X(3872): a - molecule with attractive diquarks

✍ Scribed by Sachiko Takeuchi; V.E. Lyubovitskij; Th. Gutsche; Amand Faessler

• Book ID: 104069738
• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 163 KB
• Volume: 790
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/j.nuclphysa.2007.03.085

✦ Synopsis

The qqcc systems are investigated by a quark model with the quark correlation, which has successfully described baryon and meson mass spectra. The results show that there can be a bound state of qqcc isospin 1, J P C = 1 ++ . This state is considered as a coupled state of the J/ψ-ρ and D-D * molecules. The size of the DD * component is smaller because the quark interaction is more attractive. We argue that this state can be X(3872).