25–29 Apr 2026
Kechuang Building
Asia/Shanghai timezone

Enhancing LACT Reconstruction with KM2A Information: A Machine Learning Approach

27 Apr 2026, 16:10
5m
A102 (Kechuang Building)

A102

Kechuang Building

NO.1520 Taihu Blvd, Suzhou, Jiangsu, China
Poster report(print size: 0.6m Wide*0.9m High) AI and Others session

Speaker

Hang Fan (University of Science and Technology of China)

Description

The LHAASO experiment combines multiple detector arrays with complementary sensitivities to extensive air showers. Among them, KM2A has strong gamma–hadron discrimination capability, while LACT provides high-resolution imaging and precise directional reconstruction. Exploiting the synergy between these two detectors is crucial for improving the overall performance of the experiment.

In this study, we investigate a hybrid reconstruction approach in which KM2A information is used to assist LACT particle identification. A common dataset is reconstructed independently by both detectors, and the KM2A-derived parameters are incorporated into the machine learning classifier of LACT.

By augmenting LACT input features with KM2A observables, the gamma–hadron separation is significantly improved. This method demonstrates the potential of multi-detector data fusion to enhance reconstruction performance in ground-based gamma-ray experiments.

Primary authors

Hang Fan (University of Science and Technology of China) 志鹏 张 (中国科学技术大学) 睿智 杨 (University of Science and Technology of China)

Presentation materials

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