Gordon Godfrey Workshop on Astroparticle Physics

30 Nov 2020, 08:50 → 4 Dec 2020, 16:00 Australia/Sydney

UNSW Sydney

The Gordon Godfrey Workshop on Astroparticle Physics is hosted by the University of New South Wales and will be held between Monday 30 November to Friday 4 December, 2020 via zoom. 

We ask everyone to register to keep track of numbers, in order to avoid problems with the zoom connection. You can connect via https://unsw.zoom.us/j/87826010618?pwd=OEJuaWpveDFnQ1pWcktEMkpXQW0xZz09 .

The main aim of the workshop is to discuss topics relevant to a proposal for an ARC Centre of Excellence for Cosmic Origins and Extremes. The proposal consists of three themes

1. Origin of Extreme Particles
2. Origin of Mass and Matter
3. Origin of Expansion and Structure

On each day, there will be three invited talks and a discussion session after the talks.

Theme 1: Origin of Extreme Particles

Accelerated particles such as cosmic rays and electrons are an indicator of the Universe’s extreme processes. Topics and challenges within this theme include: extreme particle acceleration processes in the early and the current Universe; how are these processes set up?; What roles do accelerated particles play in galaxy and stellar formation?; What role do they play in the early Universe’s evolution?; Is the Standard Model valid beyond collider energies?; How can we probe beyond-Standard Model physics in astrophysical settings? How do accelerated particles influence the conditions for life?

Theme 2: Origin of Mass and Matter

The origin of particle masses and the origin of matter itself is one of the deepest mysteries of fundamental physics.  Solving this problem requires understanding the acquisition of particle mass in the early Universe, and the evolution of baryon, lepton and dark matter abundance over cosmic history.  Some of the most important specific questions are: How did particles acquire mass in the early Universe?  What is the theoretical mechanism that gives neutrinos mass?  Why is there much more visible matter than antimatter in the universe?  How were the elements that make up our solar system and us synthesized?

Theme 3: Origin of Expansion and Structure

In its 13.8 billion year history, our observable Universe has grown by a factor of about 10^50.  In the course of this enormous expansion, it has experienced temperatures and energies extending far beyond the comfortable realms of physics testable by modern laboratory experiments.  The focus of this theme is to investigate the origin of the Universe’s expansion, which happens to also be inextricably linked to the origin of the Universe’s structure: firstly, because the initial seeds for the formation of cosmic structures were generated during cosmic inflation – a period of exponential expansion in the earliest stages of the Universe’s history.  And secondly, because our most powerful source of information about the Universe’s composition and history are probes of the cosmic structure, such as the anisotropies of the cosmic microwave background (CMB).

 

Confirmed speakers:

• Jenni Adams (Canterbury)
• Felix Aharonian (MPIK/DIAS)
• Silvia Celli (Rome)
• Richard Easther (Auckland)
• Julia Harz (TUM)
• Felix Kahlhoefer (Aachen)
• Archil Kobakhidze (Sydney)
• Mark Krumholz (ANU)
• Geraint Lewis (Sydney)
• Christian Reichardt (Melbourne)
• Gavin Rowell (Adelaide)
• Misao Sasaki (IPMU)
• Andrew Taylor (DESY)
• Martin White (Adelaide)

Monday, 30 November

09:00 → 12:30 Plenary

Convener: Csaba Balazs (Monash University)

09:00 Introduction

Speaker: Gavin Rowell (University of Adelaide)

introduction.pdf

09:10 Dark Matter Physics in this and other universes

Speaker: Geraint Lewis (The University of Sydney)

10:00 questions and break

10:10 Inflation and Neutrinos: Searching for New Physics with the Cosmic Microwave Background

Speaker: Dr Christian Reichardt (University of Melbourne)

20201130_cmb.pdf

11:00 questions and break

11:10 Facilities for Extreme Particles and Photons

Speaker: Gavin Rowell (University of Adelaide)

gpr-XParticleFacilities.pdf

12:00 Discussion

Speaker: Gavin Rowell (University of Adelaide)

Tuesday, 1 December

09:00 → 12:50 Plenary

Convener: Roland Crocker (Australian National University)

09:00 Extreme Particle Accelerators

Speaker: Felix Aharonian (MPIK/DIAS)

Aharonian_GGW-ExAcc.pdf

09:50 questions and break

10:00 Cosmic rays and their role in galaxy evolution

Speaker: Mark Krumholz (ANU)

godfrey20.key

krumholz_godfrey2020.pdf

10:50 questions and break

11:00 Discussion

Speaker: Gavin Rowell (University of Adelaide)

11:30 break

12:00 Prior(s) and Prejudice(s): Directions for Particle Cosmology

Speaker: Richard Easther (U Auckland)

Wednesday, 2 December

09:00 → 12:30 Plenary

Convener: Prof. Miroslav Filipovic (Western Sydney University)

09:00 The Search for Efficient Particle Accelerators in the Universe

Speaker: Andrew Taylor (DIAS)

Australia_Dec2020.pdf

09:50 questions and break

10:00 Primordial Black Holes and Gravitational Waves

Speaker: Misao Sasaki

PBH-GW_GGWAP.pdf

10:50 questions and break

11:00 GAMBIT

Speaker: Martin John White (University of Adelaide (AU))

UNSW-Dec2020.pdf

11:50 Discussion

Speaker: Gavin Rowell (University of Adelaide)

Thursday, 3 December

09:00 → 12:30 Plenary

Convener: Michael Schmidt (UNSW Sydney)

09:00 CosmoBit and DarkBit: Building bridges between particle physics and cosmology

Speaker: Felix Kahlhoefer (RWTH Aachen)

CoE.pdf

09:50 questions and break

10:00 Cosmic relics

Speaker: Prof. Archil Kobakhidze (The University of Sydney)

cosmic_relics.pdf

10:50 questions and break

11:00 Neutrino astrophysics

Speaker: Jenni Adams (University of Canterbury)

11:50 Discussion

Speaker: Gavin Rowell (University of Adelaide)

Friday, 4 December

09:00 → 11:40 Plenary

Convener: Jan Hamann (The University of New South Wales)

09:00 Extreme Particle Interactions with the Interstellar Medium: Photon and Particle Signatures

Speaker: Dr Silvia Celli (La Sapienza Università di Roma)

Celli_GordonGodfrey.pdf

09:50 questions and break

10:00 Leptogenesis

Speaker: Dr Julia Harz (Technical University of Munich (TUM))

GodfreyWorkshop2020indico.pdf

10:50 questions and break

11:00 Dark matter candidates and how to detect them

Speaker: Victor Flambaum (University of New South Wales)

Godfrey2020.pdf

Godfrey2020.pptx

11:10 Discussion

Speaker: Gavin Rowell (University of Adelaide)

14:00 → 16:00 Plenary: CoE discussion

Convener: Gavin Rowell (University of Adelaide)

14:00 CoE Overview

Speakers: Prof. Celine Boehm, Gavin Rowell (University of Adelaide)

CoE-summary.pdf

14:15 Community Input

14:15 Quantum approach to dark matter

Speaker: Allan Ernest (CSU)

14:25 Testing/constraining fuzzy DM with the Keck telescope

Speaker: Duncan Forbes (Swinburne University)

CoE_Forbes.pdf

CoE_Forbes.pptx

15:00 CoE discussion

Speakers: Celine Boehm, Gavin Rowell (University of Adelaide)