Published July 23, 1984
| Version v1
Journal article
Production of charged pions in intermediate-energy heavy-ion collisions
Creators
- Bernard, V.1
- Girard, J.1
- Julien, J.1
- Legrain, R.1
- Poitou, J.1
- Oskarsson, A.2
- Carlen, L.2
- Gustafsson, H.A.2
- Jakobsson, B.2
- Kristiansson, P.2
- Noren, B.2
- Otterlund, I.2
- Ryde, H.2
- Johansson, T.3
- Tibell, G.3
- Bertholet, R.4
- Guet, C.4
- Maurel, M.4
- Nifenecker, H.4
- Perrin, P.4
- Schussler, F.4
- Buenerd, M.5
- Lebrun, D.5
- Martin, P.5
- Loevhoeiden, G.6
- Bondorf, J.P.7
- Nielsen, O.B.7
- Palmeri, A.8
- 1. CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)
- 2. Lund Univ. (Sweden). Fysiska Institutionen
- 3. Uppsala Univ. (Sweden). Gustaf Werner Inst.
- 4. CEA Centre d'Etudes Nucleaires de Grenoble, 38 (France)
- 5. Grenoble-1 Univ., 38 (France). Inst. des Sciences Nucleaires
- 6. Bergen Univ. (Norway). Inst. of Physics
- 7. Niels Bohr Inst., Copenhagen (Denmark)
- 8. Istituto Nazionale di Fisica Nucleare, Catania (Italy)
Description
Cross sections for the production of π+ and π- have been measured over a wide range of angles for 12C+7Li, 12C+12C and 12C+208Pb collisions at 60A, 75A and 85A MeV. Energy distributions are less steep and absolute yields of pions larger than expected from a straightforward Fermi gas nucleon-nucleon scattering prescription. The apparent velocity of the system in which the π+ emission is symmetric, is closer to the nucleus-nucleus c.m. velocity than to the mean speed system. The Coulomb-corrected π-/π+ ratio is close to unity for 12C+12C. The corresponding ratio for 12C+208Pb is, however, much larger than expected from the neutron excess in 208Pb only. (orig.)
Additional details
Publishing Information
- Journal Title
- Nucl. Phys., A
- Journal Volume
- 423
- Journal Issue
- 3
- Series
- CODEN: NUPAB.;Nucl. Phys., A.
- Journal Page Range
- 511-524
- ISSN
- 0375-9474
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 15066191
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANGULAR DISTRIBUTION; CARBON 12 REACTIONS; CARBON 12 TARGET; COULOMB CORRECTION; DIFFERENTIAL CROSS SECTIONS; ENERGY SPECTRA; EXPERIMENTAL DATA; GEV RANGE 01-10; INCLUSIVE INTERACTIONS; LEAD 208 TARGET; LITHIUM 7 TARGET; MEV RANGE 100-1000; PARTICLE PRODUCTION; PIONS MINUS; PIONS PLUS
- Descriptors DEC
- ANTIMATTER; ANTIMESONS; ANTIPARTICLES; BOSONS; CORRECTIONS; CROSS SECTIONS; DATA; DISTRIBUTION; ELEMENTARY PARTICLES; ENERGY RANGE; GEV RANGE; HADRONS; HEAVY ION REACTIONS; INFORMATION; INTERACTIONS; MATTER; MESONS; MEV RANGE; NUCLEAR REACTIONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PIONS; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS; SPECTRA; TARGETS