Published July 2016 | Version v1
Journal article Metadata-only

Study of the rare decay J/ψ→e+e-ϕ

Creators

  • 1. School of Physics, Nankai University, Tianjin (China)
  • 2. Institute of High Energy Physics and Theoretical Physics Center for Science Facilities,Chinese Academy of Sciences, Beijing (China)
  • 3. Department of Physics, Tianjin University, Tianjin (China)

Description

We study the decay process of J/ψ → e+e-ϕ where the relatively clean electromagnetic (EM) transitions appear at leading order at tree level while the hadronic contributions only emerge via hadronic loop transitions. We include the low-lying scalar f0(980) and pseudoscalar η/η' as the dominant contributions in the evaluation of the hadronic loop contributions. It is found that the hadronic effects are negligible compared with the EM contributions. The decay width of J/ψ → e+e-ϕ is determined to be about 2.12 × 10-6 keV if there is no other leading mechanism contributing. This result will be tested by the BESIII experiment with a large J/ψ data sample. (authors)

Additional details

Identifiers

DOI
10.1088/1674-1137/40/7/073104;

Publishing Information

Journal Title
Chinese Physics. C, High Energy Physics and Nuclear Physics
Journal Volume
40
Journal Issue
7
Journal Page Range
[4 p.]
ISSN
1674-1137

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
52020262
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
COMPARATIVE EVALUATIONS; DECAY; ELECTRONS; F0-980 MESONS; KEV RANGE; PSEUDOSCALARS; SCALARS; WIDTH
Descriptors DEC
BOSONS; DIMENSIONS; ELEMENTARY PARTICLES; ENERGY RANGE; EVALUATION; FERMIONS; HADRONS; LEPTONS; MESONS; SCALAR MESONS

Optional Information

Notes
2 figs., 1 tab., 9 refs.; http://dx.doi.org/10.1088/1674-1137/40/7/073104