Analysis of the vector hidden-charm tetraquark states without explicit P-waves via the QCD sum rules

In the present work, we adopt the scalar, pseudoscalar, vector, axialvector and tensor (anti)diquark operators as the elementary building blocks to construct vector and tensor local four-quark currents without introducing explicit P-waves, and explore the mass spectrum of the vector hidden-charm tet...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Zhi-Gang Wang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/7ae56fc2d2c34190939cda87a38a56e1
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:7ae56fc2d2c34190939cda87a38a56e1
record_format	dspace
spelling	oai:doaj.org-article:7ae56fc2d2c34190939cda87a38a56e12021-12-04T04:32:53ZAnalysis of the vector hidden-charm tetraquark states without explicit P-waves via the QCD sum rules0550-321310.1016/j.nuclphysb.2021.115592https://doaj.org/article/7ae56fc2d2c34190939cda87a38a56e12021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0550321321002893https://doaj.org/toc/0550-3213In the present work, we adopt the scalar, pseudoscalar, vector, axialvector and tensor (anti)diquark operators as the elementary building blocks to construct vector and tensor local four-quark currents without introducing explicit P-waves, and explore the mass spectrum of the vector hidden-charm tetraquark states via the QCD sum rules comprehensively, and revisit the interpretations of the existing Y states in the scenario of vector tetraquark states. We resort to the energy scale formula to enhance the pole contributions and improve the convergent behaviors of the operator product expansion, and we should bear in mind that the predictions are rather sensitive to the particular energy scales which obey the uniform/same constraint. The predicted vector hidden-charm tetraquark states can be confronted to the experimental data in the future.Zhi-Gang WangElsevierarticleNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENNuclear Physics B, Vol 973, Iss , Pp 115592- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Zhi-Gang Wang Analysis of the vector hidden-charm tetraquark states without explicit P-waves via the QCD sum rules
description	In the present work, we adopt the scalar, pseudoscalar, vector, axialvector and tensor (anti)diquark operators as the elementary building blocks to construct vector and tensor local four-quark currents without introducing explicit P-waves, and explore the mass spectrum of the vector hidden-charm tetraquark states via the QCD sum rules comprehensively, and revisit the interpretations of the existing Y states in the scenario of vector tetraquark states. We resort to the energy scale formula to enhance the pole contributions and improve the convergent behaviors of the operator product expansion, and we should bear in mind that the predictions are rather sensitive to the particular energy scales which obey the uniform/same constraint. The predicted vector hidden-charm tetraquark states can be confronted to the experimental data in the future.
format	article
author	Zhi-Gang Wang
author_facet	Zhi-Gang Wang
author_sort	Zhi-Gang Wang
title	Analysis of the vector hidden-charm tetraquark states without explicit P-waves via the QCD sum rules
title_short	Analysis of the vector hidden-charm tetraquark states without explicit P-waves via the QCD sum rules
title_full	Analysis of the vector hidden-charm tetraquark states without explicit P-waves via the QCD sum rules
title_fullStr	Analysis of the vector hidden-charm tetraquark states without explicit P-waves via the QCD sum rules
title_full_unstemmed	Analysis of the vector hidden-charm tetraquark states without explicit P-waves via the QCD sum rules
title_sort	analysis of the vector hidden-charm tetraquark states without explicit p-waves via the qcd sum rules
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/7ae56fc2d2c34190939cda87a38a56e1
work_keys_str_mv	AT zhigangwang analysisofthevectorhiddencharmtetraquarkstateswithoutexplicitpwavesviatheqcdsumrules
_version_	1718373038848737280

Analysis of the vector hidden-charm tetraquark states without explicit P-waves via the QCD sum rules

Ejemplares similares