Unexpected Characteristics of the Isoscalar Monopole Resonances in the ${A}\sim90$ region -- Implications for Nuclear Incompressibility
| Pub type: | Inproceedings |
| Citation: | krishichayan2012unexpected |
| Status: | Published |
| Journal: | Proceedings of the DAE Symposium on Nuclear Physics |
| Volume: | 57 |
| Year: | 2012 |
| Month: | December |
| Pages: | 80 |
| Abstract: | The isoscalar giant monopole resonances (ISGMR) in 90,92,94Zr and 92,96Mo have been studied with inelastic scattering of 240 MeV α particles at small angles including 0o. Strength corresponding to approximately 100% of the ISGMR (E0) energy-weighted sum rule was identified in each nucleus. In all cases the strength consisted of two components separated by 7-9 MeV. Except for the mass 92 nuclei, the upper component contained 14-22% of the E0 energy weighted sum rule (EWSR), however 38% and 65% of the E0 EWSR was located in the upper components in 92Zr and 92Mo respectively. The energies of the ISGMR for 92Zr and 92Mo are higher than for 90Zr, suggesting a significant nuclear structure contribution to the energy of the ISGMR in these nuclei. This has a large effect on the compression modulus of the nucleus. |
| Month_val: | 12 |
| Sig contrib: | D. H. Youngblood, Y.-W. Lui |
| Authors: | |
| Added by: | [DGM] |
| Total mark: | 0 |
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