The (6+) isomer in 102Sn revisited: Neutron and proton effective charges close to the double shell closure

RISING Collaboration; H. Grawe; K. Straub; T. Faestermann; M. Górska; C. Hinke; R. Krücken; F. Nowacki; M. Böhmer; P. Boutachkov; H. Geissel; R. Gernhäuser; A. Gottardo; J. Grȩbosz; N. Kurz; Z. Liu; L. Maier; S. Pietri; Zs Podolyák; K. Steiger; H. Weick; H. J. Wollersheim; P. J. Woods; N. Al-Dahan; N. Alkhomashi; A. Ataç; A. Blazhev; N. Braun; I. Čeliković; T. Davinson; I. Dillmann; C. Domingo-Pardo; P. Doornenbal; G. Farrelly; F. Farinon; G. de France; J. Gerl; N. Goel; T. Habermann; R. Hoischen; R. Janik; M. Karny; A. Kaşkaş; I. Kojouharov; Th Kröll; M. Lewitowicz; Yu A. Litvinov; S. Myalski; F. Nebel; S. Nishimura; C. Rigollet

doi:10.1016/j.physletb.2021.136591

The (6⁺) isomer in ¹⁰²Sn revisited: Neutron and proton effective charges close to the double shell closure

RISING Collaboration, H. Grawe, K. Straub, T. Faestermann^*, M. Górska, C. Hinke, R. Krücken, F. Nowacki, M. Böhmer, P. Boutachkov, H. Geissel, R. Gernhäuser, A. Gottardo, J. Grȩbosz, N. Kurz, Z. Liu, L. Maier, S. Pietri, Zs Podolyák, K. SteigerH. Weick, H. J. Wollersheim, P. J. Woods, N. Al-Dahan, N. Alkhomashi, A. Ataç, A. Blazhev, N. Braun, I. Čeliković, T. Davinson, I. Dillmann, C. Domingo-Pardo, P. Doornenbal, G. Farrelly, F. Farinon, G. de France, J. Gerl, N. Goel, T. Habermann, R. Hoischen, R. Janik, M. Karny, A. Kaşkaş, I. Kojouharov, Th Kröll, M. Lewitowicz, Yu A. Litvinov, S. Myalski, F. Nebel, S. Nishimura, C. Rigollet

^*Corresponding author for this work

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Abstract

In a high-energy fragmentation experiment at GSI an I=π(6⁺) isomer and its γ-decay are identified in ¹⁰²Sn, the two-neutron neighbour of the doubly-magic ¹⁰⁰Sn. Its half-life is measured to be T=1/2367(11) ns. The possible existence of further isomers is discussed in the framework of large-scale shell model (LSSM) calculations including up to five particle-hole excitations of the ¹⁰⁰Sn core. From the precise B(E2; 6⁺→4⁺) strength and the recently remeasured value for B(E2; 8⁺→6⁺) in the two-proton hole neighbour ⁹⁸Cd effective E2 polarization charges for protons and neutrons were inferred including LSSM corrections within the full N=4 0ħω space. The results are discussed in comparison to predicted and empirically determined effective operators.

Original language	English
Article number	136591
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	820
DOIs	https://doi.org/10.1016/j.physletb.2021.136591
Publication status	Published - 10-Sept-2021

Keywords

Effective charges near Sn
Electromagnetic transitions
Shell model

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RISING Collaboration, Grawe, H., Straub, K., Faestermann, T., Górska, M., Hinke, C., Krücken, R., Nowacki, F., Böhmer, M., Boutachkov, P., Geissel, H., Gernhäuser, R., Gottardo, A., Grȩbosz, J., Kurz, N., Liu, Z., Maier, L., Pietri, S., Podolyák, Z., ... Rigollet, C. (2021). The (6⁺) isomer in ¹⁰²Sn revisited: Neutron and proton effective charges close to the double shell closure. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 820, [136591]. https://doi.org/10.1016/j.physletb.2021.136591

@article{d894cfedb5364bada2e6fa1b8c37564d,

title = "The (6+) isomer in 102Sn revisited: Neutron and proton effective charges close to the double shell closure",

abstract = "In a high-energy fragmentation experiment at GSI an I=π(6+) isomer and its γ-decay are identified in 102Sn, the two-neutron neighbour of the doubly-magic 100Sn. Its half-life is measured to be T=1/2367(11) ns. The possible existence of further isomers is discussed in the framework of large-scale shell model (LSSM) calculations including up to five particle-hole excitations of the 100Sn core. From the precise B(E2; 6+→4+) strength and the recently remeasured value for B(E2; 8+→6+) in the two-proton hole neighbour 98Cd effective E2 polarization charges for protons and neutrons were inferred including LSSM corrections within the full N=4 0ħω space. The results are discussed in comparison to predicted and empirically determined effective operators.",

keywords = "Effective charges near Sn, Electromagnetic transitions, Shell model",

author = "{RISING Collaboration} and H. Grawe and K. Straub and T. Faestermann and M. G{\'o}rska and C. Hinke and R. Kr{\"u}cken and F. Nowacki and M. B{\"o}hmer and P. Boutachkov and H. Geissel and R. Gernh{\"a}user and A. Gottardo and J. Grȩbosz and N. Kurz and Z. Liu and L. Maier and S. Pietri and Zs Podoly{\'a}k and K. Steiger and H. Weick and Wollersheim, {H. J.} and Woods, {P. J.} and N. Al-Dahan and N. Alkhomashi and A. Ata{\c c} and A. Blazhev and N. Braun and I. {\v C}elikovi{\'c} and T. Davinson and I. Dillmann and C. Domingo-Pardo and P. Doornenbal and G. Farrelly and F. Farinon and {de France}, G. and J. Gerl and N. Goel and T. Habermann and R. Hoischen and R. Janik and M. Karny and A. Ka{\c s}ka{\c s} and I. Kojouharov and Th Kr{\"o}ll and M. Lewitowicz and Litvinov, {Yu A.} and S. Myalski and F. Nebel and S. Nishimura and C. Rigollet",

note = "Funding Information: We thank the staff of the GSI ion source and accelerator for the preparation of a stable, high-intensity 124 Xe beam, and we thank the fragment separator technicians for setting up the beamline detectors. We are also grateful to the EUROBALL Owners Committee for the use of the Euroball Cluster Detectors. This work was supported by the BMBF under contracts 06MT238 , 06MT9156 , 06KY205I and 06KY9136I ; by the GSI Helmholtzzentrum f{\"u}r Schwerionenforschung GmbH ; by the Deutsche Forschungsgemeinschaft Cluster of Excellence 153 “Origin and Structure of the Universe”; by the EC within the FP6 through I3-EURONS (contract no. RII3-CT-2004-506065 ); by the STFC of the UK; and by the Swedish Research Council . Funding Information: We thank the staff of the GSI ion source and accelerator for the preparation of a stable, high-intensity 124Xe beam, and we thank the fragment separator technicians for setting up the beamline detectors. We are also grateful to the EUROBALL Owners Committee for the use of the Euroball Cluster Detectors. This work was supported by the BMBF under contracts 06MT238, 06MT9156, 06KY205I and 06KY9136I; by the GSI Helmholtzzentrum f?r Schwerionenforschung GmbH; by the Deutsche Forschungsgemeinschaft Cluster of Excellence 153 ?Origin and Structure of the Universe?; by the EC within the FP6 through I3-EURONS (contract no. RII3-CT-2004-506065); by the STFC of the UK; and by the Swedish Research Council. Publisher Copyright: {\textcopyright} 2021 The Author(s)",

year = "2021",

month = sep,

day = "10",

doi = "10.1016/j.physletb.2021.136591",

language = "English",

volume = "820",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "ELSEVIER SCIENCE BV",

}

RISING Collaboration, Grawe, H, Straub, K, Faestermann, T, Górska, M, Hinke, C, Krücken, R, Nowacki, F, Böhmer, M, Boutachkov, P, Geissel, H, Gernhäuser, R, Gottardo, A, Grȩbosz, J, Kurz, N, Liu, Z, Maier, L, Pietri, S, Podolyák, Z, Steiger, K, Weick, H, Wollersheim, HJ, Woods, PJ, Al-Dahan, N, Alkhomashi, N, Ataç, A, Blazhev, A, Braun, N, Čeliković, I, Davinson, T, Dillmann, I, Domingo-Pardo, C, Doornenbal, P, Farrelly, G, Farinon, F, de France, G, Gerl, J, Goel, N, Habermann, T, Hoischen, R, Janik, R, Karny, M, Kaşkaş, A, Kojouharov, I, Kröll, T, Lewitowicz, M, Litvinov, YA, Myalski, S, Nebel, F, Nishimura, S & Rigollet, C 2021, 'The (6⁺) isomer in ¹⁰²Sn revisited: Neutron and proton effective charges close to the double shell closure', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 820, 136591. https://doi.org/10.1016/j.physletb.2021.136591

TY - JOUR

T1 - The (6+) isomer in 102Sn revisited

T2 - Neutron and proton effective charges close to the double shell closure

AU - RISING Collaboration

AU - Grawe, H.

AU - Straub, K.

AU - Faestermann, T.

AU - Górska, M.

AU - Hinke, C.

AU - Krücken, R.

AU - Nowacki, F.

AU - Böhmer, M.

AU - Boutachkov, P.

AU - Geissel, H.

AU - Gernhäuser, R.

AU - Gottardo, A.

AU - Grȩbosz, J.

AU - Kurz, N.

AU - Liu, Z.

AU - Maier, L.

AU - Pietri, S.

AU - Podolyák, Zs

AU - Steiger, K.

AU - Weick, H.

AU - Wollersheim, H. J.

AU - Woods, P. J.

AU - Al-Dahan, N.

AU - Alkhomashi, N.

AU - Ataç, A.

AU - Blazhev, A.

AU - Braun, N.

AU - Čeliković, I.

AU - Davinson, T.

AU - Dillmann, I.

AU - Domingo-Pardo, C.

AU - Doornenbal, P.

AU - Farrelly, G.

AU - Farinon, F.

AU - de France, G.

AU - Gerl, J.

AU - Goel, N.

AU - Habermann, T.

AU - Hoischen, R.

AU - Janik, R.

AU - Karny, M.

AU - Kaşkaş, A.

AU - Kojouharov, I.

AU - Kröll, Th

AU - Lewitowicz, M.

AU - Litvinov, Yu A.

AU - Myalski, S.

AU - Nebel, F.

AU - Nishimura, S.

AU - Rigollet, C.

N1 - Funding Information: We thank the staff of the GSI ion source and accelerator for the preparation of a stable, high-intensity 124 Xe beam, and we thank the fragment separator technicians for setting up the beamline detectors. We are also grateful to the EUROBALL Owners Committee for the use of the Euroball Cluster Detectors. This work was supported by the BMBF under contracts 06MT238 , 06MT9156 , 06KY205I and 06KY9136I ; by the GSI Helmholtzzentrum für Schwerionenforschung GmbH ; by the Deutsche Forschungsgemeinschaft Cluster of Excellence 153 “Origin and Structure of the Universe”; by the EC within the FP6 through I3-EURONS (contract no. RII3-CT-2004-506065 ); by the STFC of the UK; and by the Swedish Research Council . Funding Information: We thank the staff of the GSI ion source and accelerator for the preparation of a stable, high-intensity 124Xe beam, and we thank the fragment separator technicians for setting up the beamline detectors. We are also grateful to the EUROBALL Owners Committee for the use of the Euroball Cluster Detectors. This work was supported by the BMBF under contracts 06MT238, 06MT9156, 06KY205I and 06KY9136I; by the GSI Helmholtzzentrum f?r Schwerionenforschung GmbH; by the Deutsche Forschungsgemeinschaft Cluster of Excellence 153 ?Origin and Structure of the Universe?; by the EC within the FP6 through I3-EURONS (contract no. RII3-CT-2004-506065); by the STFC of the UK; and by the Swedish Research Council. Publisher Copyright: © 2021 The Author(s)

PY - 2021/9/10

Y1 - 2021/9/10

N2 - In a high-energy fragmentation experiment at GSI an I=π(6+) isomer and its γ-decay are identified in 102Sn, the two-neutron neighbour of the doubly-magic 100Sn. Its half-life is measured to be T=1/2367(11) ns. The possible existence of further isomers is discussed in the framework of large-scale shell model (LSSM) calculations including up to five particle-hole excitations of the 100Sn core. From the precise B(E2; 6+→4+) strength and the recently remeasured value for B(E2; 8+→6+) in the two-proton hole neighbour 98Cd effective E2 polarization charges for protons and neutrons were inferred including LSSM corrections within the full N=4 0ħω space. The results are discussed in comparison to predicted and empirically determined effective operators.

AB - In a high-energy fragmentation experiment at GSI an I=π(6+) isomer and its γ-decay are identified in 102Sn, the two-neutron neighbour of the doubly-magic 100Sn. Its half-life is measured to be T=1/2367(11) ns. The possible existence of further isomers is discussed in the framework of large-scale shell model (LSSM) calculations including up to five particle-hole excitations of the 100Sn core. From the precise B(E2; 6+→4+) strength and the recently remeasured value for B(E2; 8+→6+) in the two-proton hole neighbour 98Cd effective E2 polarization charges for protons and neutrons were inferred including LSSM corrections within the full N=4 0ħω space. The results are discussed in comparison to predicted and empirically determined effective operators.

KW - Effective charges near Sn

KW - Electromagnetic transitions

KW - Shell model

UR - http://www.scopus.com/inward/record.url?scp=85113592461&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2021.136591

DO - 10.1016/j.physletb.2021.136591

M3 - Article

AN - SCOPUS:85113592461

SN - 0370-2693

VL - 820

JO - Physics Letters B

JF - Physics Letters B

M1 - 136591

ER -