Studies on the unfolding of the atmospheric neutrino spectrum with IceCube 59 using the TRUEE algorithm
Loading...
Date
2012-02-28
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The measurement of the atmospheric neutrino energy spectrum provides information about the diffuse
neutrino flux from extragalactic sources. A relative increase of the spectrum toward higher energies could be evidence
for neutrino producing hadronic processes in the cosmic high energy accelerators, such as active galactic nuclei or
gamma ray bursts. IceCube is currently the largest neutrino detector on Earth and is placed in the antarctic ice at the
geographic South Pole. IceCube permits the detection of neutrinos with energies beyond 10^6 GeV. Since the acceptance
and the resolution of neutrino telescopes suffer from the finite resolution and limited acceptance, a regularized unfolding
method is used to extract the energy distribution of neutrinos from the measured observables. For AMANDA, the
unfolding was done with the RUN algorithm. Based on the basic concept of this program and for data analyses in the
ROOT frame, a new deconvolution algorithm (TRUEE) has been written and tested. With this new algorithm, studies
on the analysis of the atmospheric neutrino spectrum measured with the IceCube 59 string configuration are presented.
Description
Table of contents
Keywords
atmospheric neutrino, energy spectrum, IceCube, regularized unfolding, RUN, TRUEE