Triplet energy differences and the low lying structure of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">Ga</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>62</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math>

Henry, T. W.; Bentley, M. A.; Clark, R. M.; Davies, P.; Bader, V. M.; Baugher, T.; Bazin, D.; Beausang, C. W.; Berryman, J. S.; Bruce, A. M.; Campbell, C. M.; Crawford, H. L.; Cromaz, M.; Fallon, P.; Gade, A.; Henderson, J.; Iwasaki, H.; Jenkins, D. G.; Lee, I. Y.; Lemasson, A.; Lenzi, S. M.; Macchiavelli, A. O.; Napoli, D. R.; Nichols, A.; Paschalis, S.; Petri, M.; Recchia, F.; Rissanen, J.; Simpson, E. C.; Stroberg, S. R.; Wadsworth, R.; Weißhaar, D.; Wiens, A.; Walz, C.

doi:10.1103/physrevc.92.024315

Cited by 6 publications

(5 citation statements)

References 50 publications

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“…1. The yrast sequence up to the 17 + state at 9976 keV and the off-yrast part between 2 and 5 MeV excitation energy was reported previously [4][5][6]9,10], the latter in fact more comprehensively. This is readily understood in terms of anticipated entry-state distributions, which are shifted to on average higher excitation energies and larger angular momenta for the present data set.…”

Section: Resultssupporting

confidence: 64%

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Onset of high-spin rotational bands in the N=Z nucleus Ga62

et al. 2020

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The fusion-evaporation reaction 28 Si + 40 Ca at 122 MeV beam energy was used to populate high-spin states in the odd-odd N = Z nucleus 62 Ga. With the combination of the Gammasphere spectrometer and the Microball CsI(Tl) charged-particle detector array the decay scheme of 62 Ga was extended beyond 10 MeV excitation energy. The onset of band structures was observed. These high-spin rotational states are interpreted and classified by means of cranked Nilsson-Strutinsky calculations.

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Section: Resultssupporting

confidence: 64%

“…[1][2][3] and references therein). Triplet energy differences along the mass A = 62 isobars 62 Ge, 62 Ga, and 62 Zn have been studied, most recently by two-nucleon knockout [4]. This study provided evidence for the relevant T = 1, I π = 2 + state at 977 keV in 62 Ga, improving upon the results of Ref.…”

Section: Introductionsupporting

confidence: 66%

Onset of high-spin rotational bands in the N=Z nucleus Ga62

et al. 2020

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“…4(c) two TED values for the 2 + state are shown, where the two possible candidates described above have been used for 62 Ga. We cannot yet distinguish experimentally between these possibilities, so we simply note that one of these (the TED based on the 977 keV state from Ref. [24]) matches well with the calculations, and the other does not. As with other mass regions, the TED calculation provides a good agreement with the data only when the INC interaction is included.…”

Section: Comparison Of Experimental and Theoretical Triplet Energmentioning

confidence: 80%

“…An I = 2 state at 1015 keV, first observed by Rudolph et al [23], has been identified as the T = 12 + state on the basis of its similarity to the energy of the analog states in the other members of the multiplet. However, Henry et al [24] subsequently identified a state at 977 keV which they suggested as an alternative candidate for the T = 12 + state, on the basis of the knockout methodology used in that work. In Fig.…”

Section: Comparison Of Experimental and Theoretical Triplet Energmentioning

confidence: 99%

Isospin-symmetry breaking corrections for the description of triplet energy differences

et al. 2018

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The charge-independence breaking of the nuclear interaction is analyzed by means of energy differences among analog states in T = 1 isobaric multiplets. Data on triplet energy differences in the sd, pf ,a n dpf g shells, i.e., 18 A 66, are reproduced with very good accuracy by large-scale shell-model calculations taking into account, aside from the Coulomb interaction, a single isotensor schematic interaction of monopole-pairing type. It is shown that the effect on the triplet energy differences of this isospin-breaking interaction is of the same magnitude as the Coulomb one. Moreover, its strength is the same for every single-particle orbital of the considered model space.

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“…Naturally, the Coulomb force will break the degeneracy, although the underlying wave functions are expected to retain their isospin symmetry. A significant body of work has built up in recent years examining the difference in excitation energies between mirror pairs and complete T = 1 isobaric triplets -see, for example, references [12,[24][25][26][27][28][29][30][31][32][33][34][35][36][37][38]. These studies, which have involved a shell-model interpretation, have shown that the electromagnetic effects within the shell-model cannot account alone for the energy differences, suggesting that other effective isospin-symmetry-breaking interactions are missing from the models -see [39][40][41][42].…”

Section: Introductionmentioning

confidence: 99%

In-beam $$\gamma $$-ray spectroscopy of $$^{94}$$Ag

et al. 2023

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A recoil-beta-tagging experiment has been performed to study the excited $$T=0$$ T = 0 and $$T=1$$ T = 1 states in the odd–odd $$N=Z$$ N = Z nucleus $$^{94}$$ 94 Ag, populated via the $$^{40}$$ 40 Ca($$^{58}$$ 58 Ni,1p3n)$$^{94}$$ 94 Ag reaction. The experiment was conducted using the MARA recoil separator and JUROGAM3 array at the Accelerator Laboratory of the University of Jyväskylä. Through correlating fast, high-energy beta decays at the MARA focal plane with prompt $$\gamma $$ γ rays emitted at the reaction target, a number of transitions between excited states in $$^{94}$$ 94 Ag have been identified. The timing characteristics of these transitions confirm that they fall within decay sequences that feed the short-lived $$T=1$$ T = 1 ground state of $$^{94}$$ 94 Ag. The transitions are proposed to proceed within and between the sets of states with $$T=0$$ T = 0 and $$T=1$$ T = 1 . Possible correspondence between some of these transitions from analog states in $$^{94}$$ 94 Pd has been discussed, and shell-model calculations including multipole and monopole electromagnetic effects have been presented, in order to enable predictions of the decay patterns between the $$T=0$$ T = 0 and $$T=1$$ T = 1 states and to allow a theoretical set of Coulomb energy differences to be calculated for the $$A = 94$$ A = 94 $$T=1$$ T = 1 analog states.

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Triplet energy differences and the low lying structure ofGa62

Abstract: Background: Triplet energy differences (TED) can be studied to yield information on isospin-non-conserving interactions in nuclei.

Cited by 6 publications

References 50 publications

Onset of high-spin rotational bands in the N=Z nucleus Ga62

Onset of high-spin rotational bands in the N=Z nucleus Ga62

Isospin-symmetry breaking corrections for the description of triplet energy differences

In-beam $$\gamma $$-ray spectroscopy of $$^{94}$$Ag

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