Measurement of masses of $\Xi_c(2645)$ and $\Xi_c(2815)$ baryons

TL;DR

This paper reports precise measurements of the masses of the $\Xi_c(2645)$ and $\Xi_c(2815)$ baryons using data from the Belle experiment, observing specific decay modes to improve mass accuracy.

Contribution

The study provides the first precise mass measurements of these baryons using Belle data, enhancing understanding of charmed baryon spectroscopy.

Findings

Measured masses of $\Xi_c(2645)$ and $\Xi_c(2815)$ baryons.

Observed decay modes for these baryons in Belle data.

Improved precision in baryon mass values.

Abstract

We report a precise measurement of masses of the $\Xi_c(2645)$ and $\Xi_c(2815)$ baryons using data collected by the Belle experiment at the KEKB $e^+ e^-$ collider. The states $\Xi_c(2645)^{0,+}$ are observed in the $\Xi_c^{+,0}\pi^{-,+}$ decay modes, while the $\Xi_c(2815)^{0,+}$ are reconstructed in the $\Xi_c(2645)^{+,0}\pi^{-,+}$ decay modes.