ELFT HÍRADÓ

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ELTE Fizikai Intézet

                                ORTVAY KOLLOKVIUM

                    2014. május 22., csütörtök, 15:00-kor
                Az ELTE Pázmány Péter s. 1/A alatti épületében
                           földszinti 0.81 előadóban

                        Markus Ackermann (DESY-Zeuthen)
            „High-energy neutrinos - a new messenger from the universe"

Kivonatos ismertetés:
The extraterrestrial neutrinos recently observed by the IceCube neutrino 
telescope that is located at the South Pole open a new field in astrophysics. 
Besides photons and charged cosmic rays we can now use a third and very 
unique messenger - the neutrino - to probe the high-energy universe. 
Neutrinos reach the Earth from astrophysical environments that are too 
dense for photons to escape. Unlike the charged cosmic rays they are not 
deflected in the ubiquitous magnetic fields of the interstellar and 
intergalactic space. Hence, neutrinos allow us to study high-energy processes 
in astrophysical environments in a new and complimentary way, and eventually 
to unravel the 100-year mystery of the origin of cosmic rays. After an 
introduction of the IceCube neutrino observatory that was completed in 2010, I 
will summarize our observations and searches for high-energy neutrinos from 
the universe and what we learned from these observations so far.