The 4th Topics of Particle, Astro and Cosmo Frontiers (TOPAC 2026) 第4届粒子物理、天体物理和宇宙学前沿国际学术研讨会

Session

Plenary Theory 12: Novel Probes and EFT (Room 567, Chair Wen-Yuan Ai)

20 Apr 2026, 10:00

61. Hunting Dark Matter with Gravitational Wave detectors

Yue Zhao (HKUST)

20/04/2026, 10:00

This talk will focus on how gravitational-wave experiments can help probe dark matter candidates. The first part will demonstrate how data from the LIGO-Virgo-KAGRA Collaboration can be leveraged to distinguish between annihilating weakly interacting massive particles and a population of millisecond pulsars as the source of the long-standing GeV gamma-ray excess at the Galactic Center. I will...

94. Weak Gravity Conjecture in the sky: gravitational waves from preheating in Einstein-Maxwell-Scalar EFT

Anna Tokareva (Hangzhou Institute for Advanced Study)

20/04/2026, 10:25

The effective field theory (EFT) concept provides a necessary tool for obtaining general predictions of low-energy theory valid below its unitarity-breaking scale (cutoff scale). Early Universe inflation and subsequent reheating could be a unique setup for testing potentially observable effects coming from the derivative expansion of the corresponding EFT around the flat space vacuum. In this...