Published July 1987
| Version v1
Report
Further results on narrow states related to anti-pp below threshold
Creators
- 1. Tokyo Metropolitan Univ. (Japan). Dept. of Physics
Description
We have searched for narrow peaks in inclusive γ ray spectra obtained for each charge multiplicity separately. The 4σ upper limit for the yield of p-bar p → γ B with baryonia candidates B decaying into Nch prong states is 0.3 - 0.1 x 10-3 at Eγ = 80 - 938 MeV for each of Nch = 0 and ≥ 6, 0.8 - 0.1 x 10-3 for each of Nch = 2 and 4, and 1.2 - 0.2 x 10-3 for the sum over the charge multiplicity. At 2 to 3σ levels, however, we have observed nine narrow γ ray peaks with individual yields between 10-4 to 10-3 for various charge multiplicities. (author)
Additional details
Additional titles
- Subtitle (English)
- Search for narrow states with various decay topologies
Publishing Information
- Imprint Title
- Proceedings of the second international conference on hadron spectroscopy
- Imprint Pagination
- 510 p.
- Journal Page Range
- p. 117-126.
- Report number
- KEK--87-7
Conference
- Title
- 2. international conference on hadron spectroscopy.
- Dates
- 16-18 Apr 1987.
- Place
- Oho, Ibaraki (Japan).
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 19043599
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- ANNIHILATION; BARYONIUM; EXPERIMENTAL DATA; GAMMA SPECTRA; INCLUSIVE INTERACTIONS; MULTIPLE PRODUCTION; MULTIPLICITY; PROTON-ANTIPROTON INTERACTIONS
- Descriptors DEC
- BARYON-BARYON INTERACTIONS; BOSONS; DATA; ELEMENTARY PARTICLES; HADRON-HADRON INTERACTIONS; HADRONS; INFORMATION; INTERACTIONS; MESONS; NUCLEON-ANTINUCLEON INTERACTIO; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; SPECTRA