Radiative decays of $P$-wave charmed baryons in the $SU(3)$ flavor $\bf6_F$ representation

TL;DR

This paper provides a comprehensive QCD sum rule analysis of the radiative decays of P-wave charmed baryons in the SU(3) flavor 6_F representation, highlighting their significance for experimental detection.

Contribution

It introduces a systematic study of radiative decays of P-wave charmed baryons using light-cone QCD sum rules within heavy quark effective theory, complementing previous mass and strong decay analyses.

Findings

Several excited charmed baryons have suppressed strong decay widths.

Radiative decay channels are crucial for experimental identification.

The analysis offers a complete theoretical framework for these baryons.

Abstract

We perform a comprehensive investigation of the radiative decays of $P$-wave charmed baryons in the $SU(3)$ flavor $\mathbf{6}_F$ representation, employing the light-cone QCD sum rule approach within the framework of heavy quark effective theory. We analyze their electromagnetic transitions into ground-state charmed baryons via photon emission. When combined with the mass spectra and strong decay properties previously studied in Ref.~\cite{Yang:2021lce}, our results constitute a systematic and complete QCD sum rule analysis of the $P$-wave singly charmed baryons within the framework of heavy quark effective theory. As summarized in Table~\ref{tab:result}, several excited charmed baryons are found to possess suppressed strong decay widths, thereby rendering their radiative decay channels particularly significant for experimental identification and theoretical understanding.