Search Results - "Andreoiu, C."
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1
Summit of the N=40 island of inversion: Precision mass measurements and ab initio calculations of neutron-rich chromium isotopes
Published in Physics letters. B (10-10-2022)“…Mass measurements continue to provide invaluable information for elucidating nuclear structure and scenarios of astrophysical interest. The transition region…”
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First Direct Measurement of an Astrophysical p -Process Reaction Cross Section Using a Radioactive Ion Beam
Published in Physical review letters (10-09-2021)“…We have performed the first direct measurement of the 83Rb(p,γ) radiative capture reaction cross section in inverse kinematics using a radioactive beam of 83Rb…”
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3
New precision mass measurements of neutron-rich calcium and potassium isotopes and three-nucleon forces
Published in Physical review letters (20-07-2012)“…We present precision Penning trap mass measurements of neutron-rich calcium and potassium isotopes in the vicinity of neutron number N=32. Using the TITAN…”
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4
Evidence for pseudospin-chiral quartet bands in the presence of octupole correlations
Published in Physics letters. B (10-08-2020)“…Three nearly degenerate pairs of doublet bands are identified in 131Ba. Two of them, with positive-parity, are interpreted as pseudospin-chiral quartet bands…”
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5
First observation of excited states in 120La and its impact on the shape evolution in the A ≈ 120 mass region
Published in Physics letters. B (01-08-2024)“…Excited states have been observed for the first time in the very neutron-deficient odd-odd nucleus 57120La63. The observed γ rays have been assigned based on…”
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6
Evidence against the wobbling nature of low-spin bands in 135Pr
Published in Physics letters. B (2022)“…The electromagnetic character of the ΔI=1 transitions connecting the 1- to 0-phonon and the 2- to 1-phonon wobbling bands should be dominated by an E2…”
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7
Improved high-precision mass measurements of mid-shell neon isotopes
Published in Nuclear physics. A (01-05-2023)“…New mass values measured with the TITAN MR-TOF-MS are reported for the short-lived isotopes 24−26Ne, produced at TRIUMF's ISAC facility using a uranium carbide…”
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8
In-trap spectroscopy of charge-bred radioactive ions
Published in Physical review letters (22-08-2014)“…In this Letter, we introduce the concept of in-trap nuclear decay spectroscopy of highly charged radioactive ions and describe its successful application as a…”
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9
Evidence of oblate-prolate shape coexistence in the strongly-deformed nucleus 119Cs
Published in Physics letters. B (10-11-2021)“…Prolate-oblate shape coexistence close to the ground state in the strongly-deformed proton-rich A≈120 nuclei is reported for the first time. One of the four…”
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10
Breakdown of the isobaric multiplet mass equation for the A = 20 and 21 multiplets
Published in Physical review letters (22-08-2014)“…Using the Penning trap mass spectrometer TITAN, we performed the first direct mass measurements of (20,21)Mg, isotopes that are the most proton-rich members of…”
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11
Unexpected high-energy γ emission from decaying exotic nuclei
Published in Physics letters. B (10-09-2017)“…The N=52Ga83β decay was studied at ALTO. The radioactive 83Ga beam was produced through the ISOL photofission technique and collected on a movable tape for the…”
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12
Search for Nova Presolar Grains: γ -Ray Spectroscopy of 34Ar and its Relevance for the Astrophysical 33Cl (p , γ) Reaction
Published in Physical review letters (26-06-2020)“…The discovery of presolar grains in primitive meteorites has initiated a new era of research in the study of stellar nucleosynthesis. However, the accurate…”
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13
High-precision half-life determination of $$^{14}$$O via direct $$\beta $$ counting
Published in The European physical journal. A, Hadrons and nuclei (01-05-2022)“…Not provided…”
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14
Multiple chiral bands in $$^{137}$$Nd
Published in The European physical journal. A, Hadrons and nuclei (18-08-2020)“…Two new bands have been identified in 137Nd from a high-statistics JUROGAM II gamma-ray spectroscopy experiment. Constrained density functional theory and…”
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15
Candidate revolving chiral doublet bands in 119Cs
Published in The European physical journal. A, Hadrons and nuclei (2022)“…Two rotational bands are identified in 119 Cs, one of which having very similar pattern to that of the strongly-coupled π g 9 / 2 [ 404 ] 9 / 2 + band. The…”
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16
The TITAN in-trap decay spectroscopy facility at TRIUMF
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-04-2015)“…This paper presents an upgraded in-trap decay spectroscopy apparatus which has been developed and constructed for use with TRIUMF׳s Ion Trap for Atomic and…”
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17
Multiple chiral bands in 137Nd
Published in The European physical journal. A, Hadrons and nuclei (2020)“…Two new bands have been identified in 137 Nd from a high-statistics JUROGAM II gamma-ray spectroscopy experiment. Constrained density functional theory and…”
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18
Diversity of shapes and rotations in the γ-soft 130Ba nucleus: First observation of a t-band in the A = 130 mass region
Published in Physics letters. B (01-08-2019)“…Several new bands have been identified in 130Ba, among which there is one with band-head spin 8+. Its properties are in agreement with the Fermi-aligned…”
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19
Shape coexistence and mixing of low-lying 0+ states in 96Sr
Published in Physics letters. B (01-11-2018)“…The low energy excited 02,3+ states in 96Sr are amongst the most prominent examples of shape coexistence across the nuclear landscape. In this work, the…”
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20
Precision measurement of the electromagnetic dipole strengths in Be11
Published in Physics letters. B (01-05-2014)“…The electromagnetic dipole strength in Be11 between the bound states has been measured using low-energy projectile Coulomb excitation at bombarding energies of…”
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