Electromagnetic polarizabilities of the spin-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mfrac><mml:mn>1</mml:mn><mml:mn>2</mml:mn></mml:mfrac></mml:math> singly heavy baryons in heavy baryon chiral perturbation the
We calculate the electromagnetic polarizabilities of the spin-<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mfrac><a:mn>1</a:mn><a:mn>2</a:mn></a:mfrac></a:math> singly heavy baryons in the heavy baryon chiral perturbation theory up to <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mi mathvariant="script">O</c:mi><c:mo stretchy="false">(</c:mo><c:msup><c:mi>p</c:mi><c:mn>3</c:mn></c:msup><c:mo stretchy="false">)</c:mo></c:math>. We estimate the low-energy constants using the magnetic moments of singly charmed baryons from lattice QCD simulations and the experimental decay widths of <h:math xmlns:h="http://www.w3.org/1998/Math/MathML" display="inline"><h:msub><h:mi mathvariant="normal">Σ</h:mi><h:mi>c</h:mi></h:msub></h:math> and <k:math xmlns:k="http://www.w3.org/1998/Math/MathML" display="inline"><k:msubsup><k:mi mathvariant="normal">Σ</k:mi><k:mi>c</k:mi><k:mo>*</k:mo></k:msubsup></k:math>. Our results indicate that the long-range chiral corrections make significant contributions to the polarizabilities. Additionally, the magnetic dipole transitions <n:math xmlns:n="http://www.w3.org/1998/Math/MathML" display="inline"><n:msubsup><n:mi mathvariant="script">B</n:mi><n:mn>6</n:mn><n:mo>*</n:mo></n:msubsup><n:mo stretchy="false">→</n:mo><n:msub><n:mi mathvariant="script">B</n:mi><n:mn>6</n:mn></n:msub><n:mo>+</n:mo><n:mi>γ</n:mi></n:math> also provide large contribution to the magnetic polarizabilities.
Authors
- Lu Meng (ORCID: https://orcid.org/0000-0001-9791-7138)
- Shi-Lin Zhu (ORCID: https://orcid.org/0000-0002-4055-6906)
- Yan-Ke Chen (ORCID: https://orcid.org/0000-0002-9984-163X)
- L. Wen (ORCID: https://orcid.org/0009-0006-8266-5840)
Institutions
- Peking University (CN)
- Ruhr University Bochum (DE)
Publication Details
- Journal
- Physical review. D/Physical review. D.
- Published
- 2025-03-17
- DOI
- https://doi.org/10.1103/physrevd.111.054019
- Citations
- 2
- Primary Topic
- Quantum Chromodynamics and Particle Interactions
- Type
- article
- Field-Weighted Citation Impact
- 3.74
Funders
- National Natural Science Foundation of China
- European Research Council