Scineghe2014
04-06 June 2014
Lisbon - Portugal
published May 28, 2015
Lisbon - Portugal
published May 28, 2015
Fundamental physics with high energy cosmic gamma rays
The 2014 edition of the SciNeGHE workshop focuses on the interplay between very-high energy gamma astrophysics and fundamental physics.
Observations of high Energy gamma rays are performed nowadays: from space, by the Large Area Telescope onboard the Fermi satellite and by the AGILE satellite, and from Earth, by the Imaging Air Cherenkov Telescopes H.E.S.S., MAGIC and VERITAS, and by the Extensive Air Shower detector HAWC (under completion). These instruments have discovered different populations of gamma-ray emitters and studied in detail the non-thermal processes producing this high-energy radiation. Their scientific objectives include also questions related to fundamental physics. Using gamma-ray instruments we study the origin of cosmic rays, and the cosmic electron-positron spectrum at high energies; moreover, we can search for signatures of dark matter. By observing the gamma-ray emission from sources at cosmological distances, we measure the intensity and evolution of the extragalactic background radiation, measure the energy of the cosmic vacuum searching for axion-like particles in a domain complementary to laboratory experiments, and perform tests of Lorentz invariance. This is why the field is in rapid development, and many new experiments involving experimental particle physicists are in construction and in project.
| Chapter 1 - Almost present and future gamma detectors; their role for fundamental physics |
|---|
|
The Cherenkov Telescope Array
|
|
Study of a Cherenkov camera demonstrator for CTA
|
|
Measurements and tests on FBK silicon sensors with an otpmized electronic design for a CTA camera
|
|
HAWC
|
|
DAMPE (and HERD)
|
|
Gamma400
|
|
The GAMMA-400 gamma-ray telescope characteristics. Angular resolution and electrons/protons separation.
|
|
Solar panels as cosmic ray detectors
|
| Chapter 2: Photon propagation and cosmology; background photons in the intergalactic medium |
|
From galactic stellar populations to the EBL
|
|
EBL from galaxy evolution
|
|
EBL signature on VHE gamma photons
|
|
VHE photon propagation and determination of the cosmological constants
|
|
Intergalactic magnetic fields
|
|
Gamma ghosts & lensing
|
|
Search for extended gamma-ray halos around AGN with VERITAS
|
| Chapter 3: Axions and ALPs |
|
Introduction to ALPs and review of laboratory-based experiments for ALP detection
|
|
Photon-ALP conversion in intergalactic space
|
|
Photon-ALP conversions inside AGN
|
|
Hints for an axion-like particle from PKS 1222+216
|
| Chapter 4 - Search for Dark Matter; exotics and antimatter |
|
Review of LCDM and implications for indirect detection
|
|
The dark matter distribution in WDM and mixed DM models
|
|
Fermi-LAT review - lines in particular
|
|
Review of Dark Matter searches with Cherenkov telescopes
|
|
Complementarity between collider, direct detection, and indirect detection experiments
|
|
Constraints on WIMP annihilation for contracted Dark Matter in the inner Galaxy with gamma-rays
|
|
Gamma-ray anisotropies with the Cherenkov Telescope Array
|
|
Measurements of cosmic ray electrons and positrons - current status and perspectives
|
|
Antimatter search in the cosmic ray flux with ground-based experiments
|
| Chapter 5 - Synergies of VHE gamma detectors with different wavelengths and messengers |
|
Propagation and Acceleration of CR: what gamma rays can say
|
|
HESS and galactic accelerators
|
|
The Gamma-ray Milky Way above 10 GeV: Distinguishing Sources from Diffuse Emission
|
|
Anisotropy of CR: indications for gamma rays?
|
|
Present and future ground-based gamma-ray experiments and the study of the cosmic-ray energy spectra and composition; synergies with gamma rays
|
|
Auger: Present results and possible futures
|
|
Photon search at the Pierre Auger Observatory
|
|
Gamma ray astronomy with ARGO-YBJ
|
|
Neutrinos and the hadronic component of CR
|
|
High-energy pulsars from gamma rays to gravitational waves
|
|
Blazar jet emission: a statistical approach
|
|
GRB Studies with AGILE
|
