Low-lying<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>E</mml:mi><mml:mn>1</mml:mn><mml:mo>,</mml:mo><mml:mi>M</mml:mi><mml:mn>1</mml:mn></mml:mrow></mml:math>, and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>E</mml:mi><mml:mn>2</mml:mn></mml:mrow></mml:math>strength distributions in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">Xe</mml:mi><

Garrel, H. von; Brentano, P. von; Fransen, C.; Frießner, G.; Hollmann, N.; Jolie, J.; Käppeler, F.; Käubler, L.; Kneißl, U.; Kohstall, C.; Kostov, L.K.; Linnemann, A.; Mücher, D.; Pietralla, N.; Pitz, H. H.; Rusev, G.; Scheck, M.; Schilling, K. D.; Scholl, C.; Schwengner, R.; Stedile, F.; Walter, S.; Werner, V.; Wisshak, K.

doi:10.1103/physrevc.73.054315

Cited by 68 publications

(50 citation statements)

References 84 publications

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“…We consider this state to be an excellent candidate for being the 2 + 1,ms state of 128 Xe. Two-phonon MSSs in the stable even-even isotopes of the xenon chain were recently reported from NRF experiments [136]. A strong dipole excitation at 2838 keV excitation energy was observed that dominates the dipole strength distribution up to 4 MeV.…”

Section: CDmentioning

confidence: 95%

“…Fig. 4 shows the data from the first investigation of a 2 + 1,ms state with the NRF method which resulted in the observation of the 2 + 1,ms state and the twophonon 1 + mixed-symmetry states in the nucleus 136 Ba. Application of the NRF technique to the study of MSSs, in particular to two-phonon states with J π = 1 + , has recently been reviewed in Ref.…”

Section: Nuclear Resonance Fluorescencementioning

confidence: 98%

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Experiments on multiphonon states with proton–neutron mixed symmetry in vibrational nuclei

Pietralla

Brentano

Lisetskiy

2008

Progress in Particle and Nuclear Physics

143

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Section: CDmentioning

confidence: 95%

Section: Nuclear Resonance Fluorescencementioning

confidence: 98%

Experiments on multiphonon states with proton–neutron mixed symmetry in vibrational nuclei

Pietralla

Brentano

Lisetskiy

2008

Progress in Particle and Nuclear Physics

143

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“…(2372 keV level.) This level was identified in (γ, γ ′ ) experiments [19], but we observe the γ ray to have a 3.4 MeV threshold, which means it is not be a groundstate transition, but rather one to the 2 + 1 state, which establishes a 3219.5 keV level.…”

Section: Kevmentioning

confidence: 99%

“…The most recent studies of the β − decays of 134 I (J π = 4 + , T 1/2 = 52.5 min) and 134m I (8 − , 3.52 min) were performed over forty years ago [11][12][13][14] and the EC decay of 134 Cs (4 + , 2.0652 years) populates only the first excited state of 134 Xe [15]. More recent studies include Coulomb excitation in inverse kinematics [16][17][18], photon scattering measurements on high-pressure gas targets [19], highspin studies of states populated in multinucleon transfer reactions [20] and fission [21], and inelastic neutron scattering on natural [22] and enriched solid XeF 2 targets [23].…”

Section: Introductionmentioning

confidence: 99%

Level lifetimes and the structure of Xe134 from inelastic neutron scattering

et al. 2017

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The level structure of 134 Xe was studied with the inelastic neutron scattering reaction followed by γ-ray detection. A number of level lifetimes were determined for the first time with the Doppler-shift attenuation method and the low-lying excited states were characterized. From this new spectroscopic information, the third excited state, a 0 + level which had only been observed in a previous inelastic neutron scattering study, was verified. Reduced transition probabilities were calculated; comparisons were drawn with a vibrational description of the nucleus and found lacking. The 3 − octupole phonon has been confirmed, and the complete negative-parity multiplet resulting from the ν(1h 11/2 2d 3/2 ) configuration has also been tentatively identified for the first time in the N = 80 isotones.

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“…The maximum B(E1) for the ground-state transition for this level is more than a factor of three smaller than that predicted by QPM calculations for the 1 − QOC state [25]. Based on the very systematic behavior of the energy [25,70,74] of the 1 − QOC state in nearby isotopic chains, the 3185.6-keV level is, however, the best candidate, as it lies about 50 keV below the E(2 + 1 )+E(3 − 1 ) energy. Clearly, the parities need to be determined for these levels.…”

Section: Two-phonon Mixed-symmetry Statesmentioning

confidence: 99%

Collective and two-quasiparticle excitations in128Te

et al. 2012

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Excited levels of 128 Te to 3.3 in MeV excitation have been studied using γ-ray spectroscopy following inelastic scattering of accelerator-produced neutrons. Spectroscopic information, including transition energies, level spins, E2/M1 multipole-mixing ratios, and γ-ray branching ratios, was determined from γ-ray excitation functions measured from E n = 2.15 to 3.33 MeV in 90 keV increments, γ-ray angular distributions measured at E n = 2.2, 2.8, and 3.3 MeV, and γγ coincidences measured at E n = 3.6 MeV. Lifetimes of levels in 128 Te were deduced using Doppler-shift attenuation techniques. Absolute transition probabilities were determined for many levels and compared to interacting boson model and particle-core coupling model calculations to identify few particle and collective structures; states exhibiting the decay characteristics expected for two-phonon, mixed-symmetry, and quadrupole-octupole coupled states are identified.

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Low-lyingE1,M1, andE2strength distributions inXe<

Cited by 68 publications

References 84 publications

Experiments on multiphonon states with proton–neutron mixed symmetry in vibrational nuclei

Experiments on multiphonon states with proton–neutron mixed symmetry in vibrational nuclei

Level lifetimes and the structure of Xe134 from inelastic neutron scattering

Collective and two-quasiparticle excitations in128Te

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