Particle physics is the science which identifies nature's constituents and interactions at the most fundamental level, with an emphasis on comparing theoretical ideas with both terrestrial experiments and astrophysical observations. This mandate gives it a strong overlap with string theory, quantum gravity and cosmology. Particle physicists at Perimeter Institute are currently involved in identifying how cosmological observations and terrestrial accelerator and underground experiments constrain the theoretical possibilities for physics beyond the Standard Model.
Format results
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Gravitational-wave astronomy: progress and prospects
Patrick Brady - University of Wisconsin-Milwaukee
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The future of high mass dark matter
Joseph Bramante - Queen's University
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PN still alive : analytical waveforms to challenge GR
Laura Bernard - Laboratoire Univers et Théories (LUTH)
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Extracting the universe’s expansion history from small-scale structure
Adrienne Erickcek
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Phenomenological consequences of phase transitions occurred during inflation
Haipeng An - Tsinghua University
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Light Fields and Scientific Fellowship: 16 years of interaction with Perimeter
Renée Hložek
The Perimeter Institute has provided me with 16 years of interactions, engagement and stimulating discussion. I'll describe some of my happy times at Perimeter and focus on one research area of interest: ultralight axions as a cosmological component. I'll describe constraints from the cosmic… -
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Ringing Black Holes
Huan Yang - Tsinghua University
In this talk I will discuss one of the frontiers of both theory and data analysis in gravitational wave astronomy - understanding the ringing of black holes and probing them from real data. I will review past efforts started from Chandrasekhar, Detweiler, et al in analyzing modes of black holes and… -
Big Bang Nucleosynthesis as a Probe of New Physics
Tim Tait
I will discuss BBN and a new python-based tool (PRyMordial) which allows one to easily simulate it both in the context of a standard cosmological model as well as in various scenarios of physics beyond the Standard Model. I’ll discuss how BBN provides a unique probe of physics relevant for the ~ MeV… -
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Gravitational-wave astronomy: progress and prospects
Patrick Brady - University of Wisconsin-Milwaukee
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The future of high mass dark matter
Joseph Bramante - Queen's University
A number of theories predict heavy dark matter, including WIMPs and high mass composite states formed in the early universe. Discovering the heaviest dark matter candidates, with a unit mass in excess of a microgram, requires methods beyond traditional underground experiments. For high mass dark… -
Axion-Mediated Dark Matter: Models and Future Experimental Opportunities
Stefania Gori
Dark matter (DM) remains one of the most enduring mysteries in fundamental physics, motivating a wide array of theoretical models and experimental searches. Axions and axion-like particles (ALPs) are theoretically well-motivated, as they naturally arise from theories with broken global symmetries… -
PN still alive : analytical waveforms to challenge GR
Laura Bernard - Laboratoire Univers et Théories (LUTH)
In this talk, I will give an overview of why the PN formalism is still relevant to model gravitational waves, focusing on recent synergies with other techniques and research topics. Taking the example of EFT-inspired higher curvature gravity theories, I will present a way towards building better… -
Extracting the universe’s expansion history from small-scale structure
Adrienne Erickcek
How did the universe evolve prior to the creation of the cosmic microwave background? There are no direct observational probes of the universe’s expansion history prior to the onset of Big Bang nucleosynthesis (BBN), and numerous theories predict deviations from radiation domination during the… -
Phenomenological consequences of phase transitions occurred during inflation
Haipeng An - Tsinghua University
In slow-roll inflationary models, the inflaton can undergo excursions on the order of the Planck scale, leading to significant changes in the properties of fields coupled to the inflaton, referred to as spectator fields. These changes may result in transitions between weakly and strongly interacting…