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Kimb Moody University of Arizona
REU program-Summer 2003 |
My Mentor, Paolo Desiati AMANDA homepage National Science Foundation Kitt Peak The University of Arizona The University of Wisconsin |
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AMANDA is a telescope, but not in the typical sense of the word. Instead of gathering optical, infrared, or x-ray light, AMANDA is designed as a "neutrino" telescope. Incoming cosmic rays (consisting primarily of protons) interact with the molecules in the atmosphere to produce D particles, which, in turn, decay into muons and neutrinos. Since neutrinos are extremely difficult to detect directly, we set out to detect the number of muons produced in the atmosphere. Over a broad range of energy, 10 Gev-200 TeV, the number of muons produced is the same as the number of neutrinos produced. Higher energy neutrinos are produced extragalatically from AGN (active galactic nuclei), GRB (Gamma Ray Bursts), and Quasars. These neutrinos have much, much higher energies than the conventional ones produced in the atmosphere. One of the goals of AMANDA is to try to find a flux of high-energy neutrinos. An obstacle arises when sorting through the data: how can one distinguish the lower-energy muons from the higher-energy ones? The goal of my research was to find a method separating the prompt muons from the more abundant conventional (background) muons.

The research I've conducted this summer compares simulated lower-energy muon and "prompt" muon events with actual experimental events. The models the AMANDA collaboration uses to simulate the lower-energy conventional muons agree very well with experimental data.

