Pygmy dipole resonance in 208Pb

I. Poltoratska; P. Von Neumann-Cosel; A. Tamii; T. Adachi; C. A. Bertulani; J. Carter; M. Dozono; H. Fujita; K. Fujita; Y. Fujita; K. Hatanaka; M. Itoh; T. Kawabata; Y. Kalmykov; A. M. Krumbholz; E. Litvinova; H. Matsubara; K. Nakanishi; R. Neveling; H. Okamura; H. J. Ong; B. Azel-Tashenov; V. Yu Ponomarev; A. Richter; B. Rubio; H. Sakaguchi; Y. Sakemi; Y. Sasamoto; Y. Shimbara; Y. Shimizu; F. D. Smit; T. Suzuki; Y. Tameshige; J. Wambach; M. Yosoi; J. Zenihiro

doi:10.1103/PhysRevC.85.041304

Pygmy dipole resonance in 208Pb

I. Poltoratska, P. Von Neumann-Cosel, A. Tamii, T. Adachi, C. A. Bertulani, J. Carter, M. Dozono, H. Fujita, K. Fujita, Y. Fujita, K. Hatanaka, M. Itoh, T. Kawabata, Y. Kalmykov, A. M. Krumbholz, E. Litvinova, H. Matsubara, K. Nakanishi, R. Neveling, H. OkamuraH. J. Ong, B. Azel-Tashenov, V. Yu Ponomarev, A. Richter, B. Rubio, H. Sakaguchi, Y. Sakemi, Y. Sasamoto, Y. Shimbara, Y. Shimizu, F. D. Smit, T. Suzuki, Y. Tameshige, J. Wambach, M. Yosoi, J. Zenihiro

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Abstract

Scattering of protons of several hundred MeV is a promising new spectroscopic tool for the study of electric dipole strength in nuclei. A case study of 208Pb shows that, at very forward angles, Jπ=1^- states are strongly populated via Coulomb excitation. A separation from nuclear excitation of other modes is achieved by a multipole decomposition analysis of the experimental cross sections based on theoretical angular distributions calculated within the quasiparticle-phonon model. The B(E1) transition strength distribution is extracted for excitation energies up to 9 MeV; that is, in the region of the so-called pygmy dipole resonance (PDR). The Coulomb-nuclear interference shows sensitivity to the underlying structure of the E1 transitions, which allows for the first time an experimental extraction of the electromagnetic transition strength and the energy centroid of the PDR.

Original language	English
Article number	041304
Journal	Physical Review C - Nuclear Physics
Volume	85
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.85.041304
Publication status	Published - 20-04-2012
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1103/PhysRevC.85.041304

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Poltoratska, I., Von Neumann-Cosel, P., Tamii, A., Adachi, T., Bertulani, C. A., Carter, J., Dozono, M., Fujita, H., Fujita, K., Fujita, Y., Hatanaka, K., Itoh, M., Kawabata, T., Kalmykov, Y., Krumbholz, A. M., Litvinova, E., Matsubara, H., Nakanishi, K., Neveling, R., ... Zenihiro, J. (2012). Pygmy dipole resonance in 208Pb. Physical Review C - Nuclear Physics, 85(4), Article 041304. https://doi.org/10.1103/PhysRevC.85.041304

@article{1394b8879ca5469aa50312f3bd1bb1dd,

title = "Pygmy dipole resonance in 208Pb",

abstract = "Scattering of protons of several hundred MeV is a promising new spectroscopic tool for the study of electric dipole strength in nuclei. A case study of 208Pb shows that, at very forward angles, Jπ=1- states are strongly populated via Coulomb excitation. A separation from nuclear excitation of other modes is achieved by a multipole decomposition analysis of the experimental cross sections based on theoretical angular distributions calculated within the quasiparticle-phonon model. The B(E1) transition strength distribution is extracted for excitation energies up to 9 MeV; that is, in the region of the so-called pygmy dipole resonance (PDR). The Coulomb-nuclear interference shows sensitivity to the underlying structure of the E1 transitions, which allows for the first time an experimental extraction of the electromagnetic transition strength and the energy centroid of the PDR.",

author = "I. Poltoratska and {Von Neumann-Cosel}, P. and A. Tamii and T. Adachi and Bertulani, {C. A.} and J. Carter and M. Dozono and H. Fujita and K. Fujita and Y. Fujita and K. Hatanaka and M. Itoh and T. Kawabata and Y. Kalmykov and Krumbholz, {A. M.} and E. Litvinova and H. Matsubara and K. Nakanishi and R. Neveling and H. Okamura and Ong, {H. J.} and B. Azel-Tashenov and Ponomarev, {V. Yu} and A. Richter and B. Rubio and H. Sakaguchi and Y. Sakemi and Y. Sasamoto and Y. Shimbara and Y. Shimizu and Smit, {F. D.} and T. Suzuki and Y. Tameshige and J. Wambach and M. Yosoi and J. Zenihiro",

year = "2012",

month = apr,

day = "20",

doi = "10.1103/PhysRevC.85.041304",

language = "English",

volume = "85",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

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Poltoratska, I, Von Neumann-Cosel, P, Tamii, A, Adachi, T, Bertulani, CA, Carter, J, Dozono, M, Fujita, H, Fujita, K, Fujita, Y, Hatanaka, K, Itoh, M, Kawabata, T, Kalmykov, Y, Krumbholz, AM, Litvinova, E, Matsubara, H, Nakanishi, K, Neveling, R, Okamura, H, Ong, HJ, Azel-Tashenov, B, Ponomarev, VY, Richter, A, Rubio, B, Sakaguchi, H, Sakemi, Y, Sasamoto, Y, Shimbara, Y, Shimizu, Y, Smit, FD, Suzuki, T, Tameshige, Y, Wambach, J, Yosoi, M & Zenihiro, J 2012, 'Pygmy dipole resonance in 208Pb', Physical Review C - Nuclear Physics, vol. 85, no. 4, 041304. https://doi.org/10.1103/PhysRevC.85.041304

TY - JOUR

T1 - Pygmy dipole resonance in 208Pb

AU - Poltoratska, I.

AU - Von Neumann-Cosel, P.

AU - Tamii, A.

AU - Adachi, T.

AU - Bertulani, C. A.

AU - Carter, J.

AU - Dozono, M.

AU - Fujita, H.

AU - Fujita, K.

AU - Fujita, Y.

AU - Hatanaka, K.

AU - Itoh, M.

AU - Kawabata, T.

AU - Kalmykov, Y.

AU - Krumbholz, A. M.

AU - Litvinova, E.

AU - Matsubara, H.

AU - Nakanishi, K.

AU - Neveling, R.

AU - Okamura, H.

AU - Ong, H. J.

AU - Azel-Tashenov, B.

AU - Ponomarev, V. Yu

AU - Richter, A.

AU - Rubio, B.

AU - Sakaguchi, H.

AU - Sakemi, Y.

AU - Sasamoto, Y.

AU - Shimbara, Y.

AU - Shimizu, Y.

AU - Smit, F. D.

AU - Suzuki, T.

AU - Tameshige, Y.

AU - Wambach, J.

AU - Yosoi, M.

AU - Zenihiro, J.

PY - 2012/4/20

Y1 - 2012/4/20

N2 - Scattering of protons of several hundred MeV is a promising new spectroscopic tool for the study of electric dipole strength in nuclei. A case study of 208Pb shows that, at very forward angles, Jπ=1- states are strongly populated via Coulomb excitation. A separation from nuclear excitation of other modes is achieved by a multipole decomposition analysis of the experimental cross sections based on theoretical angular distributions calculated within the quasiparticle-phonon model. The B(E1) transition strength distribution is extracted for excitation energies up to 9 MeV; that is, in the region of the so-called pygmy dipole resonance (PDR). The Coulomb-nuclear interference shows sensitivity to the underlying structure of the E1 transitions, which allows for the first time an experimental extraction of the electromagnetic transition strength and the energy centroid of the PDR.

AB - Scattering of protons of several hundred MeV is a promising new spectroscopic tool for the study of electric dipole strength in nuclei. A case study of 208Pb shows that, at very forward angles, Jπ=1- states are strongly populated via Coulomb excitation. A separation from nuclear excitation of other modes is achieved by a multipole decomposition analysis of the experimental cross sections based on theoretical angular distributions calculated within the quasiparticle-phonon model. The B(E1) transition strength distribution is extracted for excitation energies up to 9 MeV; that is, in the region of the so-called pygmy dipole resonance (PDR). The Coulomb-nuclear interference shows sensitivity to the underlying structure of the E1 transitions, which allows for the first time an experimental extraction of the electromagnetic transition strength and the energy centroid of the PDR.

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U2 - 10.1103/PhysRevC.85.041304

DO - 10.1103/PhysRevC.85.041304

M3 - Article

AN - SCOPUS:84860689321

SN - 0556-2813

VL - 85

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 4

M1 - 041304

ER -

Pygmy dipole resonance in 208Pb

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