purcell, J
  • Randhawa, JS
  • Roger, T
  • Rojas, A
  • Savajols, H
  • Shotter, A
  • Tanihata, I
  • Thompson, IJ
  • Unsworth, C
  • Voss, P
  • Wang, Z

publication date

  • May 15, 2015