Possible open-charmed pentaquark molecule Ωc(3188) – the DΞ bound state – in the Bethe–Salpeter formalism

We study the S -wave D Ξ bound state in the Bethe–Salpeter formalism in the ladder and instantaneous approximations. With the kernel generated by the hadronic effective Lagrangian, two open-charmed bound states, which quantum numbers are I = 0 ,  J P = ( 1 2 ) - and I = 1 ,  J P = ( 1 2 ) - , respec...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2018-05, Vol.78 (5), p.1-8
Main Authors: Wang, Chao, Liu, Liang-Liang, Kang, Xian-Wei, Guo, Xin-Heng, Wang, Rui-Wu
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Charm (particle physics)
Elementary Particles
Formalism
Hadrons
Heavy Ions
Measurement Science and Instrumentation
Molecular chains
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum numbers
Regular Article - Theoretical Physics
String Theory
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Summary:We study the S -wave D Ξ bound state in the Bethe–Salpeter formalism in the ladder and instantaneous approximations. With the kernel generated by the hadronic effective Lagrangian, two open-charmed bound states, which quantum numbers are I = 0 ,  J P = ( 1 2 ) - and I = 1 ,  J P = ( 1 2 ) - , respectively, are predicted as new candidates of hadronic pentaquark molecules in our formalism. If existing, they could contribute to the broad 3188 MeV structure near the five new narrow Ω c states observed recently by the LHCb Collaboration.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-018-5874-1