Isomeric island in the vicinity of 66Fe

Daugas, J. M.; Sawicka, M.; Pfützner, M.; Matéa, I.; Grawe, H.; Grzywacz, R.; Achouri, N. L.; Angélique, J. C.; Baiborodin, D.; Becker, F.; Bélier, G.; Bentida, R.; Béraud, R.; Bingham, C.D.; Borcea, C.; Borcea, R.; Bouchez, E.; Buţă, A.; Catford, W. N.; Drǎgulescu, E.; Emsallem, A.; Giovinazzo, J.; Girod, M.; Goutte, Héloϊse; Gorgiev, G.; Jones, K. L.; Hammache, F.; Ibrahim, F.; Lemmon, R. C.; Lewitowicz, M.; López-Jiménez, M. J.; Mayet, P.; Méot, V.; Negoiţă, F.; Oliveira-Santos, F. De; Perru, O.; Regan, P. H.; Roig, O.; Rykaczewski, K. P.; Saint‐Laurent, M. G.; Sauvestre, J. E.; Sletten, G.; Sorlin, O.; Stănoiu, M.; Stefan, I.; Stödel, C.; Theisen, Ch.; Verney, D.; Ż̷ylicz, J.

doi:10.1063/1.2200971

Cited by 6 publications

(11 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, we conclude that the observed resonance curve results from the presence of a hitherto unknown long-lived isomer in 65 Fe with an excitation energy of 402 keV. The present knowledge of the level structure of the odd-A Fe isotopes with N 35-41 based on recent experimental data [8,9,11,35] together with conclusions from this work is summarized in Fig. 5.…”

supporting

confidence: 55%

“…Our new long-lived isomer in 65 Fe is very close in energy to this new 397 keV level. This leads to a level structure similar to that in 67 Fe where an isomeric state (T 1=2 75 s) was suggested [9] to exist a few keV above a known 388 keV state. From the properties of the observed rays in 65;67 Fe the most likely transition multipolarities can be derived and used to infer a plausible level scheme.…”

mentioning

confidence: 59%

“…Other short-lived isomers in 65;67 Fe are interpreted to originate from different orbitals [9], indicating a rapid change in nuclear structure with increasing neutron number. Despite the substantial experimental effort [8][9][10][11][12] in recent years the understanding of nuclear structure in the region of Z < 28 and N 40 remains incomplete and unclear.…”

mentioning

confidence: 98%

“…Despite the substantial experimental effort [8][9][10][11][12] in recent years the understanding of nuclear structure in the region of Z < 28 and N 40 remains incomplete and unclear. New experimental information, in particular if not obtainable with classical spectroscopic techniques, will be very valuable.…”

mentioning

confidence: 99%

“…In 65 Fe a short-lived isomer (T 1=2 0:43 s) at 364 keV is known [8]. Recently, a 33.5 keV E1 transition was discovered [9] feeding this 364 keV level. Our new long-lived isomer in 65 Fe is very close in energy to this new 397 keV level.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Discovery of a Nuclear Isomer inFe65with PenningTrap Mass Spectrometry

et al. 2008

View full text Add to dashboard Cite

A new long-lived isomeric state in (65)Fe has been discovered with Penning trap mass spectrometry and high-precision mass measurements of the neutron-rich isotopes (63-65)Fe and (64-66)Co have been performed with the Low-Energy Beam and Ion Trap Facility at the NSCL. For the new isomer in (65)Fe an excitation energy of 402(5) keV has been determined from the measured mass difference between the isomeric and ground states. The mass uncertainties of all isotopes have been reduced by a factor of 10-100 compared to previous results. In the case of (64)Co the previous mass value was found to deviate by about 5 standard deviations from the new measurement.

show abstract

supporting

confidence: 55%

mentioning

confidence: 59%

mentioning

confidence: 98%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Discovery of a Nuclear Isomer inFe65with PenningTrap Mass Spectrometry

et al. 2008

View full text Add to dashboard Cite

show abstract

β−-decay of [sup 65]Mn to [sup 65]Fe

Fraile¹,

Mach²,

Briz³

et al. 2013

AIP Conference Proceedings

View full text Add to dashboard Cite

The low energy structure of 65 Fe has been studied by means of γ-and fast-timing spectroscopy. A level scheme of 65 Fe populated following the β − decay of 65 Mn was established for the first time. It includes 41 levels and 85 transitions. The excitation energy of the β-decaying isomer in 65 Fe has been precisely determined at 393.7(2) keV. The β delayed neutron emission branch was measured as Pn = 7.9(12) %, which cannot be reconciled with the previously reported value of 21.0(5) %. Four γ-rays and four excited states in 64 Fe were identified as being populated following the β-n decay. Four lifetimes and five lifetime limits in the subnanosecond range have been measured using the Advanced Time-Delayed Method. The level scheme is compared with shell-model calculations. Tentative spin and parity assignments are proposed based on the observed transition rates, the calculations and the systematics of the region.

show abstract

Structure ofCo65,67studied through theβdecay of
Pauwels¹,
Иванов²,
Bree³
et al. 2009
Phys. Rev. C
58
7
58
0
View full text Add to dashboard Cite

The neutron-rich isotopes 65,67 Fe and 65 Co have been produced at the LISOL facility, Louvain-La-Neuve, in the proton-induced fission of 238 U. Beams of these isotopes have been extracted with high selectivity by means of resonant laser ionization combined with mass separation. Yrast and near-yrast levels of 65 Co have also been populated in the 64 Ni+ 238 U reaction at Argonne National Laboratory. The level structure of 65 Co could be investigated by combining all the information from both the 65 Fe and 65 Co β decay and the deep-inelastic reaction. The 65 Fe, 65 Co, and 67 Fe decay schemes and the 65 Co yrast structure are fully established. The 65,67 Co level structures can be interpreted as resulting from the coexistence of core-coupled states with levels based on a low-energy proton-intruder configuration.

show abstract

Isomeric island in the vicinity of 66Fe

Cited by 6 publications

References 0 publications

Discovery of a Nuclear Isomer inFe65with PenningTrap Mass Spectrometry

Discovery of a Nuclear Isomer inFe65with PenningTrap Mass Spectrometry

β−-decay of [sup 65]Mn to [sup 65]Fe

Structure ofCo65,67studied through theβdecay of
Pauwels¹,
Иванов²,
Bree³
et al. 2009
Phys. Rev. C
58
7
58
0
View full text Add to dashboard Cite

Contact Info

Product

Resources

About

Isomeric island in the vicinity of 66Fe

Cited by 6 publications

References 0 publications

Discovery of a Nuclear Isomer inFe65with PenningTrap Mass Spectrometry

Discovery of a Nuclear Isomer inFe65with PenningTrap Mass Spectrometry

β−-decay of [sup 65]Mn to [sup 65]Fe

Structure ofCo65,67studied through theβdecay ofPauwels1, Иванов2, Bree3 et al. 2009Phys. Rev. C587580View full textAdd to dashboardCite

Contact Info

Product

Resources

About

Structure ofCo65,67studied through theβdecay of
Pauwels¹,
Иванов²,
Bree³
et al. 2009
Phys. Rev. C
58
7
58
0
View full text Add to dashboard Cite