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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17 talks-Collection Number C18012
Talk
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Charting Fundamental Interactions
Francesco Sannino CP3-Origins
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Asymptotic safety with and without supersymmetry
Daniel Litim University of Sussex
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Progress in constructing an Asymptotically safe Standard Model
Steven Abel Durham University
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Cosmological non-Constant Problem
Niayesh Afshordi University of Waterloo
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UV-complete relativistic field theories and softened gravity
Alberto Salvio Scuola Normale Superiore di Pisa
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Asymptotic safety of gravity-matter systems and effective universality
Manuel Reichert University of Southern Denmark
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Open EFT's and Gravity as a Medium
-Collection Number C18032 -
Searching for New Particles with Black Hole Superradiance
11 talks-Collection Number C18010Talk
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Searching for Light Bosons with Black Hole Superradiance
Savas Dimopoulos Perimeter Institute for Theoretical Physics
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Superradiant instabilities and rotating black holes
Sam Dolan University of Southampton
PIRSA:18050028 -
Superradiant instabilities and rotating black holes
Avery Broderick University of Waterloo
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Measuring Stellar-Mass Black Hole Spins via X-ray Spectroscopy
James Steiner Massachusetts Institute of Technology (MIT)
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Superradiance Beyond the Linear Regime
Frans Pretorius Princeton University
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Characterization of compact objects with present and future ground-based gravitational-wave detectors
Salvatore Vitale Massachusetts Institute of Technology (MIT)
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LIGO and Virgo continuous wave searches - Overview and all-sky searches
keith Riles University of Michigan–Ann Arbor
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Directed and targeted searches for continuous gravitational waves
Sylvia Zhu Albert Einstein Institute
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Experimental techniques in table-top fundamental physics
24 talks-Collection Number C17030Talk
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Welcome and Opening Remarks
Asimina Arvanitaki Perimeter Institute for Theoretical Physics
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Theory Talk
Asimina Arvanitaki Perimeter Institute for Theoretical Physics
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A three-dimensional optical lattice clock: precision at the 19th digit
Edward Marti University of Colorado Boulder
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Measurement of the fine structure constant as a test of the standard model
Holger Mueller University of California, Berkeley
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Superconducting accelerometer technology for precision tests of gravitation and search for new interactions
Ho Jung Paik University of Maryland, College Park
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Searching for axions and new short-range forces with resonant sensors
Andrew Geraci University of Nevada Reno
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Testing Gravity at Extreme Scales
Giorgio Gratta Stanford University
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Precision Physics in Storage Rings
Yannis Semertzidis Institute for Basic Science - Center for Axion and Precision Physics Research
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New Directions in Dark Matter and Neutrino Physics
28 talks-Collection Number C17026Talk
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CRESST Detectors for Dark Matter and Neutrino Physics
Federica Petricca Max Planck Institute
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Getting the Most out of Liquid Xenon
Rafael Lang Columbia University
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Direct detection signals of light dark matter
Josef Pradler Institut für Hochenergiephysik (HEPHY) - Institut für Hochenergie Physik
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Radiative Corrections at the Intensity Frontier of Particle Physics
12 talks-Collection Number C17017Talk
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Experimental Overview of low-energy precision experiments
Doug Bryman TRIUMF (Canada's National Laboratory for Particle and Nuclear Physics)
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Precision calculations for muonic bound states
Andrzej Czarnecki University of Alberta
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SCET for precision physics at high and low energies
Thomas Becher Universität Bern
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Higher-order corrections for neutrino experiments
Kevin Mcfarland University of Rochester
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New physics searches in low-energy experiments
Andre de Gouvea Northwestern University
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Impact of neutrino interaction uncertainties
Kendall Mahn TRIUMF (Canada's National Laboratory for Particle and Nuclear Physics)
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Simulation tools for neutrino experiments
Gabriel Perdue Fermi National Accelerator Laboratory (Fermilab)
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2015 Tri-Institute Summer School on Elementary Particles
46 talks-Collection Number C15032Talk
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The Standard Model – Theory: Electroweak Model
Michael Peskin SLAC National Accelerator Laboratory
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Astroparticle Physics – Theory: WIMP Paradigm
Miriangela Lisanti Princeton University
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The Standard Model – Theory: Parton Model
Michael Peskin SLAC National Accelerator Laboratory
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Astroparticle Physics – Theory: Dark Matter Distribution in MW
Miriangela Lisanti Princeton University
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The Standard Model – Theory: Altarelli-Parisi evolution
Michael Peskin SLAC National Accelerator Laboratory
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Astroparticle Physics – Theory: Direct detection
Miriangela Lisanti Princeton University
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The Standard Model – Theory: Events and processes @ the LHC
Michael Peskin SLAC National Accelerator Laboratory
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Astroparticle Physics – Theory: Indirect detection
Miriangela Lisanti Princeton University
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TRISEP
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Preparing for the High-Luminosity Run of the LHC
-Collection Number C15092 -
Flux Tubes
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Holographic Phase Transitions in the early Universe
Rashmish Mishra Harvard University
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CHIME is secretly an axion experiment - VIRTUAL
Katelin Schutz McGill University
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Asymptotic Safety in a Dark Universe
17 talks-Collection Number C18012The asymptotic safety paradigm is currently emerging as a highly promising idea for Beyond-Standard-Model physics with key progress in asymptotically safe quantum gravity and asymptotically safe matter models. The last years have seen not only the development of asymptotically safe gravity-matter models but also the discovery of asymptotically safe beyond Standard Model matter models that are under control in perturbation theory. New exciting avenues in (astro) particle physics are now waiting to be explored. For example although the nature of dark matter is a long-standing riddle it is a fact that experimental searches have so far not provided any direct clues but have instead come up with ever more stringent constraints on theoretically preferred regions of parameter space for dark-matter-models. Thus the key to unraveling this riddle could be a new theoretical paradigm to guide model builders. This workshop aims at exploring whether asymptotic safety can be a candidate for this new paradigm. We aim to bring together experts on phenomenological models and quantum gravity to probe both the theoretical viability and empirical signatures of asymptotically safe extensions of the standard model that include gravity. To facilitate a highly productive meeting that can trigger new collaborations each talk will be followed up by 15-20 minutes discussion time. Further each day of the workshop will feature a dedicated discussion session. Participants will be encouraged to contribute questions for the discussion both before as well as during the workshop. The last day of the workshop will conclude with a roadmap discussion during which all participants will be given the opportunity to propose concrete suggestions for follow-up work that might lead into future joint projects.
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Open EFT's and Gravity as a Medium
-Collection Number C18032This event is meant to study the connections between quantum fields in curved spacetimes with horizons and the effective field theory methods as applied to open systems (Open EFTs). In particular the hope is to exploit the existence of tools (from areas like optics) for dealing with hierarchies of scale in open systems and adapt the to see if they can inform our understanding of controlling late-time predictions in gravitational environments. Please note that this meeting is by invitation only.
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Searching for New Particles with Black Hole Superradiance
11 talks-Collection Number C18010Black hole superradiance is a fascinating process in general relativity and a unique window on ultralight particles beyond the standard model. Bosons -- such as axions and dark photons -- with Compton wavelengths comparable to size of astrophysical black holes grow exponentially to form large clouds spinning down the black hole in the process and produce monochromatic continuous gravitational wave radiation. In the era of gravitational wave astronomy and increasingly sensitive observations of astrophysical black holes and their properties superradiance of new light particles is a promising avenue to search for new physics in regimes inaccessible to terrestrial experiments. This workshop will bring together theorists data analysts and observers in particle physics gravitational wave astronomy strong gravity and high energy astrophysics to explore the signatures of black hole superradiance and to study the current and future possibilities of searching for new particles with black holes.
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Experimental techniques in table-top fundamental physics
24 talks-Collection Number C17030In the last few years there has been a resurgence of interest in small scale high sensitivity experiments that look for new forces and new particles beyond the Standard Model. They promise to expand our understanding of the Cosmos and possibly explain mysteries such as Dark matter in a way that is complementary to colliders and other large scale experiments. There is a number of different physics motivations and approaches currently being explored in many on-going and newly proposed experiments and they often share common experimental techniques.Many workshops in this field focus on the theory motivations behind these experiments without emphasis on the details of the experimental techniques that enable precision measurements. There is also substantial experimental expertise across many fields, often outside of fundamental physics community, that can be relevant to ongoing and proposed experiments.Thus, we decided to organize the workshop around some of the common experimental techniques. We hope it will be educational for both experimentalists and theorists and lead to discussions on the best way forward. We would like to bring together experimentalists with different expertise in the hope that it will lead to new ideas through interdisciplinary interactions. For theorists, we expect it to provide better appreciation of the challenges and opportunities in improving the sensitivity of precision measurement experiments.
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New Directions in Dark Matter and Neutrino Physics
28 talks-Collection Number C17026Continuing investment in fundamental weakly-coupled science, primarily through neutrino experiments and dark matter searches, prompts the question: is the maximum possible scientific information going to be extracted from these experiments? Are there new creative uses of the existing and planned facilities that would advance our knowledge of fundamental physics? Are there physics targets that have been overlooked by the current approach? This workshop will attempt to advance discussion of these topics, and concentrate on non-traditional ideas and alternative methods of probing new physics, both at underground laboratories and at high-intensity accelerators. The workshop aims to complement the large international conference, Topics in Astroparticle and Underground Physics 2017, to be held in Sudbury ON July 24-28, by directly preceding that meeting.
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Radiative Corrections at the Intensity Frontier of Particle Physics
12 talks-Collection Number C17017Radiative Corrections at the Intensity Frontier of Particle Physics
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2015 Tri-Institute Summer School on Elementary Particles
46 talks-Collection Number C150322015 Tri-Institute Summer School on Elementary Particles -
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Preparing for the High-Luminosity Run of the LHC
-Collection Number C15092Preparing for the High-Luminosity Run of the LHC -
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Holographic Phase Transitions in the early Universe
Rashmish Mishra Harvard University
Strongly coupled confining theories are well-motivated in many BSM frameworks. The early universe cosmological history of these theories provides possibilities for observable signals. These theories undergo confinement deconfinement phase transition in the early universe, which can result in gravitational wave signals, observable in upcoming experiments. Using AdS/CFT, these theories have been studied in the Randall-Sundrum framework, and various quantitative aspects of the phase transition have been calculated. In the models that have been considered, the rate of transition from the deconfined phase to the confined phase is very small and leads to a period of supercooling. This enhances the gravitational wave signal, but presents a tension between a low confinement scale and fitting to the standard picture of BBN. In this talk, I will briefly review the calculations leading to these conclusions, and argue that some of the issues are specific to the simplified models that have been studied. I will present two modifications that are expected on general grounds, motivated by including strong IR effects systematically. Such effects change the results significantly. In particular, new qualitative features appear which have been missed in previous investigations. I will briefly comment on the phenomenological implications and open questions. The talk will be based on 2309.10090 and 2401.09633.
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CHIME is secretly an axion experiment - VIRTUAL
Katelin Schutz McGill University
In the presence of radiation from bright astrophysical sources at radio frequencies, axion dark matter can undergo stimulated decay to two nearly back-to-back photons, meaning that bright sources could have faint counterimages in other parts of the sky. The counterimages will be spectrally distinct from backgrounds, taking the form of a narrow radio line centered at half the axion mass with a spectral width determined by Doppler broadening in the dark matter halo. In essence, axions behave as an imperfect monochromatic mirror. The morphology of the induced images can be nontrivial, with blurring due to the geometry of the source and image as well as spatial smearing due to the galactic kinematics of axion dark matter. I will show that the axion decay-induced counterimages of galactic sources may be bright enough to be detectable with archival data from CHIME and other ongoing or planned radio surveys. CHIME therefore can run as a competitive axion experiment simultaneously with other science objectives, requiring no new hardware.
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