Conveners
D Astroparticle, Cosmology,d Gravity, Math Phys
- There are no conveners in this block
D Astroparticle, Cosmology,d Gravity, Math Phys
- There are no conveners in this block
D Astroparticle, Cosmology,d Gravity, Math Phys
- There are no conveners in this block
D Astroparticle, Cosmology,d Gravity, Math Phys
- Slava Mukhanov
The Pierre Auger Observatory is the largest ultrahigh-energy cosmic ray observatory in the world.
The huge amount of high quality data collected since 2004 up to now, with a total exposure approaching to 60.000 km^2 sr yr, led to great improvements in our knowledge of the ultra-energetic cosmic rays.
The suppression of the cosmic-ray flux at highest energies was clearly established. For the...
We find a simple modification of the longitudinal mode in General Relativity which incorporates the idea of limiting curvature. In this case the singularities in contracting Friedmann and Kasner universes are avoided, and instead, the universe has a regular bounce which takes place during the time inversely proportional to the square root of the limiting curvature. Away from the bounce,...
Core-collapse supernovae are vital for the evolution of elements, stars and galaxies. I would like to overview the current status of supernova studies with neutrino and nuclear physics. I focus on recent progress of the neutrino-radiation hydrodynamics in 2D/3D and remaining mysteries. Recently we can solve directly the Boltzmann equation in 6D (3D space + 3D momentum of neutrino) coupled...
WIMPs, Weekly Interacting Massive Particles with masses between 1 GeV and 1 TeV, might be the constituents of cosmological dark matter.
During the last twenty years, experiments aiming at direct detection of these particles have gained 6 orders of magnitude in sensitivity, yet there is no solid evidence of their existence.
I will review the main technologies and experimental results and...
Detection of gamma rays and cosmic rays from the annihilation or decay of dark matter particles is a promising method for identifying dark matter, understanding its intrinsic properties, and mapping its distribution in the universe. I will review recent results from the Fermi Gamma-ray Space Telescope and other space-based experiments, and highlight the constraints these currently place on...
The idea that spacetime might be quantised was already pondered by Heisenberg in 1930s, as a potential remedy to the divergencies lurking in quantum electrodynamics. However, the concept of a `noncommutative spacetime geometry' needed over a half of century to become established as a mathematical structure. Although it has not fulfilled the original Heiseberg's dream (so far), it revealed a...
LIGO/VIRGO Overview talk
The LIGO and the Virgo collaborations have recently announced the first detections of Gravitational Waves. Due to their weak amplitude, Gravitational Waves are expected to produce a very small effect on free-falling masses, which undergo a displacement of the order of 10$^{-18}$ m for a Km-scale distance. This discovery showed that interferometric detectors are suitable to reveal such a feeble...