Track-Like Event Analysis at the Baikal-GVD Neutrino Telescope

TL;DR

This paper discusses the extension of track-like event analysis at Baikal-GVD, highlighting the first high-energy neutrino candidate events and advancements in multi-cluster track reconstruction for neutrino astronomy.

Contribution

It introduces an expanded analysis of track-like events at Baikal-GVD, including the first high-energy neutrino candidates and improvements in multi-cluster reconstruction methods.

Findings

First high-energy track-like neutrino candidates identified.

Extended analysis covering a wider data set.

Progress in multi-cluster track reconstruction techniques.

Abstract

Reconstructed tracks of muons produced in neutrino interactions provide the precise probe for the neutrino direction. Therefore, track-like events are a powerful tool to search for neutrino point sources. Recently, Baikal-GVD has demonstrated the first sample of low-energy neutrino candidate events extracted from the data of the season 2019 in a so-called single-cluster analysis - treating each cluster as an independent detector. In this paper, the extension of the track-like event analysis to a wider data set is discussed and the first high-energy track-like events are demonstrated. The status of multi-cluster track reconstruction and that of the event analysis are also discussed.