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Aug 26 – 30, 2024
University of Chicago
America/Chicago timezone

Search for neutrino signals from the Galactic plane and Cygnus Bubble based on LHAASO γ-ray observations

Aug 28, 2024, 2:55 PM
15m
501 (ERC)

501

ERC

Speaker

Wenlian Li (Tsung-Dao Lee Institute, Shanghai Jiao Tong University)

Description

High-energy neutrino and γ-ray emission are expected from the Galactic plane, generated by interactions between cosmic rays and the interstellar medium or radiation fields. Recent observations from LHAASO have detected diffuse γ-rays from the Galactic plane and an ultrahigh-energy γ-ray bubble (Cygnus Bubble) in the Cygnus region up to PeV energies, suggesting the possibility of neutrino emission. Using publicly available 7 years of IceCube track data with the full detector, we conducted searches for neutrino signals correlated with LHAASO diffuse Galactic γ-ray emission and Cygnus Bubble with a template method. A mild excess of neutrinos is observed in the Galactic plane. We will present results from these searches.

Primary author

Wenlian Li (Tsung-Dao Lee Institute, Shanghai Jiao Tong University)

Co-authors

Tian-Qi Huang (IHEP) Donglian Xu (Tsung-Dao Lee Institute, Shanghai Jiao Tong University) Huihai He (IHEP)

Presentation materials