Transition probabilities in neutron-rich<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Se</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>84</mml:mn><mml:mo>,</mml:mo><mml:mn>86</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>

Litzinger, J.; Blazhev, A.; Dewald, Α.; Didierjean, F.; Duchêne, G.; Fransen, C.; Lozeva, R.; Sieja, K.; Verney, D.; Angelis, G. de; Bazzacco, D.; Birkenbach, B.; Bottoni, S.; Bracco, A.; Braunroth, T.; Cederwall, B.; Corradi, L.; Crespi, F. C. L.; Désesquelles, P.; Eberth, J.; Ellinger, Enrico; Farnea, E.; Fioretto, E.; Gernhäuser, R.; Goasduff, A.; Görgen, A.; Gottardo, A.; Grȩbosz, J.; Hackstein, M.; Hess, H.; Ibrahim, F.; Jolie, J.; Jungclaus, A.; Kolos, K.; Körten, W.; Leoni, S.; Lunardi, S.; Maj, A.; Menegazzo, R.; Mengoni, D.; Michelagnoli, C.; Mijatović, T.; Million, B.; Möller, O.; Modamio, V.; Montagnoli, G.; Montanari, D.; Morales, A. I.; Napoli, D. R.; Nııkura, M.; Pollarolo, G.; Pullia, A.; Quintana, B.; Recchia, F.; Reiter, P.; Rosso, D.; Şahin, E.; Salsac, M. D.; Scarlassara, F.; Söderström, P.-A.; Stefanini, A. M.; Stézowski, O.; Szilner, S.; Theisen, Ch.; Dobón, J. J. Valiente; Vandone, V.; Vogt, A.

doi:10.1103/physrevc.92.064322

Cited by 29 publications

(21 citation statements)

References 33 publications

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“…The lifetime extraction procedure is described in Refs. [12,20]. We measured the ratio R = I U I U +I S (I U and I S are the integral of the unshifted and shifted components of the peak, respectively) for all the distances (when statistics allows).…”

Section: Lifetime Resultsmentioning

confidence: 99%

“…In the Kr isotopic chain, just four and two protons below Zr and Sr, respectively, a rather gradual onset of collectivity towards N = 60 was concluded from mass measurements [6], Coulomb excitation [7], and fast-timing measurements [8], placing the N = 60 isotone 96 Kr at the low-Z boundary of the region of deformation described above [9]. Present information on the Se and Kr chain is limited to excitation energies out to 94 Se [10], the B(E2 ↑) strength of 86,88 Kr and 86 Se from Coulomb excitation [11], and lifetimes of excited states measured for 84,86 Se [12]. The present work extends the investigation of the quadrupole properties of nuclei in this mass region towards the doubly magic Z = 28, N = 50 shell closures.…”

Section: Introductionmentioning

confidence: 99%

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Lifetime Measurements Using RDDS Method in the Vicinity of $^{78}$Ni

Delafosse¹,

Verney²,

Gottardo³

et al. 2019

Acta Phys. Pol. B

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Section: Lifetime Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Lifetime Measurements Using RDDS Method in the Vicinity of $^{78}$Ni

Delafosse¹,

Verney²,

Gottardo³

et al. 2019

Acta Phys. Pol. B

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“…[11], a method to determine lifetimes from RDDS data using summed γ -ray spectra of different target-todegrader distances was introduced. This can be used if statistics are insufficient to determine peak intensities for each distance individually.…”

Section: Experimental Details and Lifetime Analysis Proceduresmentioning

confidence: 99%

“…and have been investigated with great detail both theoretically and experimentally [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. The level schemes of 80,82 Se were investigated and extended recently in multinucleon-transfer and fission experiments [3,9].…”

mentioning

confidence: 99%

Transition probabilities in neutron-rich Se80,82 and the role of the νg9/2
Litzinger¹,
Blazhev²,
Dewald³
et al. 2018
Phys. Rev. C
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“…Lifetimes are deduced from the ratio of intensity of the two components. The degrader was placed at two distances from the target [32]: 38(1) μm and 257(2) μm with a measuring time of 30 and 80 h, respectively.…”

Section: Introductionmentioning

confidence: 99%

Neutron effective single-particle energies above Ni78 : A hint from lifetime measurements in the N=51 isotones

Didierjean¹,

Verney²,

Duchêne³

et al. 2017

Phys. Rev. C

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Background: While the N = 50 shell-gap evolution towards 78 Ni is presently in the focus of nuclear structure research, experimental information on the neutron effective single-particle energy sequence above the 78 Ni core remain scarce. Direct nucleon-exchange reactions are indeed difficult with presently available post-accelerated radioactive-ion beams (especially for high orbital-momentum orbitals) in this exotic region. Purpose: In this study we probe the evolution of the ν1g 7/2 effective single-particle energy which is a key to understanding the possible evolution of the spin-orbit splitting due to the proton-neutron interaction in the 78 Ni region. To achieve this goal, a method based on lifetime measurements is used for the first time. The obtained lifetimes of the 7/2 + 1 states in 87 Kr and 85 Se are used to investigate the ν1g 7/2 evolution. Method: Yrast and near-yrast states in the light N = 51 isotones 85 Se and 87 Kr were populated via multinucleon transfer reactions, using a 82 Se beam and a 238 U target at the LNL tandem-ALPI facility. The prompt γ rays were detected by the AGATA Demonstrator and particle identification was performed using the PRISMA spectrometer. Lifetime measurements were performed by using the Cologne plunger device for deep inelastic reactions and the Recoil Distance Doppler Shift technique. Results: We obtain τ (7/2 + 1 ) = 0.4 +1.6 −0.4 ps for 87 Kr. In the case of 85 Se an upper limit of 3(2) ps is obtained for the τ 7/2 + 1 value. Conclusion: For 87 Kr, the measured (7/2 + 1 ) lifetime is consistent with a core-coupled 2 + ⊗ ν2d 5/2 configuration for this state. This result is consistent with that obtained by direct reaction, which validates our method. For 85 Se, the measured 7/2 + 1 lifetime limit indicates a very small contribution of the ν1g 7/2 configuration to the wave function of this state.

show abstract

Transition probabilities in neutron-richSe84,86

Cited by 29 publications

References 33 publications

Lifetime Measurements Using RDDS Method in the Vicinity of $^{78}$Ni

Lifetime Measurements Using RDDS Method in the Vicinity of $^{78}$Ni

Transition probabilities in neutron-rich Se80,82 and the role of the νg9/2
Litzinger¹,
Blazhev²,
Dewald³
et al. 2018
Phys. Rev. C
Self Cite
5
0
0
0
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Neutron effective single-particle energies above Ni78 : A hint from lifetime measurements in the N=51 isotones

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Transition probabilities in neutron-richSe84,86

Cited by 29 publications

References 33 publications

Lifetime Measurements Using RDDS Method in the Vicinity of $^{78}$Ni

Lifetime Measurements Using RDDS Method in the Vicinity of $^{78}$Ni

Transition probabilities in neutron-rich Se80,82 and the role of the νg9/2Litzinger1, Blazhev2, Dewald3 et al. 2018Phys. Rev. CSelf Cite5000View full textAdd to dashboardCite

Neutron effective single-particle energies above Ni78 : A hint from lifetime measurements in the N=51 isotones

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Transition probabilities in neutron-rich Se80,82 and the role of the νg9/2
Litzinger¹,
Blazhev²,
Dewald³
et al. 2018
Phys. Rev. C
Self Cite
5
0
0
0
View full text Add to dashboard Cite