Work

Electromagnetic polarizabilities of the spin- 1 2 singly heavy baryons in heavy baryon chiral perturbation theory

Year: 2025

Type: article

Abstract: We calculate the electromagnetic polarizabilities of the spin- 1 2 singly heavy baryons in the heavy baryon chiral perturbation theory up to O ( p 3 ) . We estimate the low-energy constants using the magnetic moments of singly charmed baryons from lattice QCD simulations and the experimental decay widths of Σ c and Σ c * . Our results indicate that the long-range chiral corrections make significant contributions to the polarizabilities. Additionally, the magnetic dipole transitions B 6 * → B 6 + γ also provide large contribution to the magnetic polarizabilities.

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

DOI: 10.1103/physrevd.111.054019

Authors: Yan-Ke Chen, Liang-Zhen Wen, Lu Meng, Shi-Lin Zhu

Institutions: Peking University, Ruhr University Bochum

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, Peking University, European Research Council

Awards: G2108877040, G6555012630