Cosmological vacuum stability as a window on fundamental physics. Vacuum is not just the absence of matter: it is the lowest-energy state of our Universe. This project aims to investigate the existence of new particles via their impacts upon the vacuum of the Universe. It expects to develop methods required to extract information on the existence of new particles from the vacuum, using transitions between different vacua, resulting gravitational waves, and results from a broad range of other co ....Cosmological vacuum stability as a window on fundamental physics. Vacuum is not just the absence of matter: it is the lowest-energy state of our Universe. This project aims to investigate the existence of new particles via their impacts upon the vacuum of the Universe. It expects to develop methods required to extract information on the existence of new particles from the vacuum, using transitions between different vacua, resulting gravitational waves, and results from a broad range of other complementary experiments. Expected outcomes include comprehensive tests of four of the most compelling theoretical frameworks for new particles. Significant expected benefits include advanced training for Australian students in numerical methods, software development, statistical analysis and research computing.Read moreRead less
New Techniques for New Physics Searches at the CERN Large Hadron Collider. This project aims to break new ground in the quest to discover the existence of new fundamental constituents of nature. In order to achieve this, the team will invent and deploy a suite of advanced machine learning and anomaly detection techniques, developed by the chief investigators, to mine the data processed and collected with the ATLAS experiment at the CERN Large Hadron Collider throughout the entirety of the next d ....New Techniques for New Physics Searches at the CERN Large Hadron Collider. This project aims to break new ground in the quest to discover the existence of new fundamental constituents of nature. In order to achieve this, the team will invent and deploy a suite of advanced machine learning and anomaly detection techniques, developed by the chief investigators, to mine the data processed and collected with the ATLAS experiment at the CERN Large Hadron Collider throughout the entirety of the next data taking run. Expected outcomes of this project include the first application of revolutionary anomaly detection methods to fundamental physics, probing unexplored space in the process, and enhancing the capacity and development of future leaders in Australian science and technology at the forefront of data analytics.Read moreRead less
Detecting cosmic rays using precision radio imaging. This project's aim is to identify the source of the highest-energy particles in nature, cosmic rays, and discover new physical processes at energies unreachable by the Large Hadron Collider.
It will do this by using the Murchison Widefield Array radio telescope to detect the sub-microsecond pulses from cosmic ray interactions in the Earth's atmosphere. The project's intended outcome is a sample of thousands of cosmic ray events, and a new tec ....Detecting cosmic rays using precision radio imaging. This project's aim is to identify the source of the highest-energy particles in nature, cosmic rays, and discover new physical processes at energies unreachable by the Large Hadron Collider.
It will do this by using the Murchison Widefield Array radio telescope to detect the sub-microsecond pulses from cosmic ray interactions in the Earth's atmosphere. The project's intended outcome is a sample of thousands of cosmic ray events, and a new technique to analyse the structure within them.
The anticipated benefits are the establishment of the Murchison Widefield Array as a world-leading instrument for astroparticle physics, new knowledge of high-energy astro and particle physics, and advances and training in fast signal processing methods.Read moreRead less
Tackling the computational bottleneck in precision particle physics. This project aims to deliver a breakthrough technique in theoretical-computational particle physics, with significant potential for high-precision applications. The project targets some of the most advanced and resource-intensive calculations in particle physics, which are widely used but currently limited by extremely high computational resource requirements. This project expects to develop a novel approach that will vastly re ....Tackling the computational bottleneck in precision particle physics. This project aims to deliver a breakthrough technique in theoretical-computational particle physics, with significant potential for high-precision applications. The project targets some of the most advanced and resource-intensive calculations in particle physics, which are widely used but currently limited by extremely high computational resource requirements. This project expects to develop a novel approach that will vastly reduce the computational complexity while at the same time improving their accuracy relative to the current global state of the art. Expected outcomes include the new methodology itself as well as a full-fledged and open-access simulation code based on it, which should be highly efficient.Read moreRead less
Probing for physics beyond the Standard Model in Lepton Flavour Violation. The Standard Model of Particle Physics describes the fundamental particles of which matter in the Universe is composed, and the interactions which bind these particles. It is one of the most precisely measured and validated theories which science has produced, and there has as yet been no measurement of fundamental particle interactions which is in conflict with its predictions. This project involving a large internation ....Probing for physics beyond the Standard Model in Lepton Flavour Violation. The Standard Model of Particle Physics describes the fundamental particles of which matter in the Universe is composed, and the interactions which bind these particles. It is one of the most precisely measured and validated theories which science has produced, and there has as yet been no measurement of fundamental particle interactions which is in conflict with its predictions. This project involving a large international team and highly sophisticated technology will search for evidence of physics beyond the Standard Model by looking for conversion of muons to electrons a reaction which the model prohibits. Observation of this process would be evidence of new particles and interactions, and would revolutionise our understanding of nature.Read moreRead less
Electroweak phase transition: A cosmological window to new particle physics. The observed asymmetry between matter and antimatter in the visible universe arguably represents the major challenge to contemporary particle physics and cosmology. This project explores new theoretical, phenomenological and computational aspects of the electroweak phase transition and the generation of the cosmic matter-antimatter asymmetry in the early universe together with their links to new physics that may manifes ....Electroweak phase transition: A cosmological window to new particle physics. The observed asymmetry between matter and antimatter in the visible universe arguably represents the major challenge to contemporary particle physics and cosmology. This project explores new theoretical, phenomenological and computational aspects of the electroweak phase transition and the generation of the cosmic matter-antimatter asymmetry in the early universe together with their links to new physics that may manifest at present and future high-energy colliders and gravitational wave observatories. Read moreRead less
Violation of fundamental symmetries in atomic phenomena. Violation of the fundamental symmetries is predicted by unification theories of elementary particles. The aim of this project is to propose new enhanced effects of parity, time reversal and Lorentz invariance violations and perform their calculations needed to test unification theories in atomic and nuclear phenomena. By-products of this project include development of high precision computer codes for atomic calculations and theory of pro ....Violation of fundamental symmetries in atomic phenomena. Violation of the fundamental symmetries is predicted by unification theories of elementary particles. The aim of this project is to propose new enhanced effects of parity, time reversal and Lorentz invariance violations and perform their calculations needed to test unification theories in atomic and nuclear phenomena. By-products of this project include development of high precision computer codes for atomic calculations and theory of processes involving atoms and nuclei in chaotic excited states. These codes and theory are expected to have numerous applications (e.g. search for Dark Matter and atomic spectra of superheavy elements, atomic clocks and electron and photon processes).
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Measuring critical background in the Australian search for dark matter. This project aims to develop ultra-sensitive detector technology essential for SABRE, a world-wide experiment with detectors in both the Northern and Southern Hemispheres which are operated together to directly detect the dark matter halo of our Milky Way galaxy. Dark matter makes up nearly five times more mass in the universe than everything we can see, yet it has never been detected in the laboratory. SABRE South will be i ....Measuring critical background in the Australian search for dark matter. This project aims to develop ultra-sensitive detector technology essential for SABRE, a world-wide experiment with detectors in both the Northern and Southern Hemispheres which are operated together to directly detect the dark matter halo of our Milky Way galaxy. Dark matter makes up nearly five times more mass in the universe than everything we can see, yet it has never been detected in the laboratory. SABRE South will be installed in the Stawell Underground Physics Laboratory in a goldmine in Victoria, Australia. Dark matter is not the only thing SABRE can detect. The project will measure all possible types of naturally occurring radiation, from space, the surrounding rock, and the detectors themselves, that can blind SABRE to dark matter.Read moreRead less
New Physics and the quark/lepton family replication puzzle. This project aims to investigate how new physics impacts on the puzzling threefold replication of the elementary particles known as quarks and leptons; these particles provide the foundations for the structure of atoms. This theory project seeks to do so in the context of a concentrated worldwide experimental program whose objective is to produce hugely more information about the mysterious replication. Expected outcomes include the con ....New Physics and the quark/lepton family replication puzzle. This project aims to investigate how new physics impacts on the puzzling threefold replication of the elementary particles known as quarks and leptons; these particles provide the foundations for the structure of atoms. This theory project seeks to do so in the context of a concentrated worldwide experimental program whose objective is to produce hugely more information about the mysterious replication. Expected outcomes include the construction of new theories that deepen our understanding of elementary particles and their interactions. This should provide significant benefits to intellectual culture and the training of early-career researchers as flexible problem solvers able to innovate in any context in industry or government service.Read moreRead less
Search for physics beyond the Standard Model in penguin decays. In the decays of subatomic particles, there is an increasing number of discrepancies between the theoretical expectations and the measurements. This project aims to confirm or refute the interpretation of these results as arising from phenomena not described by the Standard Model of Particle Physics. The project expects to generate new knowledge to clarify this question by making an innovative set of measurements that are designed t ....Search for physics beyond the Standard Model in penguin decays. In the decays of subatomic particles, there is an increasing number of discrepancies between the theoretical expectations and the measurements. This project aims to confirm or refute the interpretation of these results as arising from phenomena not described by the Standard Model of Particle Physics. The project expects to generate new knowledge to clarify this question by making an innovative set of measurements that are designed to minimise existing theoretical uncertainty. The expected outcomes are a deeper understanding of how the Universe works and an enhanced capability to collaborate internationally in Particle Physics. Significant benefits will be provided in terms of training in advanced computational methods.Read moreRead less