Analysis of the vector tetraquark states with P-waves between the diquarks and antidiquarks via the QCD sum rules

In this article, we introduce a P-wave between the diquark and antidiquark explicitly to construct the vector tetraquark currents, and study the vector tetraquark states with the QCD sum rules systematically, and obtain the lowest vector tetraquark masses up to now. The present predictions support a...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2019, Vol.79 (1), p.1-9, Article 29
Main Author: Wang, Zhi-Gang
Format: Article
Language:English
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
Sum rules
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Summary:In this article, we introduce a P-wave between the diquark and antidiquark explicitly to construct the vector tetraquark currents, and study the vector tetraquark states with the QCD sum rules systematically, and obtain the lowest vector tetraquark masses up to now. The present predictions support assigning the Y (4220 / 4260), Y (4320 / 4360), Y (4390) and Z (4250) to be the vector tetraquark states with a relative P-wave between the diquark and antidiquark pair.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-019-6568-z