High spin structure in127Xe and125Xe

Wiedenhöver, I.; Neuneyer, U.; Kerskens, Christian; Altmann, J.; Stuch, O.; Theuerkauf, J.; Siems, G.; Wirowski, R.; Eschenauer, M.; Brentano, P. von; Schubart, R.; Kluge, H.‐J.; Maier, K. H.

doi:10.1007/bf01301280

Cited by 11 publications

(11 citation statements)

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“…A delayed upbend in 123,125 Xe takes place at a higher frequency compared to the neighboring nuclei. This behavior is explained by the Pauli blocking of the first pair of h 11/2 neutrons [42,43]. In 129 Xe a pronounced upbend is found.…”

Section: Discussionmentioning

confidence: 90%

“…The newly established states of 131 Xe are marked with thicker lines. The reevaluated J π = 23/2 − 1 state in 131 Xe is 7 keV higher in excitation energy compared to the corresponding state in 129 Te, thus, the 2518-keV state in 131 Xe fits the systematics of J π = 23/2 Figure 6(b) compares the levels in the favored negative-parity band in 131 Xe from the present work with those in the odd-mass nuclei 123−129 Xe [16,43,78]. The midshell nuclei 123−127 Xe exhibit excitation spectra which are rotational in character.…”

Section: Discussionmentioning

confidence: 99%

“…Based on the experimental data, a J π = 27/2 6. Evolution of excited states in the negative-parity band along (a) the odd-mass N = 77 isotones from Z = 50 to Z = 64 [72][73][74][75][76][77] and along (b) the odd-mass Z = 54 isotopes from N = 69 to N = 77 [16,43,78]. Newly discovered states in 131 Xe are marked with thick lines.…”

Section: Resultsmentioning

confidence: 99%

“…For the lower odd-mass neighbors of 131 Xe, 125 Xe, and 127 Xe, both low-spin structures from 3 He-and α-induced reactions [40,41] and elaborate high-spin information from heavy-ion reactions are available. High-spin states of 125 Xe were studied at the OSIRIS Compton-suppressed γ -ray spectrometer via the 116 Cd( 13 C,4n) reaction by Granderath et al [42] and via the 48 Ca( 82 Se,5n) reaction by Wiedenhöver et al [43] up to 8.7 MeV. Later, the level scheme and high-spin band structures were significantly extended by Moon et al [15] and Al-Khatib et al [44], respectively.…”

Section: Introductionmentioning

confidence: 99%

“…In 127 Xe, high-spin states were thoroughly studied after 48 Ca( 82 Se,3n) reactions at 275 MeV [43]. The negative-parity ground-state band was extended up to 9.5 MeV and a spin of J π = (51/2 − ).…”

Section: Introductionmentioning

confidence: 99%

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High-spin structure in the transitional nucleus Xe131 : Competitive neutron and proton alignment in the vicinity of the N=82 shell closure

Kaya¹,

Vogt²,

Reiter³

et al. 2018

Phys. Rev. C

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The transitional nucleus 131 Xe is investigated after multinucleon transfer in the 136 Xe + 208 Pb and 136 Xe + 238 U 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 124 Sn( 11 B,p3n) 131 Xe 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 131 Xe is extended to 5 MeV. A pronounced backbending is observed at hω ≈ 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 129−132 Xe provide insight into the changing nuclear structure along the Xe chain towards the N = 82 shell

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