Extreme Universe Space Observatory - EUSO

1. Extreme Universe Space Observatory - EUSO A Mission to Explore the Extremes of the Universe using the Highest Energy Cosmic Rays and Neutrinos Presented by Jim Adams for the EUSO Collaboration

2. EUSO COLLABORATION Principal Investigator: Livio Scarsi Institutions form ESA Member States IFCAI/CNR, Palermo, Italy INO, Florence, Italy ISAO/CNR, Bologna, Italy University of Genova, Italy University of Treste, Italy University of Padova, Italy University of Rome, Italy Universlty of Torino, Italy CEA/Saclay, France LPCC, College of France, Paris Observatory of Paris, France LAPP, Annecy, France MPI for Radio Astronomy, Germany University of Leeds, Leeds, UK University of Leister, UK LIP, Lisbon, Portugal Institutions outside ESA Member States RIKEN, Saitama, Japan NASA/MSFC, Huntsville, AL, USA Univ. of Ala., Huntsville, AL, USA Univ. of Calif., Los Angeles, CA, USA Univ. of Calif, Berkeley, CA, USA Univ. of Texas, Austin, TX, USA Vanderbilt Univ., Nashville, TN, USA

3. EUSO EUSO :ExtremeUniverseSpaceObservatory EAS Detectors - EUSO approach To obtain a statistically significant sample of EECR events at E>1020 eV, with flux values at the level of 1 particle/100km2/year, or with very low interaction cross section (high energy neutrinos), a gigantic detector of planetary scale is required. The Earth atmosphere, viewed from space with an acceptance of the order of > 2.5X105 km2 sr provides a target mass of the order of 1012 tons, is an ideal absorber/converter for EECRs and for Cosmic Neutrinos.