A Laplace-like formula for the energy dependence of the nuclear level density parameter

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CANBULA B., Bulur R., CANBULA D., BABACAN H.

Nuclear Physics A, cilt.929, ss.54-70, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 929
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.nuclphysa.2014.05.020
  • Dergi Adı: Nuclear Physics A
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.54-70
  • Anahtar Kelimeler: Nuclear level density, Semi-classical, Collective motion, Harmonic oscillator, Rotational modes, Vibrational modes
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

Collective effects in the level density are not well understood, and including these effects as enhancement factors to the level density does not produce sufficiently consistent predictions of observables. Therefore, collective effects are investigated in the level density parameter instead of treating them as a final factor in the level density. A new Laplace-like formula is proposed for the energy dependence of the level density parameter, including collective effects. A significant improvement has been achieved in agreement between observed and predicted energy levels. This new model can also be used in both structure and reaction calculations of the nuclei far from stability, especially near the drip lines.