Effects of the in-medium NN interaction on total reaction and neutron removal cross sections
Warner, RE, Thompson, IJ and Tostevin, JA (2002) Effects of the in-medium NN interaction on total reaction and neutron removal cross sections PHYSICAL REVIEW C, 65 (4). ? - ?. ISSN 0556-2813
Available under License : See the attached licence file.
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Official URL: http://dx.doi.org/10.1103/PhysRevC.65.044617
We discuss calculations of total reaction cross sections between complex nuclei, R , using optical limit and few-body Glauber models in which the free nucleon-nucleon cross sections NN are replaced by their reduced values in the nuclear medium. This replacement lowers R by at most a few percent when NN is determined from the local matter density in each overlapping volume element of the significant projectile-target trajectories. This relatively small effect contrasts with reductions of about 10% in R reported by Xiangzhou et al., who assume a global value for the matter density throughout the interaction region. For two-neutron halo nuclei, we investigate the significance of these in-medium effects for the neutron-removal cross sections, 2n . We show that use of an in-medium NN raises 2n for 6He but lowers it for 11Li, because of their different halo sizes.
|Uncontrolled Keywords:||Science & Technology, Physical Sciences, Physics, Nuclear, Physics, HALO NUCLEI, MICROSCOPIC CALCULATION, ION COLLISIONS, LIGHT-NUCLEI, RADII, MODEL, LI-11, MATTER, STATES|
|Divisions:||Faculty of Engineering and Physical Sciences > Physics|
|Deposited By:||Symplectic Elements|
|Deposited On:||16 Nov 2011 10:34|
|Last Modified:||15 May 2013 14:35|
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