Magnetic moments of the spin-32 doubly heavy baryons

• Published in: The European physical journal. C, Particles and fields Vol. 77; no. 12
• Main Authors: Meng, Lu, Li, Hao-Song, Liu, Zhan-Wei, Zhu, Shi-Lin
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2017
• Subjects: Astronomy; Astrophysics and Cosmology; Elementary Particles; Hadrons; Heavy Ions; Measurement Science and Instrumentation; Nuclear Energy; Nuclear Physics; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Regular Article - Theoretical Physics; String Theory
• ISSN: 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-017-5447-8

In this work, we investigate the chiral corrections to the magnetic moments of the spin- 3 2 doubly charmed baryons systematically up to next-to-next-to-leading order with the heavy baryon chiral perturbation theory. The numerical results are given up to next-to-leading order: μ Ξ cc ∗ + + = 2.61 μ N , μ Ξ cc ∗ + = - 0.18 μ N , μ Ω cc ∗ + = 0.17 μ N . As a by-product, we have also calculated the magnetic moments of the spin- 3 2 doubly bottom baryons and charmed bottom baryons: μ Ξ bb ∗ 0 = 2.83 μ N , μ Ξ bb ∗ - = - 1.33 μ N , μ Ω bb ∗ - = - 1.54 μ N , μ Ξ bc ∗ + = 3.22 μ N , μ Ξ bc ∗ 0 = - 0.84 μ N , μ Ω bc ∗ 0 = - 1.09 μ N .