Pairing-quadrupole interplay in the neutron-deficient tin nuclei: first lifetime measurements of low-lying states in $^{106,108}$Sn

The lifetimes of the low-lying excited states 2+ and 4+ have been directly measured in the neutron-deficient 106,108 Sn isotopes. The nuclei were populated via a deep-inelastic reaction and the lifetime measurement was performed employing a differential plunger device. The emitted γ rays were detect...

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Autores principales: Siciliano, M., Valiente-Dobón, J.J., Goasduff, A., Nowacki, F., Zuker, A.P., Bazzacco, D., Lopez-Martens, A., Clément, E., Benzoni, G., Braunroth, T., Cieplicka-Oryńczak, N., Crespi, F.C.L., de France, G., Doncel, M., Ertürk, S., Fransen, C., Gadea, A., Georgiev, G., Goldkuhle, A., Jakobsson, U., Jaworski, G., John, P.R., Kuti, I., Lemasson, A., Li, H., Marchi, T., Mengoni, D., Michelagnoli, C., Mijatović, T., Müller-Gatermann, C., Napoli, D.R., Nyberg, J., Palacz, M., Pérez-Vidal, R.M., Sayği, B., Sohler, D., Szilner, S., Testov, D., Barrientos, D., Birkenbach, B., Boston, H.C., Boston, A.J., Cederwall, B., Cullen, D.M., Collado, J., Désesquelles, P., Dudouet, J., Domingo-Pardo, C., Eberth, J., Egea-Canet, F.J., González, V., Judson, D.S., Harkness-Brennan, L.J., Hess, H., Jungclaus, A., Korten, W., Labiche, M., Lefevre, A., Leoni, S., Maj, A., Menegazzo, R., Million, B., Pullia, A., Recchia, F., Reiter, P., Salsac, M.D., Sanchis, E., Stezowski, O., Theisen, Ch., Zielińska, M.
Lenguaje:eng
Publicado: 2019
Materias:
nucl-ex
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2020.135474
http://cds.cern.ch/record/2676694
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author Siciliano, M.
Valiente-Dobón, J.J.
Goasduff, A.
Nowacki, F.
Zuker, A.P.
Bazzacco, D.
Lopez-Martens, A.
Clément, E.
Benzoni, G.
Braunroth, T.
Cieplicka-Oryńczak, N.
Crespi, F.C.L.
de France, G.
Doncel, M.
Ertürk, S.
Fransen, C.
Gadea, A.
Georgiev, G.
Goldkuhle, A.
Jakobsson, U.
Jaworski, G.
John, P.R.
Kuti, I.
Lemasson, A.
Li, H.
Marchi, T.
Mengoni, D.
Michelagnoli, C.
Mijatović, T.
Müller-Gatermann, C.
Napoli, D.R.
Nyberg, J.
Palacz, M.
Pérez-Vidal, R.M.
Sayği, B.
Sohler, D.
Szilner, S.
Testov, D.
Barrientos, D.
Birkenbach, B.
Boston, H.C.
Boston, A.J.
Cederwall, B.
Cullen, D.M.
Collado, J.
Désesquelles, P.
Dudouet, J.
Domingo-Pardo, C.
Eberth, J.
Egea-Canet, F.J.
González, V.
Judson, D.S.
Harkness-Brennan, L.J.
Hess, H.
Jungclaus, A.
Korten, W.
Labiche, M.
Lefevre, A.
Leoni, S.
Maj, A.
Menegazzo, R.
Million, B.
Pullia, A.
Recchia, F.
Reiter, P.
Salsac, M.D.
Sanchis, E.
Stezowski, O.
Theisen, Ch.
Zielińska, M.
author_facet Siciliano, M.
Valiente-Dobón, J.J.
Goasduff, A.
Nowacki, F.
Zuker, A.P.
Bazzacco, D.
Lopez-Martens, A.
Clément, E.
Benzoni, G.
Braunroth, T.
Cieplicka-Oryńczak, N.
Crespi, F.C.L.
de France, G.
Doncel, M.
Ertürk, S.
Fransen, C.
Gadea, A.
Georgiev, G.
Goldkuhle, A.
Jakobsson, U.
Jaworski, G.
John, P.R.
Kuti, I.
Lemasson, A.
Li, H.
Marchi, T.
Mengoni, D.
Michelagnoli, C.
Mijatović, T.
Müller-Gatermann, C.
Napoli, D.R.
Nyberg, J.
Palacz, M.
Pérez-Vidal, R.M.
Sayği, B.
Sohler, D.
Szilner, S.
Testov, D.
Barrientos, D.
Birkenbach, B.
Boston, H.C.
Boston, A.J.
Cederwall, B.
Cullen, D.M.
Collado, J.
Désesquelles, P.
Dudouet, J.
Domingo-Pardo, C.
Eberth, J.
Egea-Canet, F.J.
González, V.
Judson, D.S.
Harkness-Brennan, L.J.
Hess, H.
Jungclaus, A.
Korten, W.
Labiche, M.
Lefevre, A.
Leoni, S.
Maj, A.
Menegazzo, R.
Million, B.
Pullia, A.
Recchia, F.
Reiter, P.
Salsac, M.D.
Sanchis, E.
Stezowski, O.
Theisen, Ch.
Zielińska, M.
author_sort Siciliano, M.
collection CERN
description The lifetimes of the low-lying excited states 2+ and 4+ have been directly measured in the neutron-deficient 106,108 Sn isotopes. The nuclei were populated via a deep-inelastic reaction and the lifetime measurement was performed employing a differential plunger device. The emitted γ rays were detected by the AGATA array, while the reaction products were uniquely identified by the VAMOS++ magnetic spectrometer. Large-Scale Shell-Model calculations with realistic forces indicate that, independently of the pairing content of the interaction, the quadrupole force is dominant in the B(E2;21+→0g.s.+) values and it describes well the experimental pattern for 104−114 Sn; the B(E2;41+→21+) values, measured here for the first time, depend critically on a delicate pairing-quadrupole balance, disclosed by the very precise results in 108 Sn.
id cern-2676694
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
record_format invenio
spelling cern-26766942021-12-01T03:19:36Zdoi:10.1016/j.physletb.2020.135474http://cds.cern.ch/record/2676694engSiciliano, M.Valiente-Dobón, J.J.Goasduff, A.Nowacki, F.Zuker, A.P.Bazzacco, D.Lopez-Martens, A.Clément, E.Benzoni, G.Braunroth, T.Cieplicka-Oryńczak, N.Crespi, F.C.L.de France, G.Doncel, M.Ertürk, S.Fransen, C.Gadea, A.Georgiev, G.Goldkuhle, A.Jakobsson, U.Jaworski, G.John, P.R.Kuti, I.Lemasson, A.Li, H.Marchi, T.Mengoni, D.Michelagnoli, C.Mijatović, T.Müller-Gatermann, C.Napoli, D.R.Nyberg, J.Palacz, M.Pérez-Vidal, R.M.Sayği, B.Sohler, D.Szilner, S.Testov, D.Barrientos, D.Birkenbach, B.Boston, H.C.Boston, A.J.Cederwall, B.Cullen, D.M.Collado, J.Désesquelles, P.Dudouet, J.Domingo-Pardo, C.Eberth, J.Egea-Canet, F.J.González, V.Judson, D.S.Harkness-Brennan, L.J.Hess, H.Jungclaus, A.Korten, W.Labiche, M.Lefevre, A.Leoni, S.Maj, A.Menegazzo, R.Million, B.Pullia, A.Recchia, F.Reiter, P.Salsac, M.D.Sanchis, E.Stezowski, O.Theisen, Ch.Zielińska, M.Pairing-quadrupole interplay in the neutron-deficient tin nuclei: first lifetime measurements of low-lying states in $^{106,108}$Snnucl-exNuclear Physics - ExperimentThe lifetimes of the low-lying excited states 2+ and 4+ have been directly measured in the neutron-deficient 106,108 Sn isotopes. The nuclei were populated via a deep-inelastic reaction and the lifetime measurement was performed employing a differential plunger device. The emitted γ rays were detected by the AGATA array, while the reaction products were uniquely identified by the VAMOS++ magnetic spectrometer. Large-Scale Shell-Model calculations with realistic forces indicate that, independently of the pairing content of the interaction, the quadrupole force is dominant in the B(E2;21+→0g.s.+) values and it describes well the experimental pattern for 104−114 Sn; the B(E2;41+→21+) values, measured here for the first time, depend critically on a delicate pairing-quadrupole balance, disclosed by the very precise results in 108 Sn.The lifetimes of the low-lying excited states $2^+$ and $4^+$ have been directly measured in the neutron-deficient $^{106,108}$Sn isotopes. The nuclei were populated via a deep-inelastic reaction and the lifetime measurement was performed employing a differential plunger device. The emitted $\gamma$ rays were detected by the AGATA array, while the reaction products were uniquely identified by the VAMOS++ magnetic spectrometer. Large-Scale Shell-Model calculations with realistic forces indicate that, independently of the pairing content of the interaction, the quadrupole force is dominant in the $B(E2; 2_1^+ \to 0_{g.s.}^+)$ values and it describes well the experimental pattern for $^{104-114}$Sn; the $B(E2; 4_1^+ \to 2_1^+)$ values, measured here for the first time, depend critically on a delicate pairing-quadrupole balance, disclosed by the very precise results in $^{108}$Sn. This result provides insight in the hitherto unexplained $B(E2; 4_1^+ \to 2_1^+)/B(E2; 2_1^+ \to 0_{g.s.}^+) < 1$ anomaly.arXiv:1905.10313oai:cds.cern.ch:26766942019-05-24
spellingShingle nucl-ex
Nuclear Physics - Experiment
Siciliano, M.
Valiente-Dobón, J.J.
Goasduff, A.
Nowacki, F.
Zuker, A.P.
Bazzacco, D.
Lopez-Martens, A.
Clément, E.
Benzoni, G.
Braunroth, T.
Cieplicka-Oryńczak, N.
Crespi, F.C.L.
de France, G.
Doncel, M.
Ertürk, S.
Fransen, C.
Gadea, A.
Georgiev, G.
Goldkuhle, A.
Jakobsson, U.
Jaworski, G.
John, P.R.
Kuti, I.
Lemasson, A.
Li, H.
Marchi, T.
Mengoni, D.
Michelagnoli, C.
Mijatović, T.
Müller-Gatermann, C.
Napoli, D.R.
Nyberg, J.
Palacz, M.
Pérez-Vidal, R.M.
Sayği, B.
Sohler, D.
Szilner, S.
Testov, D.
Barrientos, D.
Birkenbach, B.
Boston, H.C.
Boston, A.J.
Cederwall, B.
Cullen, D.M.
Collado, J.
Désesquelles, P.
Dudouet, J.
Domingo-Pardo, C.
Eberth, J.
Egea-Canet, F.J.
González, V.
Judson, D.S.
Harkness-Brennan, L.J.
Hess, H.
Jungclaus, A.
Korten, W.
Labiche, M.
Lefevre, A.
Leoni, S.
Maj, A.
Menegazzo, R.
Million, B.
Pullia, A.
Recchia, F.
Reiter, P.
Salsac, M.D.
Sanchis, E.
Stezowski, O.
Theisen, Ch.
Zielińska, M.
Pairing-quadrupole interplay in the neutron-deficient tin nuclei: first lifetime measurements of low-lying states in $^{106,108}$Sn
title Pairing-quadrupole interplay in the neutron-deficient tin nuclei: first lifetime measurements of low-lying states in $^{106,108}$Sn
title_full Pairing-quadrupole interplay in the neutron-deficient tin nuclei: first lifetime measurements of low-lying states in $^{106,108}$Sn
title_fullStr Pairing-quadrupole interplay in the neutron-deficient tin nuclei: first lifetime measurements of low-lying states in $^{106,108}$Sn
title_full_unstemmed Pairing-quadrupole interplay in the neutron-deficient tin nuclei: first lifetime measurements of low-lying states in $^{106,108}$Sn
title_short Pairing-quadrupole interplay in the neutron-deficient tin nuclei: first lifetime measurements of low-lying states in $^{106,108}$Sn
title_sort pairing-quadrupole interplay in the neutron-deficient tin nuclei: first lifetime measurements of low-lying states in $^{106,108}$sn
topic nucl-ex
Nuclear Physics - Experiment
url https://dx.doi.org/10.1016/j.physletb.2020.135474
http://cds.cern.ch/record/2676694
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