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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Veröffentlicht in:	The European physical journal. C, Particles and fields Particles and fields, 2019, Vol.79 (1), p.1-9, Article 29
1. Verfasser:	Wang, Zhi-Gang
Format:	Artikel
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	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