Year: 2007
Type: article
Abstract: We study the light scalar mesons in the QCD sum rule. We find that there are five independent scalar tetraquark currents in the local form, and we perform QCD sum rule analysis using both these currents and their combinations. Compared with the sum rules by conventional ̄q q currents, our result supports a tetraquark structure for low-lying scalar mesons.
DOI: 10.1143/ptps.168.186
Authors: Hua-Xing Chen, Atsushi Hosaka, Shi-Lin Zhu
Institutions: Peking University, The University of Osaka
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2013510262