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Polarization charge of particles near threshold due to the coupling to shape oscillations

Hamamoto-Kuroda, Ikuko LU (2002) Proceedings of International Symposium on Nuclear Electro-Weak Spectroscopy (NEWS 99) for Symmetries and Electro-Weak Nuclear-Processes In Proceedings of the International Symposium on Nuclear Electro-Weak Spectroscopy for Symmetries in Electro-Weak Nuclear-Processes. in Honor of Professor Hiro Ejiri p.261-266
Abstract
It is shown that the isoscalar strength in the energy region just above the low energy threshold, which is created by exciting particles to the continuum in nuclei far from β-stability lines, can be reduced by the attractive coupling to isoscalar shape oscillations. This is in contrast to the well known fact that in β-stable nuclei low lying isoscalar particle hole strengths are always increased by the attractive isoscalar coupling, which leads to an appreciable amount of positive polarization charge. On the other hand, the core polarization effect on bound particles with l=0 and 1 is always positive, but vanishes as the binding energy approaches to zero
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
core polarization effect, low lying isoscalar particle hole strengths, beta stable nuclei, coupling to isoscalar shape oscillations, nuclei far from beta stability line, continuum state, particles excitation, low energy threshold, particles positive polarization charge, near threshold, zero binding energy, bound particles, Woods-Saxon potential
in
Proceedings of the International Symposium on Nuclear Electro-Weak Spectroscopy for Symmetries in Electro-Weak Nuclear-Processes. in Honor of Professor Hiro Ejiri
pages
261 - 266
publisher
World Scientific
conference name
Proceedings of International Symposium on Nuclear Electro-Weak Spectroscopy (NEWS 99) for Symmetries and Electro-Weak Nuclear-Processes
ISBN
981-238-125-2
language
English
LU publication?
yes
id
b5d69b59-c161-4a7a-a5a4-c200fc7a2607 (old id 610692)
date added to LUP
2007-11-27 14:11:25
date last changed
2016-09-29 10:14:48
@misc{b5d69b59-c161-4a7a-a5a4-c200fc7a2607,
  abstract     = {It is shown that the isoscalar strength in the energy region just above the low energy threshold, which is created by exciting particles to the continuum in nuclei far from β-stability lines, can be reduced by the attractive coupling to isoscalar shape oscillations. This is in contrast to the well known fact that in β-stable nuclei low lying isoscalar particle hole strengths are always increased by the attractive isoscalar coupling, which leads to an appreciable amount of positive polarization charge. On the other hand, the core polarization effect on bound particles with l=0 and 1 is always positive, but vanishes as the binding energy approaches to zero},
  author       = {Hamamoto-Kuroda, Ikuko},
  isbn         = {981-238-125-2},
  keyword      = {core polarization effect,low lying isoscalar particle hole strengths,beta stable nuclei,coupling to isoscalar shape oscillations,nuclei far from beta stability line,continuum state,particles excitation,low energy threshold,particles positive polarization charge,near threshold,zero binding energy,bound particles,Woods-Saxon potential},
  language     = {eng},
  pages        = {261--266},
  publisher    = {ARRAY(0xb25ca50)},
  series       = {Proceedings of the International Symposium on Nuclear Electro-Weak Spectroscopy for Symmetries in Electro-Weak Nuclear-Processes. in Honor of Professor Hiro Ejiri},
  title        = {Polarization charge of particles near threshold due to the coupling to shape oscillations},
  year         = {2002},
}