Published April 20, 1987
| Version v1
Journal article
Determination of the ratio σ(anti pn)/σ(anti pp) from anti p4He reaction data
Creators
- Balestra, F.1, 2
- Bussa, M.P.1, 2
- Busso, L.1, 2
- Fava, L.1, 2
- Ferrero, L.1, 2
- Panzieri, D.1, 2
- Piragino, G.1, 2
- Tosello, F.1, 2
- Bendiscioli, G.3, 4
- Rotondi, A.3, 4
- Salvini, P.3, 4
- Zenoni, A.3, 4
- Guaraldo, C.5
- Maggiora, A.5
- Batusov, Yu.A.6
- Falomkin, I.V.6
- Nichitiu, F.6
- Pontecorvo, G.B.6
- Lodi Rizzini, E.3, 7
- 1. Istituto Nazionale di Fisica Nucleare, Turin (Italy)
- 2. Turin Univ. (Italy). Ist. di Fisica Generale
- 3. Istituto Nazionale di Fisica Nucleare, Pavia (Italy)
- 4. Pavia Univ. (Italy). Dipartimento di Fisica Nucleare e Teorica
- 5. Istituto Nazionale di Fisica Nucleare, Frascati (Italy). Lab. Nazionale di Frascati
- 6. Joint Inst. for Nuclear Research, Dubna (USSR)
- 7. Brescia Univ. (Italy). Dipartimento di Automazione Industriale
Description
The ratio Rba between the cross sections for the annihilation of anti p on n and on p bound in the 4He nucleus at four anti p momenta (at rest, 192.8, 306.2 and 607.7 MeV/c) has been obtained by the analysis of anti p4He annihilation events detected with a self-shunted streamer chamber exposed to the LEAR anti p beams. Rba increases from 0.42±0.05 at rest up to 0.66±0.09 at 607.7 MeV/c. The results are discussed in the light of Glauber theory analyses of anti p2He and anti p-nucleus data. (orig.)
Additional details
Publishing Information
- Journal Title
- Nucl. Phys., A
- Journal Volume
- 465
- Journal Issue
- 4
- Series
- Nucl. Phys., A.
- Journal Page Range
- 714-732
- ISSN
- 0375-9474
- CODEN
- NUPAB
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 18071631
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANNIHILATION; ANTIPROTON REACTIONS; ANTIPROTON-NEUTRON INTERACTION; BREAKUP REACTIONS; CHARGED PARTICLES; ENERGY DEPENDENCE; EXPERIMENTAL DATA; HELIUM 4 TARGET; INTEGRAL CROSS SECTIONS; MEV RANGE 10-100; MEV RANGE 100-1000; MULTIPLICITY; NEUTRONS; NUCLEON-ANTINUCLEON INTERACTIO; PIONIZATION; PIONS MINUS; PIONS NEUTRAL; PIONS PLUS; PROTON-ANTIPROTON INTERACTIONS; PROTONS
- Descriptors DEC
- ANTIMATTER; ANTIMESONS; ANTINUCLEON REACTIONS; ANTIPARTICLES; BARYON REACTIONS; BARYON-BARYON INTERACTIONS; BARYONS; BOSONS; CATIONS; CROSS SECTIONS; DATA; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRON REACTIONS; HADRON-HADRON INTERACTIONS; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INFORMATION; INTERACTIONS; IONS; MATTER; MESONS; MEV RANGE; MULTIPLE PRODUCTION; NUCLEAR REACTIONS; NUCLEON REACTIONS; NUCLEONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PIONS; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS; TARGETS