Published June 2004 | Version v1
Journal article Metadata-only

N-pole effect in studying N* via J/Ψ→N(anti N)M decays

Creators

  • 1. Chinese Academy of Sciences, Beijing (China). Inst. of High Energy Physics
  • 2. Guangxi Normal Univ., Guilin (China). Dept. of Physics
  • 3. National Laboratory of Heavy Ion Accelerator of Lanzhou (China). Center of Theoretical Nuclear Physics

Description

N-pole contributions, especially due to off-shell effect, in J/Ψ→N(anti N)M decays are carefully studied. It is found that the decay width is sensitive to the form factor. The N-pole contribution as a background is important in the J/Ψ→N(anti N)π decay, ignorable in the J/Ψ→N(anti N)η and N(anti N)η' decays, and sizable in the J/Ψ→N(anti N)ω decay. (author)

Additional details

Publishing Information

Journal Title
Nuclear Physics Review
Journal Volume
21
Journal Issue
2
Journal Page Range
p. 96-98, 169
ISSN
1007-4627

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
36072013
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ANTINUCLEONS; EXCITED STATES; FEYNMAN DIAGRAM; FORM FACTORS; J PSI-3097 MESONS; MESONS; NUCLEONS; PARTICLE DECAY; PARTICLE WIDTHS
Descriptors DEC
ANTIBARYONS; ANTIMATTER; ANTIPARTICLES; BARYONS; BOSONS; CHARMONIUM; DECAY; DIAGRAMS; ELEMENTARY PARTICLES; ENERGY LEVELS; FERMIONS; HADRONS; INFORMATION; MATTER; MESONS; NUCLEONS; PARTICLE PROPERTIES; QUARKONIUM; VECTOR MESONS

Optional Information

Notes
1 fig., 1 tab., 7 refs.