Published 1986
| Version v1
Report
Open
ππ and KK-bar scattering and scalar mesons
Description
In a two-channel unitarity approximation the use of analytic properties of s- wave ππ and KK-bar scattering amplitudes and certain assumptions on the KK-bar-scattering background allow one to describe the s- wave of the ππ → KK-bar process on the basis of ππ scattering data analysis. A 4-sheet structure of the Riemann surface of the considered amplitudes is taken into account by means of a proper model of this surface uniformizing these amplitudes. The coupling constants of S*(980)-meson with ππ and KK-bar system are evaluated: gππS*/gKK-barS* ∼ 0.5
Availability note (English)
MF available from INIS under the Report Number.Files
18044578.pdf
Files
(284.5 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:7b74c3e067d5ffad71c4714179e93a91
|
284.5 kB | Preview Download |
System files
(40.8 kB)
| Name | Size | Download all |
|---|
Additional details
Additional titles
- Original title (Russian)
- ππ- и KK-бар-рассеяние и скалярные мезоны
Publishing Information
- Imprint Pagination
- 12 p.
- Report number
- JINR-R--2-86-399
INIS
- Country of Publication
- USSR
- Country of Input or Organization
- USSR
- INIS RN
- 18044578
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ANTIKAONS; COUPLING CONSTANTS; ENERGY DEPENDENCE; KAON-KAON INTERACTIONS; PION-PION INTERACTIONS; QUARKS; RIEMANN SHEET; S MATRIX; S WAVES; S-1000 RESONANCES; SCALAR MESONS; SCATTERING AMPLITUDES; UNITARITY
- Descriptors DEC
- AMPLITUDES; ANTIMATTER; ANTIMESONS; ANTIPARTICLES; BOSONS; ELEMENTARY PARTICLES; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; KAONS; MATRICES; MATTER; MESON RESONANCES; MESON-MESON INTERACTIONS; MESONS; PARTIAL WAVES; PARTICLE INTERACTIONS; POSTULATED PARTICLES; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS; RESONANCE PARTICLES; STRANGE PARTICLES
Optional Information
- Notes
- 20 refs.; 4 fifs.