******** CTCD/NTHU HEP Seminar ********

Speaker ：Dr. Karolin Hymon (AS IoP)

Title ：Probing Seasonal Variations of Atmospheric Leptons with IceCube

Time ：12:30-13:30, Thursday, 2025/5/29

Place ：R521, 5F, General Building II, Nat'l Tsing Hua Univ.

Host ： Prof. Po-Yen Tseng (NTHU)

Abstract:
The IceCube Neutrino Observatory enables precise measurements of
high-energy atmospheric leptons, in particular neutrinos and muons, at
nprecedented statistics. These leptons are produced from cosmic ray
interactions in the atmosphere, primarily through the decay of pions and
kaons. Seasonal temperature variations in the stratosphere influence the
rate of these particles, with effects expected to be more pronounced at
higher energies. In this talk, I will discuss how the measurements of
seasonal variations in atmospheric lepton fluxes evolved from
measurements of the rate variation to the energy-dependence of these
variations.