Parallel Session F
- Giuseppe Di Sciascio (ROMA2)
Dr Roberto Iuppa (University of Rome Tor Vergata)
In the last decade important results were obtained about CR anisotropy at energy below the knee, i.e. for galactic CRs. Experiments like Tibet ASg, Milagro, ARGO-YBJ and Icecube reached unprecedented accuracy in measuring the arrival direction distribution of CRs and collected more than 10^12 showers both in the northern and the southern hemisphere. There have been important findings, like the...
Prof. Anatoly Petrukhin (MEPhI)
The term “muon puzzle” was finally formulated at International Symposium on Future Directions in UHECR Physics in CERN 13-16 February 2012. In this talk various aspects of muon puzzle and brief history of their appearance are considered. It is possible to separate two types of experimental results: an excess of muon bundles which is increasing with energy of primary particles, and excess of...
Prof. Daniele Fargion (ROMA1)
UHECR may keep memory of their source because their rigidity do not suffer much of magnetic bending. Therefore we are waiting for the birth of an UHECR astronomy. We do observe by AUGER a little UHECR clustering. On the other side at TeVs-PeVs energy scale cosmic rays at medium scale show anisotropy in the sky, without any plausible source or reasonable explanation. We suggest that UHECR...
Mrs Jennifer MALLER (Subatech)
Deployed at the end of 2010 at the Pierre Auger observatory, the first stage of the Auger Engineering Radio Array, AERA24, consists of 24 radio stations covering an area of 0.5 km². AERA measures the radio emission from cosmic-ray induced air showers. This electric field is used to constrain the characteristics of the primary particle: arrival direction, energy and nature.These studies are...
Dr M Angeles Perez Garcia (University of Salamanca and IUFFyM, Spain)
We discuss the possibility that some recently measured anisotropic cosmic ray components in the TeV-PeV range may be an indication of the ejection of a peculiar type of matter formed in a neutron star internal transition caused by the critical accretion of dark matter from the galactic halo.Current parallel accelerator experiments on earth or on the ISS may shed light on this exotic form of matter.
Paolo Montini (INFN - Sezione di Roma TRE)
The ARGO-YBJ experiment is a full-coverage air shower detector operating at the Yangbajing International Cosmic Ray Observatory (Tibet, P.R China, 4300 m a.s.l.). The detector was in stable data taking in its full configuration from Nov. 2007 to Dec 2012. More than 10^11 events have been collected and reconstructed. Due to its characteristics (full-coverage, high segmentation,high altitude...
Rafael Alves Batista (University of Hamburg)
The origin, propagation, and mechanisms of acceleration of the ultra-high energy cosmic rays (UHECRs) are not yet well understood. Aiming for a better interpretation of the available experimental data, it is important to develop computational tools to propagate these cosmic rays from their source to Earth, and confront theoretical models with the current data. A realistic simulation of the...