Towards the decay properties of deuteron-like state dNΩ

Recent lattice QCD calculations showed that a dNΩ similar to the deuteron with baryon number B = 2 and with a small binding energy might exist. In this work we propose a hadronic molecular approach to study the dynamical properties of this exotic state. We employed a phenomenological Lagrangian appr...

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Bibliographic Details
Published in:Physical review. D 2020-06, Vol.101 (11), p.1
Main Authors: Xiao, Cheng-Jian, Dong, Yu-Bing, Gutsche, Thomas, Lyubovitskij, Valery E, Chen, Dian-Yong
Format: Article
Language:English
Subjects:
Coupling (molecular)
Decay rate
Deuterons
Hadrons
Heavy ions
Quantum chromodynamics
Quarks
Relativistic Heavy Ion Collider
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Summary:Recent lattice QCD calculations showed that a dNΩ similar to the deuteron with baryon number B = 2 and with a small binding energy might exist. In this work we propose a hadronic molecular approach to study the dynamical properties of this exotic state. We employed a phenomenological Lagrangian approach to describe the coupling of the dNΩ to its constituents and the strong decays into conventional hadrons, dNΩ → ΛΞ and dNΩ → ΣΞ. Predictions for the sum of the decay rates are in the range of a few hundred keV. In addition, we find that the dNΩ → ΛΞ mode is dominant, preferably searched for in a future Relativistic Heavy Ion Collider (RHIC) experiment.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.101.114032