Nuclear structure in odd-odd nuclei,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>144</mml:mn><mml:mo>&lt;~</mml:mo><mml:mi>A</mml:mi><mml:mo>&lt;~</mml:mo><mml:mn>194</mml:mn></mml:math>

Jain, Ashok; Sheline, Raymond K.; Headly, D.M.; Sood, P. C.; Burke, D. G.; Hřivnáčová, I.; Kvasil, J.; Nosek, D.; Hoff, R. W.

doi:10.1103/revmodphys.70.843

Cited by 91 publications

(42 citation statements)

References 138 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In deformed nuclei, the angular-momentum projections (onto the symmetry axis) of the odd proton ( p ) and the odd neutron ( n ) couple to a total spin projection, K, with a well-established Gallagher-Moszkowski (GM) [8] splitting * frxu@pku.edu.cn of the doublet states with K = | p + n | and | p − n | in odd-odd nuclei [9]. For the present purposes, the situation when both the odd neutron and the odd proton occupy highorbitals is particularly interesting, because it leads to high-spin and low-spin states at similar energies.…”

Section: Introductionmentioning

confidence: 99%

High-spin isomeric structures in exotic odd-odd nuclei: Exploration of the proton drip line and beyond

Liu

Shuwei

et al. 2007

Phys. Rev. C

View full text Add to dashboard Cite

We investigate the role of two-quasiparticle isomeric states along the proton drip line, using configurationconstrained potential-energy-surface calculations. In contrast to even-even nuclei, odd-odd nuclei can have coexisting low-lying two-quasiparticle states. The low excitation energy and high angular momentum can lead to long-lived isomers. Also, because of the hindrance by spin selection, the probabilities of β and proton decays from high-spin isomers can be reduced significantly. The present calculations reproduce reasonably well the available data for observed isomers in such nuclei. Unobserved high-spin isomers are predicted, which could be useful for future experimental studies of exotic nuclei at and beyond the proton drip line.

show abstract

Section: Introductionmentioning

confidence: 99%

High-spin isomeric structures in exotic odd-odd nuclei: Exploration of the proton drip line and beyond

Liu

Shuwei

et al. 2007

Phys. Rev. C

View full text Add to dashboard Cite

show abstract

“…, were extracted [28,29]. The former are usually less than 50 keV, while the latter amount to 100-300 keV.…”

Section: A Odd-odd Nucleimentioning

confidence: 99%

“…A collective rotational band is built on each of two bandheads. Energies of the band members with angular momentum I are usually presented as [28] …”

Section: A Odd-odd Nucleimentioning

confidence: 99%

Qαvalues in superheavy nuclei from the deformed Woods-Saxon model

2014

View full text Add to dashboard Cite

Masses of superheavy (SH) nuclei with Z = 98−128, including odd and odd-odd nuclei, are systematically calculated within the microscopic-macroscopic model based on the deformed Woods-Saxon potential. Ground states are found by minimizing energy over deformations and configurations. Pairing in odd particle-number systems is treated either by blocking or by adding the BCS energy of the odd quasiparticle. Three new parameters are introduced which may be interpreted as the constant mean pairing energies for even-odd, odd-even and odd-odd nuclei. They are adjusted by a fit to masses of heavy nuclei. Other parameters of the model, fixed previously by fitting masses of even-even heavy nuclei, are kept unchanged. With this adjustment, the masses of SH nuclei are predicted and then used to calculate α-decay energies to be compared to known measured values. It turns out that the agreement between calculated Qα values with data in SH nuclei is better than in the region of the mass fit. The model overestimates Qα for Z = 111 − 113. Ground state (g.s.) configurations in some SH nuclei hint to a possible α-decay hindrance. The calculated configurationpreserving transition energies show that in some cases this might explain discrepancies, but more data is needed to explain the situation.

show abstract

“…In the present work we report on the characterization of a new 2.29 s isomer in neutron-rich 174 Tm (Z = 69). The motivation to study such deformed odd-odd nuclei is based on their level structures, whose excitation spectra are among the most intricate and poorly characterized in nuclear structure physics [11]. This is associated with partially blocked pairing, high level density (resulting in a multitude of low-lying configurations), and complex decay patterns.…”

Section: Introductionmentioning

confidence: 99%

Kπ=0+2.29 s isomer in neutron-richTm174
Chakrawarthy¹,
Walker²,
Ressler³
et al. 2006
Phys. Rev. C
11
0
9
0
View full text Add to dashboard Cite

Gamma-ray and conversion-electron spectroscopy have established the existence of a 2.29(1) s, K π = 0 + , isomeric state in neutron-rich 174 Tm. The isomer deexcites via 100-and 152-keV electromagnetic transitions. First results from a newly commissioned Si(Li) detector array have established their M1 and E3 multipolarities, respectively. The single-particle configurations of the excited states suggest that the E3 transition originates from a πh −1 11/2 → πd 3/2 configuration change, whereas the M1 transition occurs between members of a GallagharMoszkowski doublet. From the measured half-life, the deduced B(E3) value of 0.024(2) W.u. is highly hindered. The reported measurements resolve ambiguities in the previously proposed β decay scheme of 174 Er to 174 Tm.

show abstract

Nuclear structure in odd-odd nuclei,144<~A<~194

Cited by 91 publications

References 138 publications

High-spin isomeric structures in exotic odd-odd nuclei: Exploration of the proton drip line and beyond

High-spin isomeric structures in exotic odd-odd nuclei: Exploration of the proton drip line and beyond

Qαvalues in superheavy nuclei from the deformed Woods-Saxon model

Kπ=0+2.29 s isomer in neutron-richTm174
Chakrawarthy¹,
Walker²,
Ressler³
et al. 2006
Phys. Rev. C
11
0
9
0
View full text Add to dashboard Cite

Contact Info

Product

Resources

About

Nuclear structure in odd-odd nuclei,144<~A<~194

Cited by 91 publications

References 138 publications

High-spin isomeric structures in exotic odd-odd nuclei: Exploration of the proton drip line and beyond

High-spin isomeric structures in exotic odd-odd nuclei: Exploration of the proton drip line and beyond

Qαvalues in superheavy nuclei from the deformed Woods-Saxon model

Kπ=0+2.29 s isomer in neutron-richTm174Chakrawarthy1, Walker2, Ressler3 et al. 2006Phys. Rev. C11090View full textAdd to dashboardCite

Contact Info

Product

Resources

About

Kπ=0+2.29 s isomer in neutron-richTm174
Chakrawarthy¹,
Walker²,
Ressler³
et al. 2006
Phys. Rev. C
11
0
9
0
View full text Add to dashboard Cite