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T: Fachverband Teilchenphysik
T 106: Kosmische Strahlung VI
T 106.3: Vortrag
Freitag, 19. März 2010, 14:30–14:45, HG VIII
A MC simulation of showers induced by microscopic black holes — •Dariusz Gora1,2, Marco Haag1, and Markus Roth1 — 1Institut für experimentelle Kernphysik, Karlsruher Institut für Technologie (KIT), Karlsruhe — 2Institute of Nuclear Physics PAN, Cracow, Poland
Large surface detectors might be sensitive not only for extensive air showers induced by ultra high energy neutrinos but also for showers induced by hypothetical objects like microscopic black-holes. Microscopic black-holes might be produced in high energy particle collisions with the center of mass energies above the fundamental scale of gravity. These black-holes would decay rapidly by Hawking radiation into characteristic high multiplicity states of standard models particles and induce extensive air showers potentially detectable by a large surface neutrino detector. In this paper we study the possibility of detection of microscopic black-holes in case of the surface detector of the Pierre Auger Observatory. The expected event rate is calculated for up-going and down-going showers induced by microscopic black-holes. Our calculations show a significant deviation of the expected rate in comparison to the expected rate calculated by the Standard Model. The rates for of up-going neutrinos are almost completely suppressed, whereases the rate down-going neutrinos increase by a factor of about 50 compared to standard model predictions. The non observation of up-going neutrinos by the Pierre Auger Observatory in conjunction with a high rate of down-going neutrino-induced showers, would be a strong indication of physics beyond the Standard Model.