Nuclear Data Sheets for A = 214

Wu, Shich-Chuan

doi:10.1016/j.nds.2009.02.002

Cited by 86 publications

(48 citation statements)

References 149 publications

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“…In more neutron-rich nuclei further reduction of the excitation energy is expected [21]. For example, in 214 Po, which has the same neutron number of 210 Hg and two protons above Z=82 shell closure ( 210 Hg has two protons below), the energy of the 3 − state is at around 1.3 MeV [22], the value which is predicted also in 210 Hg by particle-vibration coupling models [21], as shown in Fig. 3.…”

mentioning

confidence: 70%

New μs isomers in the neutron-rich 210 Hg nucleus

Gottardo¹,

Valiente-Dobón²,

Gadea³

et al. 2013

Physics Letters B

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Neutron-rich nuclei in the lead region, beyond N = 126, have been studied at the FRS-RISING setup at GSI, exploiting the fragmentation of a primary uranium beam. Two isomeric states have been identified in 210 Hg: the 8 + isomer expected from the seniority scheme in the νg 9/2 shell and a second one at low spin and low excitation energy. The decay strength of the 8 + isomer confirms the need of effective three-body forces in the case of neutron-rich lead isotopes. The other unexpected low-lying isomer has been tentatively assigned as a 3 − state, although this is in contrast with theoretical expectations. Keywords:Atomic nuclei are complex many-body systems with many degrees of freedom; nevertheless their spectral properties often show very regular features due to the symmetries of the nuclear hamiltonian. A remarkable example of this is offered by the occurrence of the seniority excitation scheme in spherical, semi-magic nuclei [1]. A deviation from this regular behaviour suggests a change in the underlying nuclear structure,

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mentioning

confidence: 70%

New μs isomers in the neutron-rich 210 Hg nucleus

Gottardo¹,

Valiente-Dobón²,

Gadea³

et al. 2013

Physics Letters B

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“…• The daughter isotope of 214 Bi, 214 Po, emits a number of de-excitation gammas with energies around and above the Q value of 136 Xe [50]. The gamma line at 2447 keV (1.57% intensity [50]) is very close to Q ββ , and its photoelectric peak would overlap the signal peak even for energy resolutions as good as 0.5% FWHM.…”

Section: Jhep05(2016)159mentioning

confidence: 99%

Sensitivity of NEXT-100 to neutrinoless double beta decay

Martín-Albo¹,

Vidal²,

Ferrario³

et al. 2016

J. High Energ. Phys.

131

162

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NEXT-100 is an electroluminescent high-pressure xenon gas time projection chamber that will search for the neutrinoless double beta (0νββ) decay of 136 Xe. The detector possesses two features of great value for 0νββ searches: energy resolution better than 1% FWHM at the Q value of 136 Xe and track reconstruction for the discrimination of signal and background events. This combination results in excellent sensitivity, as discussed in this paper. Material-screening measurements and a detailed Monte Carlo detector simulation predict a background rate for NEXT-100 of at most 4 × 10 −4 counts keV −1 kg −1 yr −1 . Accordingly, the detector will reach a sensitivity to the 0νββ-decay half-life of 2.8 × 10 25 years (90% CL) for an exposure of 100 kg · year, or 6.0 × 10 25 years after a run of 3 effective years.

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“…The experimental data seem fitted reasonably well by the model with two effective parameters x and c . Table III and compared with the corresponding experimental data [25][26][27][28][29][30][31], where the spin and parity in the parentheses indicate they are not confirmed experimentally. Table III and compared with the corresponding experimental data (Exp.…”

Section: Applicationsmentioning

confidence: 99%

“…[25][26][27][28][29][30][31] Cal. ) and compared with the corresponding experimental data, in which the corresponding value in the limiting cases and that at the crossover point determined by the overlaps is also shown, where "-" denotes that the corresponding experimental value is not available.…”

Section: Applicationsmentioning

confidence: 99%

Quantum phase transition in the spherical mean-field plus quadrupole-quadrupole and pairing model in a single-jshell

Pan

Draayer

2016

Phys. Rev. C

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The quantum phase transitional behavior of the spherical shell model mean-field plus the geometric quadrupole-quadrupole and standard pairing model within a single-j shell is analyzed in detail. Various quantities, such as low-lying energy levels, some typical energy ratios, the overlaps of the excited states with those of the corresponding limiting cases, B(E2) values and electric quadrupole moments of some low-lying states and their ratios, as functions of the control parameter of the model in a j = 15/2 shell are calculated as an example, in which only a crossover occurs due to the Pauli exclusion. The results show that there are noticeable changes within the crossover region of the rotation-like to the pair-excitation (superconducting) phase transition, especially in the half-filling case. As application to realistic nuclear systems, a chain of isotones 212 Rn-213 Fr-214 Ra-215 Ac is chosen to be described by the model with valence protons in the 1h 9/2 shell. As far as the lowlying energy levels, the experimentally observed B(E2) values, and the electric quadrupole moment within the yrast band are concerned, these nuclei seem fitted reasonably well. The results indicate that these nuclei are all within the rotation-like to the pair-excitation phase transition near to the crossover point.

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Nuclear Data Sheets for A = 214

Cited by 86 publications

References 149 publications

New μs isomers in the neutron-rich 210 Hg nucleus

New μs isomers in the neutron-rich 210 Hg nucleus

Sensitivity of NEXT-100 to neutrinoless double beta decay

Quantum phase transition in the spherical mean-field plus quadrupole-quadrupole and pairing model in a single-jshell

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