Published October 2006 | Version v1
Journal article Metadata-only

Study on strong decays of DsJ (2632)

Creators

  • 1. Nankai Univ., Tianjin (China). Dept. of Physics
  • 2. Graduate Univ. of Chinese Academy of Sciences, Beijing (China). Dept. of Physics
  • 3. Beijing Normal Univ., Beijing (China). Inst. of Low Energy Nuclear Physics
  • 4. Zhejiang Univ., Hangzhou (China). Inst. of Modern Physics
  • 5. Chinese Academy of Sciences, Beijing (China). Inst. of High Energy Physics
  • 6. Harbin Inst. of Technology, Harbin (China). Dept. of Physics

Description

The resonance DsJ(2632) observed by SELEX, has attracted great interests and meanwhile brought up serious dispute. Its spin-parity, so far has not finally determined and if it exists, its quark-structure might be exotic. Following the previous literature where DsJ(2632) is assumed to be a radial-excited state of 1-, we consider the possibilities that it might be a qq-bar ground state of 2+ or the first radial-excited state of 0+ DsJ(2317) and re-calculate its strong decay widths in terms of the Bethe-Salpeter equation. Our results indicate that there still is a sharp discrepancy between the theoretical evaluation and data. (authors)

Additional details

Publishing Information

Journal Title
High Energy Physics and Nuclear Physics
Journal Volume
30
Journal Issue
10
Journal Page Range
p. 936-943
ISSN
0254-3052

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
38080057
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
BETHE-SALPETER EQUATION; CHARMED MESONS; DECAY; EVALUATION; EXCITED STATES; GROUND STATES; PARITY; QUARKS; RESONANCE; SPIN; WIDTH
Descriptors DEC
ANGULAR MOMENTUM; BOSONS; CHARM PARTICLES; DIMENSIONS; ELEMENTARY PARTICLES; ENERGY LEVELS; EQUATIONS; FERMIONS; HADRONS; MESONS; PARTICLE PROPERTIES

Optional Information

Notes
3 figs., 18 refs.