QCD sum rule study of <i>J</i> <SUP> <i>P</i> </SUP>=1<SUP>±</SUP> exotic states with two heavy quarks in the molecular picture
CHINESE PHYSICS C, vol.48, no.6, 2024 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 48 Issue: 6
- Publication Date: 2024
- Doi Number: 10.1088/1674-1137/ad305f
- Journal Name: CHINESE PHYSICS C
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, INSPEC
- Keywords: exotic mesons, molecular states, QCD sum rules
- Middle East Technical University Affiliated: Yes
Abstract
In this study, the spectroscopic parameters of exotic molecular states composed of mesons containing two heavy quarks (scalar - axial and pseudoscalar - axial meson combinations) are investigated within the QCD sum rules. Our findings reveal that molecular states containing charm quarks do not form bound states, whereas states with b-quarks can form exotic molecular states. This observation has significant implications for understanding the structure of these exotic states.