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- Title
Study of d∗(2380) resonance in a chiral constituent quark model.
- Authors
Dong, Yubing; Shen, Pengnian; Huang, Fei; Zhang, Zongye
- Abstract
Studies on newly observed dibaryon resonance d ∗ (2 3 8 0) (I (J P) = 0 (3 +)) with a compact structure in recent years are reviewed. In terms of a dynamical calculation with a chiral constituent quark model by using Resonating Group Method, the general characteristics of this resonance, like its mass, binding energy, root-mean-square radius, as well as, its strong double pion decays of d ∗ (2 3 8 0) → d π π and d ∗ (2 3 8 0) → p n π π , its strong single pion decays of d ∗ (2 3 8 0) → p n π , and its electromagnetic form factors, are given and compared with the experimental data. It is shown that the compact hexaquark dominant structure might be a reasonable interpretation for this dibaryon resonance and the charge distribution might be a new observable to judge different theoretical assumptions for its structure. Moreover, possible experimental tests are also discussed briefly.
- Subjects
QUARKS; DIBARYON; CHIRALITY; STANDARD deviations; PHYSICS experiments
- Publication
International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics, 2018, Vol 33, Issue 33, pN.PAG
- ISSN
0217-751X
- Publication type
Article
- DOI
10.1142/S0217751X18300314