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중성미자 천체입자물리연구실(카르스텐 로트 교수님)에서 Karlsruhe Institute of Technology (KIT)의 Frank G. Schröder   박사님을 초청하여 아래와 같이 세미나를 개최합니다.

학과 구성원 여러분의 많은 참석을 부탁드립니다.

○ 일시: 2017년 7월 24일(월) 오전 11:00

○ 장소: 학술정보관 7층 Creative Learning Room

○ 연사: Dr. Frank G. Schröder  (Karlsruhe Institute of Technology (KIT))

○ Title: Antenna Arrays for Astroparticle Physics: Radio Detection of High-Energy Cosmic Rays

○ Abstract:   More than 100 years after the discovery of cosmic rays we still know little about the origin of the most energetic particles in the universe. These cosmic particles are mainly atomic nuclei which are accelerated by nature to energies far beyond the reach of human-made accelerators. The highest energy particles seem to originate from other galaxies, but neither these extragalactic sources nor the most energetic sources in our galaxy, the Milky Way, are known. To solve these questions, on the one hand, more accurate measurements of the energy-dependent mass composition of the cosmic rays is required. On the other hand, the search for neutral particles at the highest energy, in particular neutrinos, can provide a direct discovery of the sources. In contrast to charged particles, neutral particles are not deflected by magnetic fields and point back to their origin. In the last years, digital antenna arrays have become a competitive alternative for cosmic rays above 10^17 eV. By complementing existing cosmic-ray observatories, antennas can boost the total measurement accuracy. At the same time, radio detectors are the most promising technique for the search for ultra-high-energy neutrinos. Either way, the radio technique can be the key to solve this long-standing mystery of astroparticle physics. This talk will provide an overview on existing and future radio experiments for cosmic rays and neutrinos.

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