-
Prof. Garret Cotter (University of Oxford)29/06/2026, 10:05
The Cherenkov Telescope Array Observatory (CTAO) is the next-generation facility for ground-based very-high-energy gamma-ray astronomy, with construction and early operations underway at sites in La Palma and Chile. Covering roughly 20 GeV to 300 TeV, CTAO will deliver unprecedented sensitivity and angular resolution across both hemispheres. This general talk will introduce CTAO’s...
Go to contribution page -
Nicolas Grimbaum Yamamoto (Université Libre de Bruxelles)29/06/2026, 10:35
Among the few ways to probe the early Universe, high energy neutrinos offer a unique window on phenomena occurring before recombination. We discuss primordial high energy neutrinos (PHENUs): neutrinos produced from the decay or annihilation of long-lived relics in the early Universe, arriving at detectors today with energies in the GeV-PeV range. We summarise the results of a general study of...
Go to contribution page -
Shyam Balaji29/06/2026, 11:30
In this talk, I will present recent work using MeV Galactic observations to search for dark matter. I will discuss how the long standing 511 keV gamma-ray line, recent 2 MeV in-flight annihilation excess, and anomalous Central Molecular Zone (CMZ) ionisation can be addressed within one model paradigm, "Excited Dark Matter". A brief overview for future experimental prospects will also be covered.
Go to contribution page -
29/06/2026, 12:00
-
Duarte Feiteira29/06/2026, 14:00
In this talk, I will discuss the gravitational production of scalars and fermions during inflation. For scalars, I will compare Bogolyubov coefficient and Starobinsky stochastic approaches, showing that they only agree in the limit of infinitely long inflation. High-scale inflation is very efficient in particle production, leading to constraints on the existence of free, light, and stable...
Go to contribution page -
Panagiotis Giannadakis (King's College London)29/06/2026, 14:30
We develop a fully relativistic formulation for the evolution of a dark
Go to contribution page
sector containing fermions coupled to a light scalar field in an arbitrary cosmological background characterised by equation of state parameter w. Treating the fermions as a degenerate Fermi gas decoupled from the background cosmic fluid, and assuming a Yukawa-type coupling with the scalar we show that the scalar dynamics... -
Gaurang Kane29/06/2026, 15:00
-
DHRUV PASARI (Durham University)29/06/2026, 16:00
Domain walls beyond the textbook Z₂ kink have been studied analytically and through effective models, but seldom simulated directly on the lattice. We close that gap, evolving Z₃ and Z₄ wall networks with CosmoLattice. These networks are qualitatively richer than Z₂: walls come in distinct species, meet along junctions, and can transmute into one another rather than simply annihilating. To...
Go to contribution page -
George Parish (Kings College London)29/06/2026, 16:30
In this talk, I will discuss the applications of atom interferometry to searches for fundamental physics signals such as ultralight dark matter and gravitational waves, and how these are being put into practice in projects such as AION. I will also discuss some of the signal analysis techniques being developed to deal with gravity gradient noise and reach the required sensitivities for...
Go to contribution page -
Dr Xianguo Lu (University of Warwick)29/06/2026, 17:00
-
Maximilian Detering
Dark matter (DM) decay in the Galactic halo injects energetic $e^\pm$ that can inverse-Compton scatter (ICS) solar photons into $\gamma$ rays, producing a diffuse halo of emission around the Sun. We present the first quantitative study of this signal as a probe of decaying DM. Using 15 years of Fermi-LAT solar-halo data, we compute the heliocentric ICS signal and derive limits on the DM...
Go to contribution page -
Dr Kirsty Duffy, Lucien Heurtier (King's College London)
Choose timezone
Your profile timezone: