A5006729292- Nuclear physics research studies
- Atomic and Molecular Physics
- Nuclear Physics and Applications
- Advanced Chemical Physics Studies
- Quantum Chromodynamics and Particle Interactions
- Astronomical and nuclear sciences
- X-ray Spectroscopy and Fluorescence Analysis
- Advanced NMR Techniques and Applications
- Dark Matter and Cosmic Phenomena
- Quantum, superfluid, helium dynamics
- Atomic and Subatomic Physics Research
- Particle accelerators and beam dynamics
- Particle physics theoretical and experimental studies
- Rare-earth and actinide compounds
- Nuclear reactor physics and engineering
- Electron and X-Ray Spectroscopy Techniques
- Superconducting Materials and Applications
- Radiopharmaceutical Chemistry and Applications
- Radioactive Decay and Measurement Techniques
- Radiation Detection and Scintillator Technologies
- Particle Detector Development and Performance
- Mass Spectrometry Techniques and Applications
- Ion-surface interactions and analysis
- Scientific Research and Discoveries
- Radiation Therapy and Dosimetry
Australian National University
2016-2025
ARC Centre of Excellence for Dark Matter Particle Physics
2022-2024
Istituto Nazionale di Fisica Nucleare, Sezione di Roma I
2019
Panjab University
2006
National Superconducting Cyclotron Laboratory
2003-2005
Michigan State University
2002-2005
University of Surrey
1991
The University of Melbourne
1979-1987
Rutgers, The State University of New Jersey
1981
Flex (United States)
1978
Yrast bands in 176Pt(N=98) and 178Pt have been identified. The level scheme of 176Pt changes from a quasi-vibrational pattern to that well deformed rotor, at very low spins, behaviour similar attributed shape coexistence the light Hg isotopes. Analysis 176-188Pt yrast supports interpretation, excitation energy intruder state behaving as predicted by Wood, (1981).
Precise measurements of the lifetimes first excited 2+ states in stable even-A Sn isotopes 112–124Sn have been performed using Doppler shift attenuation technique. For 112Sn, 114Sn and 116Sn E2 transition strengths deduced from measured are disagreement with previously reported values indicate a shallow minimum at N=66. The observed deviation maximum mid-shell is attributed to obstructive effect s1/2 neutron orbital generating collectivity when near Fermi level.
Excited-state spectroscopy from the first Facility for Rare Isotope Beams (FRIB) experiment is reported. A 24(2)-$\mu$s isomer was observed with FRIB Decay Station initiator (FDSi) through a cascade of 224- and 401-keV $\gamma$ rays in coincidence $^{32}\textrm{Na}$ nuclei. This only known microsecond ($1{\text{ }\mu\text{s}}\leq T_{1/2} < 1\text{ ms}$) region. nucleus at heart $N=20$ island shape inversion crossroads spherical shell-model, deformed ab initio theories. It can be represented...
The ${2}_{2}^{+}$ state in ${}^{132}$Te is identified as the one-phonon mixed-symmetry a projectile Coulomb excitation experiment presenting firm example of unstable, neutron-rich nuclei. results shell-model calculations based on low-momentum interaction ${V}_{\mathrm{low}\ensuremath{-}k}$ are good agreement with demonstrating ability effective to produce states character.
A complete set of electromagnetic moments, $B(E2;{0}_{1}^{+}\ensuremath{\rightarrow}{2}_{1}^{+}),\phantom{\rule{0.16em}{0ex}}Q({2}_{1}^{+})$, and $g({2}_{1}^{+})$, have been measured from Coulomb excitation semimagic $^{112,114,116,118,120,122,124}\text{Sn} (Z=50)$ on natural carbon titanium targets. The magnitude the $B(E2)$ values, to a precision $\ensuremath{\sim}4%$, disagree with recent lifetime study [Phys. Lett. B 695, 110 (2011)] that employed Doppler-shift attenuation method. values...
SABRE aims to directly measure the annual modulation of dark matter interaction rate with NaI(Tl) crystals. A compatible standard hypothesis in which our Galaxy is embedded a halo has been measured by DAMA experiment same target material. Other direct detection experiments, using different materials, seem exclude interpretation such simplest scenario WIMP-nucleon elastic scattering. The carry out an independent search sufficient sensitivity confirm or refute claim. concept and goal obtain...
The transient-field technique has been used in both conventional kinematics and inverse to measure the $g$ factors of 2${}_{1}^{+}$ states stable even isotopes Ru, Pd, Cd. statistical precision $g({2}_{1}^{+})$ values significantly improved, allowing a critical comparison with tidal-wave version cranking model recently proposed for transitional nuclei this region.
Single-neutron states in $^{133}\mathrm{Sn}$ and $^{209}\mathrm{Pb}$, which are analogous to single-electron outside of closed atomic shells alkali metals, were populated by the ($^{9}\mathrm{Be}$, $^{8}\mathrm{Be}$) one-neutron transfer reaction inverse kinematics using particle-$\ensuremath{\gamma}$ coincidence spectroscopy. In addition, ${s}_{1/2}$ single-neutron hole-state candidate $^{131}\mathrm{Sn}$ was $^{10}\mathrm{Be}$). Doubly closed-shell $^{132}\mathrm{Sn}$ (radioactive)...
The cascading 3.21 and 4.44 MeV electric quadrupole transitions have been observed from the Hoyle state at 7.65 excitation energy in ^{12}C, excited by ^{12}C(p,p^{'}) reaction 10.7 proton energy. From proton-γ-γ triple coincidence data, a value of Γ_{rad}/Γ=6.2(6)×10^{-4} was obtained for radiative branching ratio. Using our results, together with Γ_{π}^{E0}/Γ Eriksen et al. [Phys. Rev. C 102, 024320 (2020)PRVCAN2469-998510.1103/PhysRevC.102.024320] currently adopted Γ_{π}(E0) values, width...
Ultra-pure NaI(Tl) crystals are the key element for a model-independent verification of long standing DAMA result and powerful means to search annual modulation signature dark matter interactions. The SABRE collaboration has been developing cutting-edge techniques reduction intrinsic backgrounds over several years. In this paper we report first characterization 3.4 kg crystal, named NaI-33, performed in an underground passive shielding setup at LNGS. NaI-33 record low $^{39}$K contamination...
The g factors of ${2}_{1}^{+},$ ${4}_{1}^{+},$ and ${2}_{2}^{+}$ states in the stable ${}^{130,132,134,136}\mathrm{Xe}$ isotopes have been measured via projectile Coulomb excitation inverse kinematics combination with transient field technique. results show a steady decrease ${g(2}_{1}^{+})$ as number neutron holes increases lighter nuclei below closed $N=82$ shell. ${4}_{1}^{+}$ ${}^{132,134}\mathrm{Xe}$ are consistently larger than ${2}_{1}^{+}$ states, characteristic proton excitation....
This paper presents a new version of the 3D mesa Bridge microdosimeter comprised an array 4248 silicon cells fabricated on 10 μm thick n-type silicon-on-insulator substrate. has been designed to overcome limitations existing in previous generation microdosimeters and it provides well-defined sensitive volumes high spatial resolution. The charge collection characteristics were investigated using ANSTO heavy ion microprobe, utilizing 5.5 MeV He <sup...
Any discovery of “new physics” in the neutrino sector will first require a precise baseline prediction expected Standard Model cross section. While coherent elastic neutrino-nucleus scattering (CEvNS) experiments are currently statistics limited, upcoming and future at larger scales be systematics limited. At this point it necessary to improve theoretical predictions experimental sensitivity. Here we review calculation CEvNS section consistent theory hadronic currents compute relevant...
Abstract In this technical design report (TDR) executive summary we describe the SABRE South detector to be built at Stawell Underground Physics Laboratory (SUPL). The is designed test long-standing DAMA/LIBRA signal of an annually modulating rate consistent with dark matter by using same target material. Located in Southern Hemisphere, uniquely positioned disentangle seasonal effects. uses seven ultra-high purity NaI(Tl) crystals (with a total mass either 35 kg or 50 kg), hermetically...