Published 1988
| Version v1
Report
Open
Detection of 1.9 GeV mass exotic meson decaying into the η'η channel
Creators
- 1. Los Alamos National Lab., NM (USA)
- 2. Institut Interuniversitaire des Sciences Nucleaires, Brussels (Belgium)
Description
A meson produced in the charge-exchange π-p-collisions and decaying into η'η has been observed. The experiment has been carried out with the GAMS-2000 spectrometer at the Serpukhov accelerator. The meson mass equals (1917±15) MeV, the width is (90+35)-(90-50) MeV. Its spin-parity is JPC=0++, 1-+ or 2++, isospin and G-parity is IG=0+. The t-dependence of the differential cross section is described by exp(bt) with small slope b=2±1 (GeV/c)2. For the decays through ππ, ηη and KK-bar channels low limits are obtained showing the exotic nature of this meson
Availability note (English)
MF available from INIS under the Report Number.Files
20028281.pdf
Files
(272.2 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:41906895489601fd42635bd2fa91649b
|
272.2 kB | Preview Download |
System files
(20.3 kB)
| Name | Size | Download all |
|---|
Additional details
Additional titles
- Original title (Russian)
- Обнаружение экзотического мезона с массой 1,9 GehV, распадающегося по каналу η'η
Publishing Information
- Imprint Pagination
- 7 p.
- Report number
- IFVE-OEF--88-153
INIS
- Country of Publication
- USSR
- Country of Input or Organization
- USSR
- INIS RN
- 20028281
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANGULAR DISTRIBUTION; BRANCHING RATIO; CHARGE-EXCHANGE INTERACTIONS; DIFFERENTIAL CROSS SECTIONS; ETA MESONS; ETA PRIME-958 MESONS; EXOTIC RESONANCES; EXPERIMENTAL DATA; G PARITY; ISOSPIN; LIMITING VALUES; MASS; MASS SPECTRA; PARTICLE DECAY; PARTICLE PRODUCTION; PARTICLE WIDTHS; PION MINUS-PROTON INTERACTIONS; SPIN; X-1935 MESONS
- Descriptors DEC
- ANGULAR MOMENTUM; BASIC INTERACTIONS; BOSONS; CROSS SECTIONS; DATA; DECAY; DISTRIBUTION; ELEMENTARY PARTICLES; HADRON-HADRON INTERACTIONS; HADRONS; INFORMATION; INTERACTIONS; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; MESONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; PION-NUCLEON INTERACTIONS; PION-PROTON INTERACTIONS; PSEUDOSCALAR MESONS; RESONANCE PARTICLES; SPECTRA; STRONG INTERACTIONS
Optional Information
- Notes
- 16 refs.; 5 figs.; 1 tab.; submitted to the journal Yad. Fiz.