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Spin ∼ 60 ℏ in 156Dy : Competition between collective and terminating structures at very high-spin

The highest-spin discrete states (I ∼ 60 ℏ and Ex ∼ 30 MeV) in normal deformed nuclei have been observed in the rare-earth isotope 156Dy using the 124Sn(36S,4n) reaction in conjunction with the GAMMASPHERE spectrometer. The positive parity yrast sequence appears to evolve smoothly from a prolate (collective) towards an oblate (non-collective) shape, in contrast to the sudden shape change observed

Triaxial superdeformed bands in 86Zr

Four new superdeformed bands have been found in the nucleus 86Zr. The good agreement between experiment and configuration-dependent shell correction calculations suggests that three of the bands have triaxial superdeformed shapes. Such unique features in mass A ∼ 80 superdeformed bands have been predicted, but not observed experimentally until now. A fourth band in 86Zr is interesting due to a fai

High-spin states, particle-hole structure, and linked smooth terminating bands in doubly odd [Formula Presented]

Excited states in [Formula Presented] have been observed with the Stony Brook array of six Compton-suppressed HPGe detectors and the [Formula Presented] reaction at 60 MeV using a thick target. New excited states which decay solely towards the [Formula Presented] ns, [Formula Presented] isomer have been identified using time-correlated spectroscopy. The previously known level scheme has also been

Band structures and proton-neutron interactions in 174Ta

Six rotational bands in the odd-odd nucleus 174Ta have been populated with the 160Gd(19F,5n) reaction. High-spin states were identified using the NORDBALL array. Both signatures of the doubly decoupled π1/2- [541 ] ⊗ v1/2- [521] band and semi-decoupled π1/2- [541] ⊗ v7/2+ [633] band are observed, in addition to the high-K couplings of the π9/2- [514] ⊗ v7/2+ [633], π9/2- [514] ⊗ v5/2- [512], π7/2+

Collaboration for the Bioeconomy : Evidence from Innovation Output in Sweden, 1970–2021

Collaboration is expected to play a central role in the transition to abioeconomy—a central pillar of a green economy. Such collaboration is supposed to connect traditional biomass processing firms with diverse actors infields where biomass ought to substitute existing or create novel productsand processes. This study analyzes the network of technology collaborationsamong innovating firms in Swede

Foods for Future: Grassroots Innovations and Climate Action in a Scanian Foodscape

The thesis assesses the role of grassroots organisations in climate action through sustainable food practices, focusing on social innovation, collective learning, community-building and local resilience inside the city of Lund, in the Skåne region of southern Sweden. It intends to understand how local groups, combining practical knowledge with community-based innovations, collaborate to build a cu

Terminating high-spin bands in 101Rh

High spin states of 101Rh have been populated using the reaction 70Zn+36S at 130 MeV. γ-rays were detected with the EUROGAM2 array. New high-spin bands have been observed in this nucleus up to 45/2-, 57/2- and 65/2+ states. They have been interpreted using the Nilsson-Strutinsky cranking formalism as terminating configurations. Two of the bands were observed up to the predicted terminating states

High-fold [Formula Presented]-ray spectroscopy of [Formula Presented] : Coexistence of collective and noncollective structures

High-spin states have been populated in [Formula Presented] via the [Formula Presented] reaction at 150 MeV, using the EUROGAM II [Formula Presented]-ray spectrometer to record high-fold [Formula Presented]-ray coincidences. A quadruples [Formula Presented]-ray analysis [Formula Presented] has been used to extend the known level scheme. In addition to several aligned noncollective states, a new hi

Exploring the I = 50-60(Latin small letter h with stroke) domain : Collective and terminating structures in 156Dy, 159Er and 160Er

Very high spin (50-60(Latin small letter h with stroke)) states in transitional 156Dy, 159Er and 160Er nuclei have been studied using the GAMMASPHERE and EUROGAM γ-ray spectrometers. The lowest energy positive-parity bands in 156Dy are found to evolve smoothly towards an oblate shape in contrast to the sudden change observed in the neighbouring 158Er nucleus. In 159Er, the decay path of the positi

New features of collective nuclear rotation at very high frequency in Sb109

Three rotational bands have been discovered in the nucleus Sb109 that extend in angular momentum to 81/2Latin small letter h with stroke. The rotational frequency at the highest spins reaches Latin small letter h with strokeω1.4 MeV, the highest frequency so far observed in a heavy nucleus. With increasing frequency the collective moments of inertia of all three bands smoothly diminish to unexpect

Nuclear ground-state spin of185Au and magnetic moments of 187, 188Au : Further evidence for coexisting nuclear shapes in this mass region

Hyperfine structure measurements have been performed in some neutron-deficient gold isotopes, using on-line atomic-beam magnetic resonance (ABMR) techniques at the ISOLDE facility, CERN. The following results have been obtained: 185Au, I = 5/2; 187Au, Δv = 44.35(60) GHz, μ = 0.72(7) n.m. and 188Au, Δv = ± 2992(30) MHz. A discussion of the influence of the hyperfine anomaly is included. With due re

Band structure in 81Sr

The reactions 78Kr( alpha ,n) and 80Kr( alpha ,3n) were used to populate excited states in 81Sr. The de-excitation of these states was studied by in-beam gamma -ray spectroscopy. A number of new high-spin states forming band structures have been observed. Lifetime measurements have also been performed. Theoretical calculations using a particle-rotor approach based on the Nilsson model have been ma

Smooth band termination in odd mass La nuclei : 127,129,131La

High spin states in 127,129,131La have been investigated using the 100Mo(32S,p4n), E= 160 MeV, 100Mo(34S,p4n), E=155 MeV, and 100Mo(36S,p4n), E=160 MeV reactions, respectively. γ rays were detected using the EUROBALL IV (127,131La) and EUROGAM II (129La) arrays. The results have enabled the negative parity yrast band, built on the πh 11/2 orbital at low spin, and the lowest lying (π, α) = (+, ± 1/

Signature inversion caused by triaxiality and unpaired band crossings in 72Br

High-spin states in 72Br were studied with the EUROBALL III spectrometer using the 40Ca(40Ca,α3p1n) reaction. The negative-parity band observed in this experiment displays a signature inversion around spin I = 16. The interpretation within the cranked Nilsson-Strutinsky approach shows that this signature pattern is a signal of a substantial triaxial shape change with increasing spin where the nucl

Discrete line spectroscopy at the extremes of angular momentum in normal deformed 156Dy and global differential lifetime measurements in the A ∼ 130 highly-deformed region

The highest-spin discrete states (I ∼ 60ℏ and Ex ∼ 30MeV) in normal deformed nuclei have been observed in the rare-earth isotope 156Dy using the GAMMASPHERE spectrometer. The quadrupole moments for a variety of configurations, including the 9/2+[404] (g9/2) proton, 1/2+[660] (i13/2) and 1/2-[541] (f7/2, h9/2) neutron orbitals, were measured in a wide range of ∼ 130 nuclei.

Band terminations in 103Pd

The level scheme of 103Pd has been reconstructed using high-fold γ-ray coincidence data obtained with the EUROGAM-2 spectrometer in the 70Zn(36S,3n) reaction at E = 130 MeV. New spins and excitation energies are given for levels in the strongly coupled positive parity bands. Four high-spin bands are discussed in terms of terminating configurations using Nilsson-Strutinsky cranking calculations. On

The strongly deformed nucleus 100Sr

Two γ-rays of 129.2 and 288.4 keV observed in the β-decay of 55 ms 100Rb are interpreted as representing the two lowest transitions in the 100Sr ground-state rotational band. The energy ratio of the two levels, 3.23, approaches the value for a rigid rotator. The half-life of the 2+ state is 5.15 ± 0.20 ns corresponding to a deformation parameter ε{lunate} of 0.29. The theoretical implications of t

High-spin consequences of octupole shape in nuclei around Th222

The effect of an octupole component in the intrinsic mean field at high spin is demonstrated by a Woods-Saxon-Bogolyubov cranking calculation. The nature of nuclear rotation becomes nearly collective instead of collective plus single-particle, because octupole couplings with l up to 3 "dilute" the high-j shells. Theory is consistent with experimental data on Th222 and could be tested further by st

Learning Traffic Anomalies from Generative Models on Real-Time Observations

Accurate detection of traffic anomalies is crucial for effective urban traffic management and congestion mitigation. We use the Spatiotemporal Generative Adversarial Network (STGAN) framework combining Graph Neural Networks and Long Short-Term Memory networks to capture complex spatial and temporal dependencies in traffic data. We apply STGAN to real-time, minute-by-minute observations from 42 tra