Published December 5, 1977
| Version v1
Journal article
Evidence for a narrow width boson of mass 2.95 GeV
Creators
- Evangelista, C.1
- Ghidini, B.1
- Palano, A.1
- Picciarelli, V.1
- Zito, G.1
- Maettig, P.2
- Mueller, K.2
- Paul, E.2
- Ruehmer, W.2
- French, B.R.3
- Mitaroff, W.A.3
- Palazzi-Cerrina, C.3
- Strub, R.3
- Thompson, A.S.3
- Woodworth, P.L.3
- Edwards, M.4
- Armstrong, T.5
- Gordon, J.5
- Hughes, I.S.5
- Lewis, G.M.5
- Turnbull, R.M.5
- Best, C.6
- Donald, R.A.6
- Edwards, D.N.6
- Houlden, M.A.6
- Costa, G.7
- Mandelli, L.7
- Pensotti, S.7
- Perini, L.7
- Miller, D.H.8
- Lambacher, H.D.9
- 1. Bari Univ. (Italy). Istituto di Fisica
- 2. Bonn Univ. (Germany, F.R.). Physikalisches Inst.
- 3. European Organization for Nuclear Research, Geneva (Switzerland)
- 4. Science Research Council, Daresbury (UK). Daresbury Lab.
- 5. Glasgow Univ. (UK)
- 6. Liverpool Univ. (UK)
- 7. Milan Univ. (Italy). Istituto di Fisica
- 8. Purdue Univ., Lafayette, Ind. (USA)
- 9. Oesterreichische Akademie der Wissenschaften, Vienna. Inst. fuer Hochenergiephysik
Description
In a search for resonances coupled to the anti ppπ- system, the authors have studied π-p interactions at 16 GeV/c giving a forward antiproton, using the Omega spectrometer at CERN. In the final states involving a anti p, p and π- a 5.6 (6.3) standard deviation enhancement in the anti ppπ- mass spectrum at (2.95 +- 0.01) GeV with a width consistent with the resolution (sigma = 15 MeV) is observed. The production cross section X branching ratio is estimated to be of the order 1 μb. The data are consistent with a resonance decaying partly via intermediate anti pp final states. (Auth.)
Additional details
Identifiers
Publishing Information
- Journal Title
- Physics Letters B
- Journal Volume
- 72
- Journal Issue
- 1
- Series
- Phys. Lett., B.
- Journal Page Range
- 139-143
- ISSN
- 0370-2693
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 9372519
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Is Lead record
- Yes
- Descriptors DEI
- ANTIPROTONS; BOSONS; BRANCHING RATIO; CROSS SECTIONS; EFFECTIVE MASS; GEV RANGE 10-100; MASS SPECTRA; PION MINUS-PROTON INTERACTIONS; PIONS MINUS; RESONANCE PARTICLES
- Descriptors DEC
- ANTIBARYONS; ANTIMATTER; ANTIMESONS; ANTINUCLEI; ANTINUCLEONS; ANTIPARTICLES; BARYONS; CATIONS; CHARGED PARTICLES; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRON-HADRON INTERACTIONS; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INTERACTIONS; IONS; MASS; MATTER; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; MESONS; NUCLEI; NUCLEONS; PARTICLE INTERACTIONS; PION-NUCLEON INTERACTIONS; PION-PROTON INTERACTIONS; PIONS; PROTONS; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS; SPECTRA
Optional Information
- Notes
- Updated automatically by Metadata and Full-Text Enrichment Agent