Level density of 2+ states in 40Ca from high energy-resolution (p,p') experiments

Details Level density of 2+ states in 40Ca from high energy-resolution (p,p') experiments Level density of 2+ states in 40Ca from high energy-resolution (p,p') experiments

2011-10-07

arxiv.org/abs/1110.1586v2

Phys. Rev. C84, 054322 (2011)

Physics

Nuclear Physics

Nuclear Experiment

submitted to Phys. Rev. C, revised manuscript

Scientific paper

10.1103/PhysRevC.84.054322

The level density of 2+ states in 40Ca has been extracted in the energy region of the isoscalar giant quadrupole resonance (ISGQR) from a fluctuation analysis of high energy-resolution p,p') data taken at incident energies of 200 MeV at the K600 magnetic spectrometer of iThemba LABS, South Africa. Quasi-free scattering cross sections were calculated to estimate their role as a background contribution to the spectra and found to be small. The shape of the background was determined from the discrete wavelet transform of the spectra using a biorthogonal wavelet function normalized at the lowest particle separation threshold. The experimental results are compared to widely used phenomenological and microscopic models.

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