Isoscalar giant dipole resonance in 208Pb via inelastic α scattering at 400 MeV and nuclear incompressibility

M. Uchida, H. Sakaguchi, M. Itoh, M. Yosoi, T. Kawabata, H. Takeda, Y. Yasuda, T. Murakami, T. Ishikawa, T. Taki, N. Tsukahara, S. Terashima, U. Garg, M. Hedden, B. Kharraja, M. Koss, B. K. Nayak, S. Zhu, M. Fujiwara, H. FujimuraK. Hara, E. Obayashi, H. P. Yoshida, H. Akimune, M. N. Harakeh, M. Volkerts

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Abstract

The isoscalar giant dipole resonance (ISGDR) in 208Pb has been investigated with inelastic α-scattering of 400 MeV at extremely forward angles, including 0°. Energy spectra, virtually free from instrumental background, have been obtained and the ISGDR strength distribution has been extracted using a multipole-decomposition analysis (MDA). A difference-of-spectra approach yields the same ISGDR centroid energy as with MDA. These results lead to a value for nuclear incompressibility that is consistent for both the isoscalar dipole and monopole modes.

Original languageEnglish
Pages (from-to)12-19
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume557
Issue number1-2
DOIs
Publication statusPublished - 2003 Mar 27

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Uchida, M., Sakaguchi, H., Itoh, M., Yosoi, M., Kawabata, T., Takeda, H., Yasuda, Y., Murakami, T., Ishikawa, T., Taki, T., Tsukahara, N., Terashima, S., Garg, U., Hedden, M., Kharraja, B., Koss, M., Nayak, B. K., Zhu, S., Fujiwara, M., ... Volkerts, M. (2003). Isoscalar giant dipole resonance in 208Pb via inelastic α scattering at 400 MeV and nuclear incompressibility. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 557(1-2), 12-19. https://doi.org/10.1016/S0370-2693(03)00137-0