Abstract
The excitation of the isoscalar giant monopole resonance (ISGMR) in 208Pb and 116Sn has been investigated using small-angle (including 0°) inelastic scattering of 100 MeV/u deuteron and multipole-decomposition analysis (MDA). The extracted strength distributions agree well with those from inelastic scattering of 100 MeV/u α particles. These measurements establish deuteron inelastic scattering at Ed∼100 MeV/u as a suitable probe for extraction of the ISGMR strength with MDA, making feasible the investigation of this resonance in radioactive isotopes in inverse kinematics.
Highlights
From measurements of the isoscalar giant monopole resonance (ISGMR) strengths in the series of stable isotopes of Sn ( Z = 50) and Cd ( Z = 48), the asymmetry term of the nuclear incompressibility, Kτ, has been extracted [7,8,9]. This asymmetry term is directly related to the symmetry energy, Esym, which is important in understanding the equation of state of dense asymmetric nuclear matter, as found in neutron stars, for example
In this Letter, we present results of the first giant resonance (GR) investigation with the deuteron probe at a beam energy amenable to reasonable cross-sections for excitations of the GR
The parameters of the other compression mode, the isoscalar giant dipole resonance (ISGDR), cannot be extracted in any meaningful way in the present measurements because only a very small part of the ISGDR strength distribution is covered within the experimental excitation energy range
Summary
Excitation of giant monopole resonance in Pb-208 and Sn-116 using inelastic deuteron scattering Patel, D.; Garg, U.; Itoh, M.; Akimune, H.; Berg, G. N.; Iwamoto, C.; Kawabata, T.; Kawase, K. Document Version Publisher's PDF, known as Version of record. Citation for published version (APA): Patel, D., Garg, U., Itoh, M., Akimune, H., Berg, G. N., Iwamoto, C., Kawabata, T., Kawase, K., Matta, J. Excitation of giant monopole resonance in Pb-208 and Sn-116 using inelastic deuteron scattering. More information can be found on the University of Groningen website: https://www.rug.nl/library/open-access/self-archiving-pure/taverneamendment. Take-down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim For technical reasons the number of authors shown on this cover page is limited to 10 maximum
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