Conveners
Session 11
- Enrique Zas (Universidade de Santiago de Compostela)
Mr
Antonio J. Cuesta
(Institut de Ciències del Cosmos - Universitat de Barcelona)
11/09/2015, 09:00
The tiny inhomogeneities left over from the inflationary phase seeded the early Universe with primordial density perturbations. The photon-baryon fluid reacted to these perturbations by forming spherical pressure waves known as baryon acoustic oscillations (BAO). These waves propagated through the primordial plasma until the Universe became transparent to radiation, effectively stopping the...
Jaime Alvarez-Muniz
(Universidad de Santiago de Compostela)
11/09/2015, 09:20
The observation of ultrahigh energy neutrinos has become a priority in experimental Astroparticle Physics. They can be detected with a variety of techniques. In particular,
neutrinos can interact in the atmosphere or in the Earth's crust, producing air showers
that can be observed with arrays of detectors at the ground. With the Surface Detector of the Pierre Auger Observatory we are...
Manuel Masip
(Universidad de Granada)
11/09/2015, 09:40
IceCube has published the observation of 37 events of TeV-PeV energies. We show that the angular distribution, the spectrum and the muon to shower ratio of these events can not be explained by atmospheric neutrinos. On the other hand, IceCube's interpretation in terms of a diffuse astrophysical flux with $E^{-2}$ spectrum implies events at the Glashow resonance (6.4 PeV) that have not been...
Prof.
Emilio Elizalde
(ICE-CSIC and IEEC, Barcelona)
11/09/2015, 10:00
What drives the acceleration of the Universe expansion? Dark energy, of course, but what is it? Beautiful mathematics, involving the zeta function of pseudodifferential operators, are key in answering this question. After summarizing the uses of the zeta function for the definition of regularized traces and determinants, the motivations behind the celebrated Chowla-Selberg formula will be...
Valery Rubakov
(Ins. for Nuclear Research, Ras, Moscow)
11/09/2015, 10:40
