Few-Body Systems

, 60:26 | Cite as

Spectrum of Light- and Heavy-Baryons

  • S.-X. Qin
  • C. D. RobertsEmail author
  • S. M. Schmidt
Part of the following topical collections:
  1. Ludwig Faddeev Memorial Issue


A symmetry-preserving truncation of the strong-interaction bound-state equations is used to calculate the spectrum of ground-state \(J=1/2^+\), \(3/2^+\) \((qq^\prime q^{\prime \prime })\)-baryons, where \(q, q^\prime , q^{\prime \prime } \in \{u,d,s,c,b\}\), their first positive-parity excitations and parity partners. Using two parameters, a description of the known spectrum of 39 such states is obtained, with a mean-absolute-relative-difference between calculation and experiment of 3.6(2.7)%. From this foundation, the framework is subsequently used to predict the masses of 90 states not yet seen empirically.



We are grateful for constructive comments and encouragement from L. Chang, C. Chen, Z.-F. Cui, R. Gothe, V. Mokeev, J. Segovia, S.-S. Xu and P.-L. Yin; and for the hospitality of RWTH Aachen University, III. Physikalisches Institut B, Aachen, Germany. Work supported by: National Natural Science Foundation of China (NSFC) under Grant Nos. 11805024 and 11847301. Fundamental Research Funds for the Central Universities (China) under Grant No. 2019CDJDWL0005; Jiangsu Province Hundred Talents Plan for Professionals; U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357; and Forschungszentrum Jülich GmbH.


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Authors and Affiliations

  1. 1.Department of PhysicsChongqing UniversityChongqingPeople’s Republic of China
  2. 2.Argonne National LaboratoryLemontUSA
  3. 3.Institute for Advanced SimulationForschungszentrum Jülich and JARAJülichGermany

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