Dispersive analysis on the f{sub 0}(600) and f{sub 0}(980) resonances in {gamma}{gamma}{yields}{pi}{sup +}{pi}{sup -}, {pi}{sup 0}{pi}{sup 0} processes
Journal Article
·
· Physical Review. D, Particles Fields
- Department of Physics, Peking University, Beijing 100871 (China)
- Department of Physics, Southeast University, Nanjing 211189 (China)
We estimate the diphoton coupling of f{sub 0}(600), f{sub 0}(980), and f{sub 2}(1270) resonances in a coupled channel dispersive approach. The f{sub 0}(600) diphoton coupling is also reinvestigated using a single channel T matrix for {pi}{pi} scattering with better analyticity property, and it is found to be significantly smaller than that of a qq state. Especially we also estimate the diphoton coupling of the third-sheet pole located near KK threshold, denoted as f{sub 0}{sup III}(980). It is argued that this third-sheet pole may be originated from a coupled channel Breit-Wigner description of the f{sub 0}(980) resonance.
- OSTI ID:
- 21300904
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 79; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Shape of the f{sub 0}(980) in {gamma}{gamma}{yields}{pi}{sup +}{pi}{sup -}
Dynamics of f{sub 0}(980)-resonance production in the reaction {gamma}{gamma} {sup {yields}} {pi}{sup +}{pi}{sup -}
S-wave {gamma}{gamma}{yields}{pi}{pi} and f{sub 0}(980){yields}{pi}{pi}
Journal Article
·
Fri Jul 01 00:00:00 EDT 2005
· Physical Review. D, Particles Fields
·
OSTI ID:20711039
Dynamics of f{sub 0}(980)-resonance production in the reaction {gamma}{gamma} {sup {yields}} {pi}{sup +}{pi}{sup -}
Journal Article
·
Fri Sep 15 00:00:00 EDT 2006
· Physics of Atomic Nuclei
·
OSTI ID:21075985
S-wave {gamma}{gamma}{yields}{pi}{pi} and f{sub 0}(980){yields}{pi}{pi}
Journal Article
·
Sun Aug 31 00:00:00 EDT 2008
· AIP Conference Proceedings
·
OSTI ID:21149158