The Water Cherenkov Detector Array (WCDA) of LHAASO are designed to work in combination
for measuring the energy spectra of the cosmic ray species over a very wide energy range from a
few TeV to 10 PeV. The energy calibration can be achieved with a proven technique of measuring
the westward shift of Moon shadow cast by galactic cosmic rays due to the geomagnetic field. This
deflection angle is inversely proportional to the cosmic ray rigidity. The precise measurement
of the shifts by WCDA allows us to calibrate its energy scale for energies as high as 35 TeV. In
this work, we demonstrate the feasibility of the method using the data collected from May 2019 to
January 2020 byWCDA-1, the first of the three water Cherenkov ponds, already commissioned at
the LHAASO site.
The Energy Scale Calibration using the Moon Shadow of LHAASO-WCDA Detector
Full text:
pdf
Pre-published on:
July 11, 2021
Published on:
March 18, 2022
Abstract
DOI: https://doi.org/10.22323/1.395.0356
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
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.