Isoscalar Giant Resonances in the even-A Pd Isotopes
Abstract
Studies of the isoscalar giant monopole resonance (ISGMR) across the chart of nuclides provide insight into the incompressibility of nuclear matter near saturation density, K(infinity). Such studies had revealed a discrepancy between theoretical approaches: quasiparticle random phase approximation (QRPA) derived from Skyrme interactions reproduce the strength distributions of the ISGMR in the doubly-closed-shell nuclei 90Zr and 208Pb, but their descriptions of strength distributions in open-shell medium-heavy nuclei suggest higher centroid energies should be experimentally observed. The latter nuclei required a smaller K(infinity) and were thus deemed softer. The present work serves to add to this softness discourse by extracting ISGMR strength distributions for 104,106,108,110Pd via 386-MeV inelastic alpha-scattering. The extracted giant resonance strength distributions are consistent with expectations in this isotopic range. Additional Quasiparticle Vibration Coupling (QPVC) effects are included with the QRPA approach and compared to aforementioned ISGMR strength distributions.
Versions
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BibTeX
@misc{arroyo2026isoscalar,
title = {{Isoscalar Giant Resonances in the even-A Pd Isotopes}},
author = {J. Arroyo and U. Garg and T. Furuno and M. Itoh and H. Shimojo and S. Adachi and H. Akimune and J. Cai and G. Colo and M. Dozono and F. Endo and M. Fujiwara and F. Furukawa and M. N. Harakeh and Y. Hijikata and Y. Honda and G. Hosoya and N. Itakura and K. Kawata and T. Kawabata and N. Kobayashi and Z. Z. Li and Y. Lin and Y. Matsuda and T. Morishita and K. Nakano and Y. F. Niu and T. Okamura and S. Ota and F. Saito and R. Saito and S. Sakajo and K. Sakanashi and H. Shibakita and R. Tsuji and G. Umemoto and A. Yamasaki and S. Yamazaki and T. Yano and K. Yasumura and S. Yonekura and J. Zenihiro},
howpublished = {arXiv},
year = {2026},
month = aug,
doi = {10.48550/arxiv.2608.22109},
eprint = {2608.22109},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.22109},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - UNPB
TI - Isoscalar Giant Resonances in the even-A Pd Isotopes
AU - J. Arroyo
AU - U. Garg
AU - T. Furuno
AU - M. Itoh
AU - H. Shimojo
AU - S. Adachi
AU - H. Akimune
AU - J. Cai
AU - G. Colo
AU - M. Dozono
AU - F. Endo
AU - M. Fujiwara
AU - F. Furukawa
AU - M. N. Harakeh
AU - Y. Hijikata
AU - Y. Honda
AU - G. Hosoya
AU - N. Itakura
AU - K. Kawata
AU - T. Kawabata
AU - N. Kobayashi
AU - Z. Z. Li
AU - Y. Lin
AU - Y. Matsuda
AU - T. Morishita
AU - K. Nakano
AU - Y. F. Niu
AU - T. Okamura
AU - S. Ota
AU - F. Saito
AU - R. Saito
AU - S. Sakajo
AU - K. Sakanashi
AU - H. Shibakita
AU - R. Tsuji
AU - G. Umemoto
AU - A. Yamasaki
AU - S. Yamazaki
AU - T. Yano
AU - K. Yasumura
AU - S. Yonekura
AU - J. Zenihiro
PY - 2026
DA - 2026/08/22
PB - arXiv
DO - 10.48550/arxiv.2608.22109
UR - https://arxiv.org/abs/2608.22109
AB - Studies of the isoscalar giant monopole resonance (ISGMR) across the chart of nuclides provide insight into the incompressibility of nuclear matter near saturation density, K(infinity). Such studies had revealed a discrepancy between theoretical approaches: quasiparticle random phase approximation (QRPA) derived from Skyrme interactions reproduce the strength distributions of the ISGMR in the doubly-closed-shell nuclei 90Zr and 208Pb, but their descriptions of strength distributions in open-shell medium-heavy nuclei suggest higher centroid energies should be experimentally observed. The latter nuclei required a smaller K(infinity) and were thus deemed softer. The present work serves to add to this softness discourse by extracting ISGMR strength distributions for 104,106,108,110Pd via 386-MeV inelastic alpha-scattering. The extracted giant resonance strength distributions are consistent with expectations in this isotopic range. Additional Quasiparticle Vibration Coupling (QPVC) effects are included with the QRPA approach and compared to aforementioned ISGMR strength distributions.
ER -