Extraction of anti-analog giant dipole resonance and neutron skin thickness for 208Pb

Jumpei Yasuda, Tomotsugu Wakasa, Midori Okamoto, Masanori Dozono, Kichiji Hatanaka, Munetake Ichimura, Sho Kuroita, Yukie Maeda, Tetsuo Noro, Yasuhiro Sakemi, Masaki Sasano, Kentaro Yako

Research output: Contribution to journalArticle

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Abstract

The anti-analog giant dipole resonance (AGDR) was separated from other excitations such as the spin-dipole resonance by multipole decomposition analysis of the 208Pb(→p,→n) reaction at a bombarding energy of Tp = 296MeV. The polarization transfer observables were found to be useful for carrying out this separation. The energy difference between the AGDR and the isobaric analog state (IAS)was determined to beΔE = 8.69 ± 0.36MeV,where the uncertainty includes both statistical and systematic contributions. Theoretical calculations using the proton-neutron relativistic quasi-particle random phase approximation predicted a strong correlation between ΔE and the neutron skin thickness ΔRpn. Under the assumption that the correlation predicted in this model is correct, the present ΔE value corresponds to a neutron skin thickness of ΔRpn = 0.216 ± 0.046 ± 0.015 fm, where the first and second uncertainties are the experimental and theoretical uncertainties, respectively.

Original languageEnglish
Article number063D02
JournalProgress of Theoretical and Experimental Physics
Volume2013
Issue number6
DOIs
Publication statusPublished - Jun 1 2013

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analogs
dipoles
neutrons
bees
elementary excitations
multipoles
decomposition
protons
energy
polarization
approximation
excitation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Extraction of anti-analog giant dipole resonance and neutron skin thickness for 208Pb. / Yasuda, Jumpei; Wakasa, Tomotsugu; Okamoto, Midori; Dozono, Masanori; Hatanaka, Kichiji; Ichimura, Munetake; Kuroita, Sho; Maeda, Yukie; Noro, Tetsuo; Sakemi, Yasuhiro; Sasano, Masaki; Yako, Kentaro.

In: Progress of Theoretical and Experimental Physics, Vol. 2013, No. 6, 063D02, 01.06.2013.

Research output: Contribution to journalArticle

Yasuda, J, Wakasa, T, Okamoto, M, Dozono, M, Hatanaka, K, Ichimura, M, Kuroita, S, Maeda, Y, Noro, T, Sakemi, Y, Sasano, M & Yako, K 2013, 'Extraction of anti-analog giant dipole resonance and neutron skin thickness for 208Pb', Progress of Theoretical and Experimental Physics, vol. 2013, no. 6, 063D02. https://doi.org/10.1093/ptep/ptt038
Yasuda, Jumpei ; Wakasa, Tomotsugu ; Okamoto, Midori ; Dozono, Masanori ; Hatanaka, Kichiji ; Ichimura, Munetake ; Kuroita, Sho ; Maeda, Yukie ; Noro, Tetsuo ; Sakemi, Yasuhiro ; Sasano, Masaki ; Yako, Kentaro. / Extraction of anti-analog giant dipole resonance and neutron skin thickness for 208Pb. In: Progress of Theoretical and Experimental Physics. 2013 ; Vol. 2013, No. 6.
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AU - Ichimura, Munetake

AU - Kuroita, Sho

AU - Maeda, Yukie

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