Effective-Range-Expansion Study of Near Threshold Heavy-Flavor Resonances. (16th June 2019)

• Record Type: Journal Article
• Authors: Gao, Rui; Guo, Zhi-Hui; Kang, Xian-Wei; Oller, J. A.
• Other Names: Bilki Burak Academic Editor.
• Is Part Of: Advances in high energy physics. Volume 2019(2019)
• Publication Date: 2019-06-16
• Subjects: Particles (Nuclear physics) -- Periodicals; Particles (Nuclear physics); Periodicals; 539.76
• DOI: 10.1155/2019/4651908
• Languages: English
• ISSNs: 1687-7357

Abstract

Abstract : In this work, we study the resonances near the thresholds of the open heavy-flavor hadrons using the effective-range-expansion method. The unitarity, analyticity, and compositeness coefficient are also taken into account in our theoretical formalism. We consider theZ c ( 3900 ), X ( 4020 ), χ c 1 ( 4140 ), ψ ( 4260 ), andψ ( 4660 ) . The scattering lengths and effective ranges from the relevant elasticS -wave scattering amplitudes are determined. Tentative discussions on the inner structures of the aforementioned resonances are given.