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

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