PoS - Proceedings of Science
Volume 301 - 35th International Cosmic Ray Conference (ICRC2017) - Session Neutrino. NU-astrophysical neutrinos
Measurement of High Energy Neutrino–Nucleon Cross Section and Astrophysical Neutrino Flux Anisotropy Study of Cascade Channel with IceCube
Y. Xu*  on behalf of the IceCube Collaboration
Full text: pdf
Pre-published on: August 16, 2017
Published on: August 03, 2018
We present a novel analysis method and performance studies to determine the neutrino-nucleon
deep-inelastic scattering cross section at high energies. The analysis uses atmospheric and extraterrestrial
neutrino-induced electromagnetic and hadronic showers (cascades) in the TeV-PeV
energy range, and assumes that the extraterrestrial neutrino flux is isotropic. Signal samples are
separated into two groups, "down-going" (from the Southern Hemisphere) and "up-going" (from
the Northern Hemisphere). Since up-going events may interact and be absorbed by the Earth while
down-going event rate remains unaffected, the ratio of down-going events and up-going events
for certain energy range is correlated with the cross section value. At the energies in this study,
the yields are sensitive to the neutrino-nucleon cross section and nucleon structure in a region of
kinematic overlap with HERA and with the LHC.We present the method for the neutrino-nucleon
cross section measurement in the TeV-PeV energy range using neutrino induced cascades with the
complete IceCube detector. In addition, we will test the hypothesis of a North-South anisotropy in
astrophysical neutrino flux, assuming the knowledge of the neutrino-nucleon cross section from
the electroweak physics.
DOI: https://doi.org/10.22323/1.301.0978
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.