Level density of 2+ states in 40Ca from high energy-resolution (p,p') experiments
Abstract
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.
Keywords
Cite
@article{arxiv.1110.1586,
title = {Level density of 2+ states in 40Ca from high energy-resolution (p,p') experiments},
author = {I. Usman and Z. Buthelezi and J. Carter and G. R. J. Cooper and R. W. Fearick and S. V. Förtsch and H. Fujita and Y. Kalmykov and P. von Neumann-Cosel and R. Neveling and I. Poltoratska and A. Richter and A. Shevchenko and E. Sideras-Haddad and F. D. Smit and J. Wambach},
journal= {arXiv preprint arXiv:1110.1586},
year = {2011}
}
Comments
submitted to Phys. Rev. C, revised manuscript