Study of the branching ratio of {psi}(3770){yields}DD in e{sup +}e{sup -{yields}}DD scattering

Journal Article · Fri Jan 01 00:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.011501· OSTI ID:21408938

Haibo, Li; Xiaoshuai, Qin; Maozhi, Yang ^[1]

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1. Institute of High Energy Physics, P.O. Box 918, Beijing 100049 (China)

Based on the data of BES and Belle, the production of DD in the e{sup +}e{sup -{yields}}DD scattering process is studied in this paper. We analyze the continuum and resonant contributions in the energy region from 3.7 to 4.4 GeV. In the {chi}{sup 2} fit to data, we obtain the resonance parameters of {psi}(3770), the branching ratio of {psi}(3770){yields}DD decay by confronting the data to the theoretical formula where both the contributions of the resonances, continuum and interference effects are included. We obtain the branching ratio of {psi}(3770){yields}DD decay is 97.2%{+-}8.9%, as well as the branching ratio of {psi}(4040), {psi}(4160){yields}DD decays.

• OSTI ID: 21408938
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 1; Other Information: DOI: 10.1103/PhysRevD.81.011501; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
ELECTRON-POSITRON COLLISIONS
ELECTRONS
GEV RANGE 01-10
INTERFERENCE
PARTICLE DECAY
POSITRONS
PSI-3770 MESONS
PSI-4040 MESONS
PSI-4160 MESONS
RESONANCE
SCATTERING
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BOSONS
CHARMONIUM
COLLISIONS
DECAY
DIMENSIONLESS NUMBERS
ELECTRON COLLISIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
HADRONS
LEPTONS
MATTER
MESONS
POSITRON COLLISIONS
QUARKONIUM
VECTOR MESONS