Atomic tests of unification theories. Although the standard model of particle physics has withstood decades of intensive experimental tests, it is widely believed to be merely a low-energy manifestation of a "true" theory that unifies the four forces of nature. While some searches for new physics beyond the standard model are performed at high-energy particle accelerators, a very sensitive probe can be done at low energies in atomic and molecular measurements of weak interaction effects. This pr ....Atomic tests of unification theories. Although the standard model of particle physics has withstood decades of intensive experimental tests, it is widely believed to be merely a low-energy manifestation of a "true" theory that unifies the four forces of nature. While some searches for new physics beyond the standard model are performed at high-energy particle accelerators, a very sensitive probe can be done at low energies in atomic and molecular measurements of weak interaction effects. This project is devoted to a theoretical investigation of weak interaction effects in atoms, molecules, and nuclei. It will provide improved tests of unified theories.Read moreRead less
Atomic clocks, space-time variation of fundamental constants, violation of fundamental symmetries and tests of unification theories. The project will help to establish Australia among the leaders in important areas of modern science: tests of theories unifying all physical forces and cosmology, search for variation of the fundamental forces of Nature and making super precise atomic clocks. The atomic clocks are used in all navigation (current GPS and future Galileo) systems and many other import ....Atomic clocks, space-time variation of fundamental constants, violation of fundamental symmetries and tests of unification theories. The project will help to establish Australia among the leaders in important areas of modern science: tests of theories unifying all physical forces and cosmology, search for variation of the fundamental forces of Nature and making super precise atomic clocks. The atomic clocks are used in all navigation (current GPS and future Galileo) systems and many other important applications. The training of students and researchers combined with a rich international collaborative program will insure that Australia is well placed to prepare for the approaching revolution in physics and cosmology.Read moreRead less
Violation of fundamental symmetries and test of unification models. This project is devoted to a theoretical investigation of the atomic and nuclear effects of parity and time invariance violation. Measurements of these effects provide accurate tests of unification theories of elementary particles. Effects of weak interactions are normally very small, and we want to look for possibilities to enhance these effects. We also plan to search for new effects and tests of the unification theories an ....Violation of fundamental symmetries and test of unification models. This project is devoted to a theoretical investigation of the atomic and nuclear effects of parity and time invariance violation. Measurements of these effects provide accurate tests of unification theories of elementary particles. Effects of weak interactions are normally very small, and we want to look for possibilities to enhance these effects. We also plan to search for new effects and tests of the unification theories and develop accurate method of atomic calculations.Read moreRead less
Test of unification theories in atomic and nuclear phenomena. This project will help to establish Australia among the leaders in important areas of modern science: tests of models unifying all physical forces and search for variation of fundamental constants of Nature. It may help to create new theory unifying physics and cosmology, and may reveal hypothetical extra dimensions in our Universe, or many different sub-Universes. The training of students and researchers combined with a rich interna ....Test of unification theories in atomic and nuclear phenomena. This project will help to establish Australia among the leaders in important areas of modern science: tests of models unifying all physical forces and search for variation of fundamental constants of Nature. It may help to create new theory unifying physics and cosmology, and may reveal hypothetical extra dimensions in our Universe, or many different sub-Universes. The training of students and researchers combined with a rich international collaborative program will ensure that Australia is well-placed to prepare for the approaching revolution in physics and cosmology. Read moreRead less
Magnetic moments of radioactive beams - an incisive probe of novel structures in neutron-rich nuclei. This project gives Australian scientists, whose expertise underpins recent ground-breaking success, the opportunity for continued leadership in research with international large-scale radioactive beam facilities - a scientific frontier of high technical and intellectual standing. In the process of studying the fundamental goal of nuclear physics, to reach a unified understanding of all nuclei, i ....Magnetic moments of radioactive beams - an incisive probe of novel structures in neutron-rich nuclei. This project gives Australian scientists, whose expertise underpins recent ground-breaking success, the opportunity for continued leadership in research with international large-scale radioactive beam facilities - a scientific frontier of high technical and intellectual standing. In the process of studying the fundamental goal of nuclear physics, to reach a unified understanding of all nuclei, it will develop the basic science needed for future applications of exotic isotopes, e.g. in materials science and medicine. Including experiments in Australia and abroad, it offers an exceptional breadth of training to address the shortage of nuclear expertise needed by the health sector, industry, government, and for national security.Read moreRead less
CCC method: new applications to electron scattering from atoms and molecules. Achievement of the stated aims will be of enormous benefit to industry
and laboratory research because at the present time no reliably accurate
models exist for the range of the required scattering parameters. The
modelling work will result in development of new software packages for
supercomputers and will provide training for research associates, PhD
and Honours students in an area where Australian theorists are ....CCC method: new applications to electron scattering from atoms and molecules. Achievement of the stated aims will be of enormous benefit to industry
and laboratory research because at the present time no reliably accurate
models exist for the range of the required scattering parameters. The
modelling work will result in development of new software packages for
supercomputers and will provide training for research associates, PhD
and Honours students in an area where Australian theorists are
preeminent.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0238631
Funder
Australian Research Council
Funding Amount
$200,000.00
Summary
Ultra High Resolution Electron Recycling Spectrometer. Electron collisions with atoms and molecules provide enormous versatility through the transfer of large amounts of angular momentum and the ability to excite dipole forbidden states. However a lack of energy resolution severely restricts the processes that can be studied.
We propose to construct a unique, ultra-high resolution, electron recycling spectrometer using a radical new design. State-of-the-art spectroscopic studies of ato ....Ultra High Resolution Electron Recycling Spectrometer. Electron collisions with atoms and molecules provide enormous versatility through the transfer of large amounts of angular momentum and the ability to excite dipole forbidden states. However a lack of energy resolution severely restricts the processes that can be studied.
We propose to construct a unique, ultra-high resolution, electron recycling spectrometer using a radical new design. State-of-the-art spectroscopic studies of atoms and molecules will be enabled, including the dynamics of near-threshold processes, the formation of transient states and the examination of processes such as rotational excitation and dissociative attachment in molecules - important in a number of gas-discharge based devices.
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Investigating Near-Threshold Atomic and Molecular Collision Processes with Multiparameter Detection Techniques. We are proposing to perform state-of-the-art, electron impact excitation and ionization measurements on a range of atoms and molecules. The combination of new detector technology and innovative experimental design will enable measurements of near-threshold excitation and ionization in a number of important atomic and molecular systems. The measurements will have implications for the ....Investigating Near-Threshold Atomic and Molecular Collision Processes with Multiparameter Detection Techniques. We are proposing to perform state-of-the-art, electron impact excitation and ionization measurements on a range of atoms and molecules. The combination of new detector technology and innovative experimental design will enable measurements of near-threshold excitation and ionization in a number of important atomic and molecular systems. The measurements will have implications for the further development of atomic scattering theory, particularly the role of electron-electron correlations, and provide much needed absolute scattering information on the excitation of molecules which are of relevance to our atmosphere and various technological devices.Read moreRead less
A complete computational approach to electron-atom collisions. Our research contributes to multidisciplinary efforts to improve the efficiency and reduce the toxicity of lighting systems, which has far-reaching implications for environmental sustainability. It will also facilitate significant improvements in the accuracy of astrophysical and artificial plasma modelling, as well as providing insight into many processes fundamental to nanotechnology research. The research project will further enha ....A complete computational approach to electron-atom collisions. Our research contributes to multidisciplinary efforts to improve the efficiency and reduce the toxicity of lighting systems, which has far-reaching implications for environmental sustainability. It will also facilitate significant improvements in the accuracy of astrophysical and artificial plasma modelling, as well as providing insight into many processes fundamental to nanotechnology research. The research project will further enhance our reputation in an area where Australian theorists are preeminent, and the research training will produce PhD graduates with a high-level ability in numerical modelling using supercomputers. Such skills are essential in many defense, mining and technological applications of national priority.Read moreRead less
Novel collision experiments with metastable neon atoms in an atom trap. The aim of this project is to investigate collisions involving atoms in long lived excited states (metastable states). The project will utilise a magneto-optical trap to investigate electron-atom collisions as well as interatomic collisions for ultra-cold atoms. The outcomes of such investigations extend scientific knowledge of these important processes as a well as provide data for testing fundamental scattering theories. T ....Novel collision experiments with metastable neon atoms in an atom trap. The aim of this project is to investigate collisions involving atoms in long lived excited states (metastable states). The project will utilise a magneto-optical trap to investigate electron-atom collisions as well as interatomic collisions for ultra-cold atoms. The outcomes of such investigations extend scientific knowledge of these important processes as a well as provide data for testing fundamental scattering theories. This scientific knowledge may lead to further technological advances such as more efficient light sources or a metastable-atom laser that could be used for the production of nano-scale electric circuits.Read moreRead less