High-spin structure in the transitional nucleus 131Xe: Competitive neutron and proton alignment in the vicinity of the N = 82 shell closure

L. Kaya; A. Vogt; P. Reiter; M. Siciliano; B. Birkenbach; A. Blazhev; L. Coraggio; E. Teruya; N. Yoshinaga; K. Higashiyama; K. Arnswald; D. Bazzacco; A. Bracco; B. Bruyneel; L. Corradi; F.C.L. Crespi; G. de Angelis; J. Eberth; E. Farnea; E. Fioretto; C. Fransen; B. Fu; A. Gadea; A. Gargano; A. Giaz; A. Görgen; A. Gottardo; K. Hadyńska-Klęk; H. Hess; R. Hetzenegger; R. Hirsch; N. Itaco; P.R. John; J. Jolie; A. Jungclaus; W. Korten; S. Leoni; L. Lewandowski; S. Lunardi; R. Menegazzo; D. Mengoni; C. Michelagnoli; T.  Mijatović; G. Montagnoli; D. Montanari; C. Müller-Gatermann; D. Napoli; Zs. Podolyák; G. Pollarolo; A. Pullia; M. Queiser; F. Recchia; D. Rosiak; N. Saed-Samii; E. Şahin; F. Scarlassara; D. Schneiders; M. Seidlitz; B. Siebeck; J.F.  Smith; P.-A. Söderström; A.M. Stefanini; T. Steinbach; O. Stezowski; S. Szilner; B. Szpak; C. Ur; J.J. Valiente-Dobón; K. Wolf; K.O. Zell

doi:10.1103/PhysRevC.98.014309

High-spin structure in the transitional nucleus 131Xe: Competitive neutron and proton alignment in the vicinity of the N = 82 shell closure

L. Kaya, A. Vogt, P. Reiter, M. Siciliano, B. Birkenbach, A. Blazhev, L. Coraggio, E. Teruya, N. Yoshinaga, K. Higashiyama, K. Arnswald, D. Bazzacco, A. Bracco, B. Bruyneel, L. Corradi, F.C.L. Crespi, G. de Angelis, J. Eberth, E. Farnea, E. FiorettoC. Fransen, B. Fu, A. Gadea, A. Gargano, A. Giaz, A. Görgen, A. Gottardo, K. Hadyńska-Klęk, H. Hess, R. Hetzenegger, R. Hirsch, N. Itaco, P.R. John, J. Jolie, A. Jungclaus, W. Korten, S. Leoni, L. Lewandowski, S. Lunardi, R. Menegazzo, D. Mengoni, C. Michelagnoli, T. Mijatović, G. Montagnoli, D. Montanari, C. Müller-Gatermann, D. Napoli, Zs. Podolyák, G. Pollarolo, A. Pullia, M. Queiser, F. Recchia, D. Rosiak, N. Saed-Samii, E. Şahin, F. Scarlassara, D. Schneiders, M. Seidlitz, B. Siebeck, J.F. Smith, P.-A. Söderström, A.M. Stefanini, T. Steinbach, O. Stezowski, S. Szilner, B. Szpak, C. Ur, J.J. Valiente-Dobón, K. Wolf, K.O. Zell

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Abstract

The transitional nucleus 131Xe is investigated after multinucleon transfer in the
136Xe + 208Pb and 136Xe + 238U reactions employing the high-resolution Advanced γ -Tracking Array (AGATA) coupled to the magnetic spectrometer PRISMA at the Laboratori Nazionali di Legnaro, Italy, and as an elusive reaction product in the fusion-evaporation reaction 124Sn (11B,p3n) 131Xe employing the High-efficiency Observatory for γ-Ray Unique Spectroscopy (HORUS) γ-ray array coupled to a double-sided silicon strip detector at the University of Cologne, Germany. The level scheme of 131Xe is extended to 5 MeV. A pronounced backbending is observed at ℏω ≈ 0.4 MeV along the negative-parity one-quasiparticle νh 11/2 (α=−1/2) band. The results are compared to the high-spin systematics of the Z = 54 isotopes and the N = 77 isotones. Large-scale shell-model calculations employing the PQM130, SN100PN, GCN50:82, SN100-KTH, and a realistic effective interaction reproduce the experimental findings and provide guidance to elucidate the structure of the high-spin states. Further calculations in 129−132Xe provide insight into the changing nuclear structure along the Xe chain towards the N=82 shell closure. Proton occupancy in the π0h11/2 orbital is found to be decisive for the description of the observed backbending phenomenon.

Original language	English
Article number	014309
Number of pages	21
Journal	Physical Review C
Volume	98
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.98.014309
Publication status	Published - 6 Jul 2018

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2018 07 06 Paper_131XeAccepted author manuscript, 890 KBLicence: CC BY-NC-ND

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Kaya, L., Vogt, A., Reiter, P., Siciliano, M., Birkenbach, B., Blazhev, A., Coraggio, L., Teruya, E., Yoshinaga, N., Higashiyama, K., Arnswald, K., Bazzacco, D., Bracco, A., Bruyneel, B., Corradi, L., Crespi, F. C. L., de Angelis, G., Eberth, J., Farnea, E., ... Zell, K. O. (2018). High-spin structure in the transitional nucleus 131Xe: Competitive neutron and proton alignment in the vicinity of the N = 82 shell closure. Physical Review C, 98(1), Article 014309. https://doi.org/10.1103/PhysRevC.98.014309

@article{08787f0ef5a649b0929fd20f338cf264,

title = "High-spin structure in the transitional nucleus 131Xe: Competitive neutron and proton alignment in the vicinity of the N = 82 shell closure",

abstract = "The transitional nucleus 131Xe is investigated after multinucleon transfer in the 136Xe + 208Pb and 136Xe + 238U reactions employing the high-resolution Advanced γ -Tracking Array (AGATA) coupled to the magnetic spectrometer PRISMA at the Laboratori Nazionali di Legnaro, Italy, and as an elusive reaction product in the fusion-evaporation reaction 124Sn (11B,p3n) 131Xe employing the High-efficiency Observatory for γ-Ray Unique Spectroscopy (HORUS) γ-ray array coupled to a double-sided silicon strip detector at the University of Cologne, Germany. The level scheme of 131Xe is extended to 5 MeV. A pronounced backbending is observed at ℏω ≈ 0.4 MeV along the negative-parity one-quasiparticle νh 11/2 (α=−1/2) band. The results are compared to the high-spin systematics of the Z = 54 isotopes and the N = 77 isotones. Large-scale shell-model calculations employing the PQM130, SN100PN, GCN50:82, SN100-KTH, and a realistic effective interaction reproduce the experimental findings and provide guidance to elucidate the structure of the high-spin states. Further calculations in 129−132Xe provide insight into the changing nuclear structure along the Xe chain towards the N=82 shell closure. Proton occupancy in the π0h11/2 orbital is found to be decisive for the description of the observed backbending phenomenon.",

author = "L. Kaya and A. Vogt and P. Reiter and M. Siciliano and B. Birkenbach and A. Blazhev and L. Coraggio and E. Teruya and N. Yoshinaga and K. Higashiyama and K. Arnswald and D. Bazzacco and A. Bracco and B. Bruyneel and L. Corradi and F.C.L. Crespi and {de Angelis}, G. and J. Eberth and E. Farnea and E. Fioretto and C. Fransen and B. Fu and A. Gadea and A. Gargano and A. Giaz and A. G{\"o}rgen and A. Gottardo and K. Hady{\'n}ska-Kl{\c e}k and H. Hess and R. Hetzenegger and R. Hirsch and N. Itaco and P.R. John and J. Jolie and A. Jungclaus and W. Korten and S. Leoni and L. Lewandowski and S. Lunardi and R. Menegazzo and D. Mengoni and C. Michelagnoli and T. Mijatovi{\'c} and G. Montagnoli and D. Montanari and C. M{\"u}ller-Gatermann and D. Napoli and Zs. Podoly{\'a}k and G. Pollarolo and A. Pullia and M. Queiser and F. Recchia and D. Rosiak and N. Saed-Samii and E. {\c S}ahin and F. Scarlassara and D. Schneiders and M. Seidlitz and B. Siebeck and J.F. Smith and P.-A. S{\"o}derstr{\"o}m and A.M. Stefanini and T. Steinbach and O. Stezowski and S. Szilner and B. Szpak and C. Ur and J.J. Valiente-Dob{\'o}n and K. Wolf and K.O. Zell",

year = "2018",

month = jul,

day = "6",

doi = "10.1103/PhysRevC.98.014309",

language = "English",

volume = "98",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "1",

}

Kaya, L, Vogt, A, Reiter, P, Siciliano, M, Birkenbach, B, Blazhev, A, Coraggio, L, Teruya, E, Yoshinaga, N, Higashiyama, K, Arnswald, K, Bazzacco, D, Bracco, A, Bruyneel, B, Corradi, L, Crespi, FCL, de Angelis, G, Eberth, J, Farnea, E, Fioretto, E, Fransen, C, Fu, B, Gadea, A, Gargano, A, Giaz, A, Görgen, A, Gottardo, A, Hadyńska-Klęk, K, Hess, H, Hetzenegger, R, Hirsch, R, Itaco, N, John, PR, Jolie, J, Jungclaus, A, Korten, W, Leoni, S, Lewandowski, L, Lunardi, S, Menegazzo, R, Mengoni, D, Michelagnoli, C, Mijatović, T, Montagnoli, G, Montanari, D, Müller-Gatermann, C, Napoli, D, Podolyák, Z, Pollarolo, G, Pullia, A, Queiser, M, Recchia, F, Rosiak, D, Saed-Samii, N, Şahin, E, Scarlassara, F, Schneiders, D, Seidlitz, M, Siebeck, B, Smith, JF, Söderström, P-A, Stefanini, AM, Steinbach, T, Stezowski, O, Szilner, S, Szpak, B, Ur, C, Valiente-Dobón, JJ, Wolf, K & Zell, KO 2018, 'High-spin structure in the transitional nucleus 131Xe: Competitive neutron and proton alignment in the vicinity of the N = 82 shell closure', Physical Review C, vol. 98, no. 1, 014309. https://doi.org/10.1103/PhysRevC.98.014309

TY - JOUR

T1 - High-spin structure in the transitional nucleus 131Xe

T2 - Competitive neutron and proton alignment in the vicinity of the N = 82 shell closure

AU - Kaya, L.

AU - Vogt, A.

AU - Reiter, P.

AU - Siciliano, M.

AU - Birkenbach, B.

AU - Blazhev, A.

AU - Coraggio, L.

AU - Teruya, E.

AU - Yoshinaga, N.

AU - Higashiyama, K.

AU - Arnswald, K.

AU - Bazzacco, D.

AU - Bracco, A.

AU - Bruyneel, B.

AU - Corradi, L.

AU - Crespi, F.C.L.

AU - de Angelis, G.

AU - Eberth, J.

AU - Farnea, E.

AU - Fioretto, E.

AU - Fransen, C.

AU - Fu, B.

AU - Gadea, A.

AU - Gargano, A.

AU - Giaz, A.

AU - Görgen, A.

AU - Gottardo, A.

AU - Hadyńska-Klęk, K.

AU - Hess, H.

AU - Hetzenegger, R.

AU - Hirsch, R.

AU - Itaco, N.

AU - John, P.R.

AU - Jolie, J.

AU - Jungclaus, A.

AU - Korten, W.

AU - Leoni, S.

AU - Lewandowski, L.

AU - Lunardi, S.

AU - Menegazzo, R.

AU - Mengoni, D.

AU - Michelagnoli, C.

AU - Mijatović, T.

AU - Montagnoli, G.

AU - Montanari, D.

AU - Müller-Gatermann, C.

AU - Napoli, D.

AU - Podolyák, Zs.

AU - Pollarolo, G.

AU - Pullia, A.

AU - Queiser, M.

AU - Recchia, F.

AU - Rosiak, D.

AU - Saed-Samii, N.

AU - Şahin, E.

AU - Scarlassara, F.

AU - Schneiders, D.

AU - Seidlitz, M.

AU - Siebeck, B.

AU - Smith, J.F.

AU - Söderström, P.-A.

AU - Stefanini, A.M.

AU - Steinbach, T.

AU - Stezowski, O.

AU - Szilner, S.

AU - Szpak, B.

AU - Ur, C.

AU - Valiente-Dobón, J.J.

AU - Wolf, K.

AU - Zell, K.O.

PY - 2018/7/6

Y1 - 2018/7/6

N2 - The transitional nucleus 131Xe is investigated after multinucleon transfer in the 136Xe + 208Pb and 136Xe + 238U reactions employing the high-resolution Advanced γ -Tracking Array (AGATA) coupled to the magnetic spectrometer PRISMA at the Laboratori Nazionali di Legnaro, Italy, and as an elusive reaction product in the fusion-evaporation reaction 124Sn (11B,p3n) 131Xe employing the High-efficiency Observatory for γ-Ray Unique Spectroscopy (HORUS) γ-ray array coupled to a double-sided silicon strip detector at the University of Cologne, Germany. The level scheme of 131Xe is extended to 5 MeV. A pronounced backbending is observed at ℏω ≈ 0.4 MeV along the negative-parity one-quasiparticle νh 11/2 (α=−1/2) band. The results are compared to the high-spin systematics of the Z = 54 isotopes and the N = 77 isotones. Large-scale shell-model calculations employing the PQM130, SN100PN, GCN50:82, SN100-KTH, and a realistic effective interaction reproduce the experimental findings and provide guidance to elucidate the structure of the high-spin states. Further calculations in 129−132Xe provide insight into the changing nuclear structure along the Xe chain towards the N=82 shell closure. Proton occupancy in the π0h11/2 orbital is found to be decisive for the description of the observed backbending phenomenon.

AB - The transitional nucleus 131Xe is investigated after multinucleon transfer in the 136Xe + 208Pb and 136Xe + 238U reactions employing the high-resolution Advanced γ -Tracking Array (AGATA) coupled to the magnetic spectrometer PRISMA at the Laboratori Nazionali di Legnaro, Italy, and as an elusive reaction product in the fusion-evaporation reaction 124Sn (11B,p3n) 131Xe employing the High-efficiency Observatory for γ-Ray Unique Spectroscopy (HORUS) γ-ray array coupled to a double-sided silicon strip detector at the University of Cologne, Germany. The level scheme of 131Xe is extended to 5 MeV. A pronounced backbending is observed at ℏω ≈ 0.4 MeV along the negative-parity one-quasiparticle νh 11/2 (α=−1/2) band. The results are compared to the high-spin systematics of the Z = 54 isotopes and the N = 77 isotones. Large-scale shell-model calculations employing the PQM130, SN100PN, GCN50:82, SN100-KTH, and a realistic effective interaction reproduce the experimental findings and provide guidance to elucidate the structure of the high-spin states. Further calculations in 129−132Xe provide insight into the changing nuclear structure along the Xe chain towards the N=82 shell closure. Proton occupancy in the π0h11/2 orbital is found to be decisive for the description of the observed backbending phenomenon.

U2 - 10.1103/PhysRevC.98.014309

DO - 10.1103/PhysRevC.98.014309

M3 - Article

SN - 2469-9985

VL - 98

JO - Physical Review C

JF - Physical Review C

IS - 1

M1 - 014309

ER -

High-spin structure in the transitional nucleus 131Xe: Competitive neutron and proton alignment in the vicinity of the N = 82 shell closure

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