Work

Investigating charmed hybrid baryons via QCD sum rules

Year: 2025

Type: article

Abstract: We investigate charmed hybrid baryons using the QCD sum rule method within the framework of heavy quark effective theory. We construct 28 interpolating currents for charmed hybrid baryons, seven of which are employed in QCD sum rule analyses of 19 states with quark-gluon configurations q q c g , q s c g , and s s c g ( q = u / d ). The masses of the lowest-lying charmed hybrid baryons in the S U ( 3 ) flavor 6 F representation are calculated to be M Σ c g ( 1 / 2 + ) = 3.3 6 − 0.26 + 0.27 GeV , M Ξ c g ′ ( 1 / 2 + ) = 3.59 ± 0.20 GeV , and M Ω c g ( 1 / 2 + ) = 3.82 ± 0.21 GeV . We propose that future experiments search for these states via their P -wave decay channels N D ( * ) , Λ D ( * ) , and Ξ D ( * ) , respectively. Such investigations would provide valuable insight into the role of gluonic excitations in hadron structure.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/4hvc-ntkg

Authors: Hui-Min Yang, Xuan Luo, Hua-Xing Chen, Wei Chen

Institutions: Peking University, Southeast University, Sun Yat-sen University, Institute of Modern Physics

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: National Natural Science Foundation of China, China Postdoctoral Science Foundation, Fundamental Research Funds for the Central Universities

Awards: G2922008647, G4655888275, G7452539093