| Issue |
EPJ Web Conf.
Volume 320, 2025
20th International Conference on Calorimetry in Particle Physics (CALOR 2024)
|
|
|---|---|---|
| Article Number | 00043 | |
| Number of page(s) | 4 | |
| DOI | https://doi.org/10.1051/epjconf/202532000043 | |
| Published online | 07 March 2025 | |
https://doi.org/10.1051/epjconf/202532000043
Performance of hadronic shower measurement with LHCf and ATLAS ZDC detectors
Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
* e-mail: kobayashi.haruka.m7@s.mail.nagoya-u.ac.jp
Published online: 7 March 2025
Ultrahigh-energy cosmic rays are measured by using air showers that generate many particles through hadronic interactions. Therefore understanding hadronic interactions is essential, especially for particle production in the very forward region, which contribute to the shower development. The collaboration of LHCf and ATLAS ZDC located behind the LHCf detector realize the precise measurement of neutrons in the very forward region of ATLAS collision point for studies of one pion exchange and diffractive events with pp collision at √s = 13.6 TeV. Herein, we present the performance of the LHCf + ATLAS ZDC joint operation studied using a beam test with 350 GeV proton beams at the SPS in 2021. We confirmed the good energy resolution of 22% compared to the LHCf stand alone measurement of 46%. In addition, we measured the uniformty of the reconstructed energy and the energy resolution. We confirmed that the uniformty of the reconstructed energy was less than 4%, and the energy resolution was uniform except for the edge region.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.