Faglige interesser
Jeg forsker på deformasjon i atomkjerner ved hjelp av levetidsmålinger.
Jeg er også interessert i datavisualisering og vitenskapelig skriving.
Undervisning
Bakgrunn
- sommer 2022: CERN Summer Student Programme
- 2022: Master i kjernefysikk (UiO)
- 2020: Bachelor i fysikk (UiO)
Emneord:
kjernefysikk,
kjernestruktur
Publikasjoner
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Pasqualato, G; Ansari, S.; Heines, Johannes Sørby; Modamio, Victor; Görgen, Andreas & Beckmann, Kristine Sønstevold
[Vis alle 52 forfattere av denne artikkelen]
(2023).
Shape evolution in even-mass <sup>98 - 104</sup> Zr isotopes via lifetime measurements using the γγ -coincidence technique.
European Physical Journal A.
ISSN 1434-6001.
59(11).
doi:
10.1140/epja/s10050-023-01172-8.
Vis sammendrag
The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first 2+ state and the increase in
the transition strength B(E2; 2+→ 0+) going from 98Zr to 100Zr has been the first example of “quantum phase transition” in nuclear shapes, which has few equivalents in the nuclear chart. Although a multitude of experiments have been
performed to measure nuclear properties related to nuclear shapes and collectivity in the region, none of the measured lifetimes were obtained using the Recoil Distance Doppler Shift method in the γγ-coincidence mode where a gate on the direct feeding transition of the state of interest allows a strict control of systematical errors. This work reports the results of lifetime measurements for the first yrast excited states in 98−104Zr carried out to extract reduced transition
probabilities. The new lifetime values in γγ-coincidence and γ -single mode are compared with the results of former experiments. Recent predictions of the Interacting Boson Model with Configuration Mixing, the Symmetry Conserving Configuration Mixing model based on theHartree–Fock–Bogoliubov approach and the Monte Carlo Shell Model are presented and compared with the experimental data.
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Se alle arbeider i Cristin
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Heines, Johannes Sørby; Görgen, Andreas; Modamio, Victor; Pasqualato, G; Korten, Wolfram & Ljungvall, Joa
(2023).
Lifetime measurements show high triaxiality in ruthenium.
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Heines, Johannes Sørby; Modamio, Victor & Görgen, Andreas
(2023).
Evolution of Triaxiality in Neutron-Rich Ruthenium Isotopes
Lifetime Measurements of excited states.
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Heines, Johannes Sørby; Görgen, Andreas & Modamio, Victor
(2022).
Triaxiality in neutron-rich Ruthenium isotopes,
New lifetimes measured in Ru-109, 110, 111.
Universitetet i Oslo.
Se alle arbeider i Cristin
Publisert
21. aug. 2023 09:11
- Sist endret
5. feb. 2024 14:40