Study of air shower reconstruction with asymmetric lateral distribution function for TAx4 SD
TAx4 is an extension of the detection area for ultra-high-energy cosmic ray observations in the Telescope Array experiment. In the TAx4 surface detector analysis, a lateral distribution function (LDF) is used to describe particle density as a function of distance from the air shower axis. The current TAx4 analysis assumes a symmetric LDF around the shower axis; however, this assumption may not be ideal for inclined air showers. Due to differences in the path lengths of air shower particles traveling through the atmosphere, the particle density at ground level may be asymmetric between the upstream and downstream regions of the shower axis. This asymmetry can affect the accuracy of primary particle energy estimation. In this study, we develop a functional model to account for air shower asymmetry, aiming to improve the precision of energy determination in the TAx4 surface detector analysis.
Authors
- Yusuke Kawachi (ORCID: https://orcid.org/0009-0006-8676-9049)
- J. N. Matthews (ORCID: https://orcid.org/0000-0001-6940-5637)
- Kôichi Komatsu (ORCID: https://orcid.org/0000-0001-7191-0157)
- Y. Nakayama (ORCID: https://orcid.org/0000-0003-2350-4482)
- Toshiyuki Nonaka
- O. Kalashev (ORCID: https://orcid.org/0000-0002-7982-1842)
- Michal Vrábel (ORCID: https://orcid.org/0000-0003-3219-3874)
- Hiroki Nakamura (ORCID: https://orcid.org/0000-0002-2356-8470)
- I. Komae
- K. H. Lee (ORCID: https://orcid.org/0009-0005-4029-0238)
- W. Hanlon (ORCID: https://orcid.org/0000-0002-0109-4737)
- N. Sakurai (ORCID: https://orcid.org/0000-0001-6177-3929)
- Hideaki Shimodaira
- Shigehiro Nagataki
- Isaac Buckland
- B. G. Cheon (ORCID: https://orcid.org/0000-0002-8803-4429)
- Jeremy Smith
- John Belz (ORCID: https://orcid.org/0000-0001-9779-2750)
- D. R. Bergman (ORCID: https://orcid.org/0000-0002-4450-7925)
- A. González Ureña (ORCID: https://orcid.org/0000-0002-4460-8021)
- Kohei Endo (ORCID: https://orcid.org/0000-0003-4142-8129)
- Akimichi Tanaka
- P. Sokolsky (ORCID: https://orcid.org/0000-0003-3391-1022)
- Kenji Shinozaki (ORCID: https://orcid.org/0000-0002-0967-8710)
- Takashi Sako
- K. Kasahara (ORCID: https://orcid.org/0000-0001-5611-3301)
- H. Ohoka
- Ryunosuke Sakamoto
- Daisuke Ikeda (ORCID: https://orcid.org/0000-0002-7398-4616)
- Kozo Fujisue
- Noémie Globus (ORCID: https://orcid.org/0000-0001-9011-0737)
- K. Hibino (ORCID: https://orcid.org/0000-0001-9259-6371)
- Heungsu Shin
- Il Hung Park
- M. Teramoto (ORCID: https://orcid.org/0000-0001-5983-1149)
- М. С. Пширков (ORCID: https://orcid.org/0000-0002-5746-2017)
- Ivan Kharuk (ORCID: https://orcid.org/0000-0003-0370-6175)
- Atsushi Matsuzawa (ORCID: https://orcid.org/0000-0001-8303-3905)
- Tom Stroman
- Ryuji Takeishi (ORCID: https://orcid.org/0000-0001-6335-5317)
- Charlie Jui
- H. Sagawa (ORCID: https://orcid.org/0000-0002-6900-7855)
- M. J. Lee (ORCID: https://orcid.org/0000-0003-4528-4601)
- Donald W. Warren (ORCID: https://orcid.org/0000-0003-4648-3282)
- K. Y. Park
- A. Taketa (ORCID: https://orcid.org/0000-0001-6936-4118)
- S. Ozawa (ORCID: https://orcid.org/0000-0002-6700-5530)
- Г. И. Рубцов (ORCID: https://orcid.org/0000-0002-6106-2673)
- K. Yamazaki (ORCID: https://orcid.org/0000-0002-3771-2496)
- Rasha Abbasi
- Zane Gerber
- Mikhail Kuznetsov (ORCID: https://orcid.org/0000-0002-5180-8830)
- Tatsuo Nakayama
- E. Kido (ORCID: https://orcid.org/0000-0001-7278-3049)
- J. Shikita
- H. Oshima (ORCID: https://orcid.org/0000-0002-3346-2522)
- N. Hayashida
- C. Rott (ORCID: https://orcid.org/0000-0002-6958-6033)
- S. Ogio (ORCID: https://orcid.org/0000-0002-8300-2954)
- K. Kadota (ORCID: https://orcid.org/0000-0001-7672-1945)
- Takao HANAOKA
- Kohei Komori
- M. Przybylak (ORCID: https://orcid.org/0009-0004-6246-6620)
- Anatoli Fedynitch (ORCID: https://orcid.org/0000-0003-2837-3477)
- HangBae Kim
- H. Fujii (ORCID: https://orcid.org/0000-0001-5738-4680)
- K. Kawata (ORCID: https://orcid.org/0000-0001-6332-2005)
- Jon Paul Lundquist (ORCID: https://orcid.org/0000-0002-4245-5092)
- F. Kakimoto
- Federico Urban
- Megumi Kuroiwa (ORCID: https://orcid.org/0000-0002-4075-4881)
- K. Nakazawa
- Y. Tameda (ORCID: https://orcid.org/0000-0001-9750-5440)
- K. Fujita (ORCID: https://orcid.org/0009-0006-8756-3333)
- Dongsu Ryu (ORCID: https://orcid.org/0000-0002-5455-2957)
- Jackson Remington (ORCID: https://orcid.org/0000-0003-2952-4919)
- M. Onishi
- M. Fukushima (ORCID: https://orcid.org/0009-0004-1070-2724)
- Н. Сакаки (ORCID: https://orcid.org/0000-0003-3745-8958)
- Alexander Korochkin (ORCID: https://orcid.org/0000-0002-4383-5767)
- Daiki Sato (ORCID: https://orcid.org/0000-0001-8528-2315)
- M. Tanaka (ORCID: https://orcid.org/0000-0002-4697-894X)
- K. Nakagawa
- S. Troitsky (ORCID: https://orcid.org/0000-0001-6917-6600)
- Y. Kusumori
- Maria Kudenko (ORCID: https://orcid.org/0009-0001-9869-7410)
- J. Zvirzdin (ORCID: https://orcid.org/0009-0005-5418-0654)
- R. Kobo
- Jihee Kim
- Sang-Woo Kim (ORCID: https://orcid.org/0000-0001-6083-6262)
- Jihyun Kim (ORCID: https://orcid.org/0000-0002-8814-031X)
- Haoning He
- H. Tachibana (ORCID: https://orcid.org/0000-0003-1028-3959)
- William Campbell (ORCID: https://orcid.org/0009-0000-9428-3133)
- Toru Nakamura
- Nao Okazaki
- Ben Stokes
- Dmitri Ivanov
- Matt Potts
- Soomin Jeong
- Shigeharu Udo
- Masato Takita
- Petr Tinyakov
- Gordon Thomson
- Y. Tsunesada (ORCID: https://orcid.org/0000-0001-9238-6817)
- Greg Furlich
- Monica Allen
- Zach Zundel
- Takayuki Tomida
- Tareq Abu-Zayyad
- Ryo Higuchi
- Igor Tkachev
- Bayarto Lubsandorzhiev
- Shunsuke Sakurai
- Mizuki Mori
- T. Shibata
- Yana Zhezher
- M. Nakahara
- Kota Mizuno
- A. Oshima
- Masahiro Takeda
- Youngjoon Kwon
- Stanton Thomas
- Kaoru Takahashi
- H. Matsushita
- Koichi Sekino
- Chisato Koyama
- Frazer Bradfield
Publication Details
- Published
- 2025-09-24
- DOI
- https://doi.org/10.22323/1.501.0378
- Primary Topic
- Precipitation Measurement and Analysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Science Foundation
- European Commission
- National Research Foundation
- National Research Foundation of Korea
- University of Tokyo
- Ministry of Science and Higher Education of the Russian Federation
- U.S. Air Force
- U.S. Bureau of Land Management
- Japan Society for the Promotion of Science
- RIKEN
- Institute for Cosmic Ray Research, University of Tokyo