Published August 2015 | Version v1
Journal article Metadata-only

Zc(4200)+ decay width as a charmonium-like tetraquark state

Creators

  • 1. University of Saskatchewan, Department of Physics and Engineering Physics, Saskatoon, SK (Canada)
  • 2. Beihang University, School of Physics and Nuclear Energy Engineering and International Research Center for Nuclei and Particles in the Cosmos, Beijing (China)
  • 3. Peking University, Center of High Energy Physics, Beijing (China)
  • 4. Collaborative Innovation Center of Quantum Matter, Beijing (China)
  • 5. Peking University, School of Physics and State Key Laboratory of Nuclear Physics and Technology, Beijing (China)

Description

To identify the nature of the newly observed charged resonance Zc(4200)+, we study its hadronic decays Zc(4200)+ → J/ψπ+, Zc(4200)+ @→ ηcρ+ and Zc(4200)+ → D+ anti D*0 as a charmonium-like tetraquark state. In the framework of the QCD sum rules, we calculate the three-point functions and extract the coupling constants and decay widths for these interaction vertices. Including all these channels, the full decay width of the Zc(4200)+ state is consistent with the experimental value reported by the Belle Collaboration, supporting the tetraquark interpretation of this state. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epjc/s10052-015-3578-3

Additional details

Identifiers

DOI
10.1140/epjc/s10052-015-3578-3;

Publishing Information

Journal Title
European Physical Journal. C, Particles and Fields (Online)
Journal Volume
75
Journal Issue
8
Journal Page Range
p. 1-9
ISSN
1434-6052

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
46116864
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
AXIAL VECTOR MESONS; CHARMONIUM; CORRELATION FUNCTIONS; COUPLING CONSTANTS; EXOTIC RESONANCES; FEYNMAN DIAGRAM; FOUR-BODY PROBLEM; HADRONIC PARTICLE DECAY; PARTICLE STRUCTURE; PARTICLE WIDTHS; QUANTUM CHROMODYNAMICS; SUM RULES; THEORETICAL DATA
Descriptors DEC
BOSONS; DATA; DECAY; DIAGRAMS; ELEMENTARY PARTICLES; EQUATIONS; FIELD THEORIES; FUNCTIONS; HADRONS; INFORMATION; MANY-BODY PROBLEM; MESONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; QUARKONIUM; RESONANCE PARTICLES