Isoscalar Giant Dipole Resonance and Nuclear Incompressibility

Uchida, M.; Sakaguchi, H.; Itoh, Makoto; Yosoi, M.; Kawabata, Tomoya; Takeda, H.; Yasuda, Yusuke; Murakami, Takeshi; Ishikawa, T.; Taki, Toshihiko; Tsukahara, N.; Terashima, S.; Garg, U.; Hedden, M.; Kharraja, B.; Koss, Michael; Nayak, B. K.; Zhu, S.; Fujiwara, M̄.; Fujimura, Hisashi; Hara, K.; Obayashi, E.; Yoshida, H. P.; Akimune, H.; Harakeh, Mohsen; Volkerts, M.

doi:10.1142/9789812704870_0005

Cited by 2 publications

(4 citation statements)

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“…The accuracy of future GMR measurement in 204,206 Pb will be crucial. Moreover, it should be mentioned that a somewhat lower value for the GMR centroid of 208 Pb has been found in the RCNP experiment (13.5 ± 0.2 [24]), compared to the Texas A&M one [22]: there is a current debate about the reason such variations. An accurate experiment on Pb isotopes, including 208 Pb should also help to solve this issue.…”

Section: Fig 2: Excitations Energies Of the Gmr Inmentioning

confidence: 89%

Giant monopole resonance in Pb isotopes

Khan

2009

Phys. Rev. C

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The extraction of the nuclear incompressibility from the isoscalar giant monopole resonance (GMR) measurements is analysed. Both pairing and mutually enhanced magicity (MEM) effects play a role in the shift of the GMR energy between the doubly closed shell 208 Pb nucleus and other Pb isotopes. Pairing effects are microscopically predicted whereas the MEM effect is phenomenologically evaluated. Accurate measurements of the GMR in open-shell Pb isotopes are called for.

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Section: Fig 2: Excitations Energies Of the Gmr Inmentioning

confidence: 89%

Giant monopole resonance in Pb isotopes

Khan

2009

Phys. Rev. C

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“…The proton-density distributions ρ p (r) for the ground state of 12 C and 13 C were derived from the electron-scattering data [42]. The neutron-density distribution ρ n (r) of 12 C was assumed as the same shape as the proton-density distribution of 12 C. The neutron-density distribution of 13 C was assumed to be ρ n (r) = ρ p (r ′ ) with r ′ = (6/7) 1/3 r. Many previous analyses of the α inelastic scattering [12,19,[28][29][30][31][32][33][34][35][36][37] employed the density-dependent effective αN interaction proposed by Satchler and Khoa [43]. However, the recent systematic analysis of the α inelastic scattering demonstrated that the cross sections for the IS0 transitions tended to be overestimated when the density-dependent interaction was used [26].…”

Section: Dwba Calculationmentioning

confidence: 99%

“…The α inelastic scattering is a powerful tool to extract isoscalar transition strengths with various transferred angular momenta (∆L) [12,[26][27][28][29][30][31][32][33][34][35][36][37][38]. Since the spin and isospin of α particles are zero, the natural-parity isoscalar transitions are selectively induced in the α inelastic scattering if the Coulomb interaction is neglected.…”

Section: Introductionmentioning

confidence: 99%

“…Since the α inelastic scattering is a surface reaction, the angular distribution of the cross section is not sensitive to the details of the internal wave function and is characterized by the transferred angular momentum. Therefore, the multipole decomposition analysis (MDA) works well to extract the different ∆L components from the measured cross sections [29][30][31][32][33][34][35][36][37]. Because the angular distributions of the cross sections are quite different near θ c.m.…”

Section: Introductionmentioning

confidence: 99%

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Search for $α$ condensed states in $^{13}$C using $α$ inelastic scattering

Inaba,

Sasamoto,

Kawabata

et al. 2021

Preprint

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We searched for the α condensed state in 13 C by measuring the α inelastic scattering at E α = 388 MeV at forward angles including 0 degrees. We performed the distortedwave Born-approximation calculation with the single-folding potential and the multipole decomposition analysis to determine the isoscalar transition strengths in 13 C. We found a bump structure around E x = 12.5 MeV due to the isoscalar monopole (IS0) transition. A peak-fit analysis suggested that this bump consisted of several 1/2 − states. We propose that this bump is due to the mirror state of the 13.5 MeV-state in 13 N, which dominantly decays to the α condensed state in 12 C. It was speculated that the 1/2 − states around E x = 12.5 MeV were candidates for the α condensed state, but the 3α + n orthogonality condition model suggests that the α condensed state is unlikely to emerge as the negative parity states. We also found two 1/2 + or 3/2 + states at E x = 14.5 and 16.1 MeV excited with the isoscalar dipole (IS1) strengths. We suggest that the 16.1-MeV state is a possible candidate for the α condensed state predicted by the cluster-model calculations

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Isoscalar Giant Dipole Resonance and Nuclear Incompressibility

Cited by 2 publications

References 0 publications

Giant monopole resonance in Pb isotopes

Giant monopole resonance in Pb isotopes

Search for $α$ condensed states in $^{13}$C using $α$ inelastic scattering

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