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Radiative decays of $P$ -wave charmed baryons in the $S U (3)$ flavor $6_{F}$ representation

Xuan Luo^1,*, Hua-Xing Chen ^1,†, Er-Liang Cui^2,‡, Hui-Min Yang ^3,§, Dan Zhou ^4,∥, and Zhi-Yong Zhou ^1,¶

¹School of Physics, Southeast University, Nanjing 210094, China
²College of Science, Northwest A&F University, Yangling 712100, China
³School of Physics and Center of High Energy Physics, Peking University, Beijing 100871, China
⁴Department of Physics and Hebei Key Laboratory of Photophysics Research and Application, Hebei Normal University, Shijiazhuang 050024, China

^*Contact author: cnxluo@seu.edu.cn
^†Contact author: hxchen@seu.edu.cn
^‡Contact author: erliang.cui@nwafu.edu.cn
^§Contact author: hmyang@pku.edu.cn
^∥Contact author: danzhou@hebtu.edu.cn
^¶Contact author: zhouzhy@seu.edu.cn

Phys. Rev. D 112, 096028 – Published 24 November, 2025

DOI: https://doi.org/10.1103/5w6h-xr48

Abstract

We perform a comprehensive investigation of the radiative decays of $P$ -wave charmed baryons in the $S U (3)$ flavor $6_{F}$ representation, employing the light-cone quantum chromodynamics (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 Yang and Chen [Phys. Rev. D 104, 034037 (2021)], 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 V, 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.

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Phys. Rev. D 112, 096028– Published 24 November, 2025

Vol. 112, Iss. 9 — 1 November 2025

Received 10 June 2025
Accepted 5 November 2025

DOI: https://doi.org/10.1103/5w6h-xr48

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³.

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Radiative decays of $P$ -wave charmed baryons in the $S U (3)$ flavor $6_{F}$ representation

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Radiative decays of P-wave charmed baryons in the SU(3) flavor 6F representation

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Radiative decays of $P$ -wave charmed baryons in the $S U (3)$ flavor $6_{F}$ representation