Lifetime determination in 
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 via 
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 fast-timing spectros

Esmaylzadeh, A.; Gerhard, L.; Karayonchev, V.; Régis, J.-M.; Jolie, J.; Bast, M.; Blazhev, A.; Braunroth, T.; Dannhoff, M.; Dunkel, F.; Fransen, C.; Häfner, G.; Knafla, L.; Ley, M.; Müller-Gatermann, C.; Schomacker, K.; Warr, N.; Zell, K. O.

doi:10.1103/physrevc.98.014313

Cited by 26 publications

(26 citation statements)

References 42 publications

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“…The preliminary, but tempting, trend of an increasing ∆ from 2. 45 Table II with the predictions of the sd IBM-2. The 6 + 1 state has been added to the comparison as well.…”

Section: Discussion Of the Resultsmentioning

confidence: 99%

“…The lifetime results were derived by employing an analytical Compton-background time correction using relative values, as proposed in Refs. [43][44][45]. As a good example for its application, we first present the lifetime measurement of the 0 + 3 , 2027-keV state.…”

Section: Lifetimes Of Excited States Of 116 Snmentioning

confidence: 99%

“…In order to properly remove the time contributions of the Compton background, we used an analytical background time correction, which has been shown to be most reliable [43][44][45]:…”

Section: Lifetimes Of Excited States Of 116 Snmentioning

confidence: 99%

“…This is in agreement with the observations reported in Refs. [43][44][45]. The given experimental uncertainty includes the statistical error and the uncertainties of the time-walk and the background-time corrections.…”

Section: Lifetimes Of Excited States Of 116 Snmentioning

confidence: 99%

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Collectivity of the 2p-2h proton intruder band of Sn116

Petrache¹,

Régis²,

Andreoiu³

et al. 2019

Phys. Rev. C

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The half-life of the 4 + 2 state of the 2p − 2h proton intruder band of 116 Sn has been measured for the first time with the fast-timing technique. The lifetime of T 1/2 = 29(10) ps leads to a transition probability B(E2; 4 + 2 → 2 + 2 ) = 40(13) Weisskopf units, which is in very good agreement with the large B(E2; 2 + 2 → 0 + 3 ) value measured previously and provides strong support for the 0 + 3 state as the band-head of the intruder configuration and for the shape coexistence in the semi-magic 116 Sn nucleus. IBM-2 calculations with mixing reproduce the experimental data very well, giving insight into the degree of mixing between the different states.suggested that they were built on intruding 2p − 2h proton excitations across the Z = 50 closed shell. Subsequent detailed spectroscopy using light-ion reactions and detecting both the γ-ray and conversion electron decays of the low-lying 0 + and 2 + levels, [9][10][11], provided firm evidence, summarized by Julin [12], for the deformed shapes of the intruder bands through the observation of enhanced E0 transitions.

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“…The preliminary, but tempting, trend of an increasing ∆ from 2. 45 Table II with the predictions of the sd IBM-2. The 6 + 1 state has been added to the comparison as well.…”

Section: Discussion Of the Resultsmentioning

confidence: 99%

Section: Lifetimes Of Excited States Of 116 Snmentioning

confidence: 99%

“…In order to properly remove the time contributions of the Compton background, we used an analytical background time correction, which has been shown to be most reliable [43][44][45]:…”

Section: Lifetimes Of Excited States Of 116 Snmentioning

confidence: 99%

Section: Lifetimes Of Excited States Of 116 Snmentioning

confidence: 99%

See 2 more Smart Citations

Collectivity of the 2p-2h proton intruder band of Sn116

Petrache¹,

Régis²,

Andreoiu³

et al. 2019

Phys. Rev. C

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show abstract

“…As the subscript "FEP" indicates, this only holds for events where no time-correlated background is present. An analytical background time correction is used to interpolate the time-correlated background at the energy of interest, which has been shown to be most reliable [2,[28][29][30]:…”

Section: Fast-timing Methodsmentioning

confidence: 99%

Lifetime measurements and shape coexistence in Sr97

et al. 2019

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Delayed γ rays from neutron-rich A = 97 fission fragments were measured using the Lohengrin spectrometer at the high-flux reactor of the Institut Laue-Langevin in Grenoble. Several lifetimes of excited states in 97 Sr were measured using the fast-timing technique. The nucleus 97 Sr exhibits shape coexistence and is located exactly at the border of the spherical (N 58) and deformed (N 60) ground-state deformation. It is of particular interest to study the shape-coexisting structures at the spherical-deformed border (N = 59). The determined lifetimes within this work are compared to an interacting boson-fermion model calculation that is based on the microscopic energy density functional to provide a better understanding of the spherical-deformed border in strontium isotopes.

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Nuclear Data Sheets for A=190

Singh

Chen

2020

Nuclear Data Sheets

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Lifetime determination in Hg190,192,194,196 via γ−γ fast-timing spectros

Cited by 26 publications

References 42 publications

Collectivity of the 2p-2h proton intruder band of Sn116

Collectivity of the 2p-2h proton intruder band of Sn116

Lifetime measurements and shape coexistence in Sr97

Nuclear Data Sheets for A=190

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