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아래와 같이 콜로퀴움을 개최하오니 많이 참석해 주시기 바랍니다.
4시 20분부터 제1과학관 31214 e+강의실에서 다과를 준비하오니 많은 참석 부탁드립니다

 

아 래

 

제목: Radio Detection of Ultra High Energy Cosmic Rays and Neutrinos in Antarctica

 

연사:  남  지  우  교수님 ( National Taiwan University)

                        (성균관대학교 물리학과 89학번 동문님)

 

일시: 2014년 4월 2일(수) 오후4:30

 

장소: 제1과학관 31214  첨단e+강의실

 

초록:

While gratulating IceCube’s recent achievements of the first of observation of extragalactic Ultra High Energy (UHE) neutrinos (energies E > 1018 eV ) from extra-galaxy, physicists are still facing big challenges to improve its statistics. We would need more than an order of magnitude of target volume in order to identify origins of UHE neutrinos. A new promising approach is to use radio signals from showers induced by UHE neutrinos via the Askaryan effect. Taking a great advantage of a long attenuation length, the radio technique provides a power way to increase the target volume. As a frontier, the ANITA (ANtarctic Impulsive Transient Antenna) experiment which is a balloon-borne neutrino telescope which consists of an array of broad-band horn antennas, successfully completed two flights over Antarctica during the 2006-2007 and 2008-2009 Austral summer seasons, and will be have another flight in 2014-2015 season. ANITA has showed additional detection capability of UHE cosmic rays too, suggesting the radio technique will be a strong method after Pier Auger Observatory.  Following experiments such as Askaryan Raio Array (ARA) and Antarctic Ross Ice-Shelf ANTenna Neutrino Array (ARIANNA) have been proposed for ground based antenna arrays in Antarctica. They have showed promising capabilities of neutrino detection over IceCube. In this talk, I will talk about the radio technique for UHE neutrinos and give a summary of existing experimental efforts in Antarctica. I also briefly introduce a Taiwanese local experiment, TAROGE which was recently funded.