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Pygmy Dipole Streng...
Pygmy Dipole Strength in Exotic Nuclei and the Equation of State
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Klimkiewicz, A. (author)
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Paar, N. (author)
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Adrich, P. (author)
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show more...
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Fallot, M. (author)
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Le Bleis, T. (author)
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Rossi, D. (author)
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Boretzky, K. (author)
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Aumann, T. (author)
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Alvarez-Pol, H. (author)
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Aksouh, F. (author)
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Benlliure, J. (author)
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Berg, T. (author)
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Boehmer, M. (author)
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Casarejos, E. (author)
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Chartier, M. (author)
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Chatillon, A. (author)
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Cortina-Gil, D. (author)
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Pramanik, U. D. (author)
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Elze, T. W. (author)
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Emling, H. (author)
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Ershova, O. (author)
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Fernando-Dominguez, B. (author)
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Geissel, H. (author)
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Gorska, A. (author)
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Heil, M. (author)
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Hellstrom, M. (author)
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- Johansson, Håkan T, 1977 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Jones, K. L. (author)
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Junghans, A. (author)
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Kiselev, O. (author)
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Kratz, J. V. (author)
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Kulessa, R. (author)
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Kurz, N. (author)
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Labiche, M. (author)
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Lemmon, R. (author)
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Litvinov, Y. (author)
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Mahata, K. (author)
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Maierbeck, P. (author)
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- Nilsson, Thomas, 1965 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Nociforo, C. (author)
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Palit, R. (author)
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Paschalis, S. (author)
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Plag, R. (author)
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Reifarth, R. (author)
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Simon, H. (author)
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Summerer, K. (author)
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Surowka, G. (author)
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Vretenar, D. (author)
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Wagner, A. (author)
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Walus, W. (author)
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Weick, H. (author)
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Winkler, M. (author)
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(creator_code:org_t)
- 2009
- 2009
- English.
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In: AIP Conference Proceedings. - 1551-7616 .- 0094-243X. ; 1165, s. 181-184 461
- Related links:
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https://research.cha...
Abstract
Subject headings
Close
- A concentration of dipole strength at energies below the giant dipole resonance was observed in neutron-rich nuclei around Sn-132 in an experiment using the FRS-LAND setup. This so-called "pygmy" dipole strength can be related to the parameters of the symmetry energy and to the neutron skin thickness on the grounds of a relativistic quasiparticle random-phase approximation. Using this ansatz and the experimental findings for Sn-130 and 132 Sri, we derive a value of the symmetry energy pressure of (p) over bar (0) = 2.2 +/- 0.5 MeV/fm(3). Neutron skin thicknesses of R-n-R-p = 0.23 +/- 0.03 fm and 0.24 +/- 0.03 fm for Sn-130 and Sn-132, respectively, have been determined. Preliminary results on Ni-68 from a similar experiment using an improved setup indicate an enhanced cross section at low energies, while the results for Ni-58 are in accordance with results from photoabsorption measurements.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Keyword
- n=82 nuclei
- electromagnetic excitation
- giant dipole resonance
- sn-132
- ni-68
- neutron skin
- ni-58
- modes
- symmetry energy
- energy
- pygmy dipole resonance
- sn-130
Publication and Content Type
- kon (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Klimkiewicz, A.
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Paar, N.
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Adrich, P.
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Fallot, M.
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Le Bleis, T.
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Rossi, D.
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show more...
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Boretzky, K.
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Aumann, T.
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Alvarez-Pol, H.
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Aksouh, F.
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Benlliure, J.
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Berg, T.
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Boehmer, M.
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Casarejos, E.
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Chartier, M.
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Chatillon, A.
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Cortina-Gil, D.
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Pramanik, U. D.
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Elze, T. W.
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Emling, H.
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Ershova, O.
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Fernando-Domingu ...
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Geissel, H.
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Gorska, A.
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Heil, M.
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Hellstrom, M.
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Johansson, Håkan ...
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Jones, K. L.
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Junghans, A.
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Kiselev, O.
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Kratz, J. V.
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Kulessa, R.
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Kurz, N.
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Labiche, M.
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Lemmon, R.
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Litvinov, Y.
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Mahata, K.
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Maierbeck, P.
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Nilsson, Thomas, ...
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Nociforo, C.
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Palit, R.
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Paschalis, S.
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Plag, R.
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Reifarth, R.
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Simon, H.
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Summerer, K.
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Surowka, G.
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Vretenar, D.
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Wagner, A.
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Walus, W.
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Weick, H.
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Winkler, M.
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
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AIP Conference P ...
- By the university
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Chalmers University of Technology