Excited states in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>52</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">Fe</mml:mi></mml:math>and the origin of the yrast trap at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>I</mml:mi></mml:mrow><mml:mrow><mml:mi>π</mml:mi></mml:mrow></mml:msup></mml:mrow><mml:mrow><mml:msup><mml:mrow><mml:mo>=</mml:m

Ur, C. A.; Bucurescu, D.; Lenzi, S. M.; Martı́nez-Pinedo, G.; Napoli, D. R.; Bazzacco, D.; Brandolini, F.; Brink, D.M.; Cameron, J. A.; Caurier, E.; Angelis, G. de; Poli, M.; Gadea, A.; Lunardi, S.; Mărginean, N.; Nagarajan, M.A.; Pavan, P.; Alvarez, C. Rossi; Svensson, C. E.

doi:10.1103/physrevc.58.3163

Cited by 47 publications

(32 citation statements)

References 35 publications

(44 reference statements)

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“…Finally, in Ref. [22] a level was observed at 5137 keV, de-exciting by three γ-rays of 740.6, 1553 and 2753 keV. The last two γ-ray energies agree marginally with our observed γ-rays at 1556 and 2755 keV, however we did not observe the 740.6 keV γ-ray, which is supposed to be stronger than the 1553 keV γ line according to Ref.…”

Section: Half-life Of Thesupporting

confidence: 77%

Observation of the 2+ isomer in Co52

et al. 2016

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We report the first observation of the 2 + isomer in 52 Co, produced in the β decay of the 0 + , 52 Ni ground state. We have observed three γ-rays at 849, 1910, and 5185 keV characterizing the β deexcitation of the isomer. We have measured a half-life of 102(6) ms for the isomeric state. The Fermi and Gamow-Teller transition strengths for the β decay of 52m Co to 52 Fe have been determined. We also add new information on the β decay of the 6 + , 52 Co ground state, for which we have measured a half-life of 112(3) ms.

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Section: Half-life Of Thesupporting

confidence: 77%

Observation of the 2+ isomer in Co52

et al. 2016

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“…More detailed spectroscopy is carried out with a t=5 truncation. The results of the full pf -shell calculation for 52 Fe have been already published in [5]. The experimental values are taken from ref.…”

Section: The Isobars A=52mentioning

confidence: 99%

Shell model study of the isobaric chains A=50, A=51 and A=52

Poves

Sánchez-Solano

Caurier³

et al. 2001

Nuclear Physics A

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425

376

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Shell model calculations in the full pf -shell are carried out for the A=50, 51 and 52 isobars. The most frequently used effective interactions for the pf -shell, KB3 and FPD6 are revisited and their behaviour at the N=28 and Z=28 closures examined. Cures to their -relatively minor-defaults are proposed, and a new mass dependent version called KB3G is released. Energy spectra, electromagnetic transitions and moments as well as beta decay properties are computed and compared with the experiment and with the results of the earlier interactions. A high quality description is achieved. Other miscellaneous topics are addressed; the Coulomb energy differences of the yrast states of the mirror pair 51 Mn-51 Fe and the systematics of the magnetic moments of the N=28 isotones.

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“…Hence the IAS in 52 Co should also be spherical according to the isospin symmetry. On the other hand, the rotation-like bands have been observed in 50,51,52 Fe [51,52,53] indicating that the ground states of these isotopes are slightly deformed. Thus, the proton emission from the spherical T = 2 IAS in 52 Co to the T = 1/2 deformed states in 51 Fe are hindered not only by the isospin selection rules but also by the shape changes between the final and initial nuclear states, causing the proton emission from IAS to be less likely.…”

Section: Pos(inpc2016)025mentioning

confidence: 99%

Masses of 52Co And their Impact On The Understanding Of Beta-decay Of 52Ni

Zhang¹

2017

Proceedings of the 26th International Nuclear Physics Conference — PoS(INPC2016)

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Mass excesses of 52 Co and its (2 + ) isomer are measured to be −34361(8) keV and −33974(10) keV using isochronous mass spectrometry at CSRe. Referring to the β -delayed γ emissions of 52 Ni, we identified a new excited state in 52 Co and assigned it as the T = 2, J π = 0 + isobaric analog state (IAS) of 52 Ni. This state is 135(17) keV less bound than that suggested previously based on the β -delayed protons of 52 Ni. We find that the mass of this IAS together with those of the IAS ′ s in 52 Fe, 52 Mn, and 52 Cr fit well into the Isobaric Multiplet Mass Equation.An interesting finding from this measurement is that the IAS in 52 Co decays dominantly via γ transitions while proton emission is almost negligible. This phenomenon could be due to very low isospin mixing according to the large-scale shell model calculations.

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Excited states in52Feand the origin of the yrast trap atIπ=

Cited by 47 publications

References 35 publications

Observation of the 2+ isomer in Co52

Observation of the 2+ isomer in Co52

Shell model study of the isobaric chains A=50, A=51 and A=52

Masses of 52Co And their Impact On The Understanding Of Beta-decay Of 52Ni

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