Reaction cross-sections and reduced strong absorption radii of nuclei in the vicinity of closed shells N=20 and N=28
Creators
- Khouaja, A.1, 2, 3
- Villari, A.C.C.4, 3
- Benjelloun, M.2
- Auger, G.5, 3
- Pitae, S.5, 3
- Baiborodin, D.6
- Dlouhy, Z.6
- Catford, W.7
- Chartier, M.8
- Demonchy, C.E.8, 3
- Gillibert, A.9
- Giot, L.10, 3
- Hirata, D.11
- Lepine-Szily, A.12
- Mittig, W.3
- Roussel-Chomaz, P.3
- Saint-Laurent, M.G.3
- Savajols, H.3
- Orr, N.10
- Penionzhkevich, Y.13
- 1. LNS-INFN, Catania (Italy)
- 2. LPTN Faculty of Sciences, El Jadida BP 20, El Jadida (Morocco)
- 3. GANIL, BP 55027, Caen Cedex 5 (France)
- 4. Argonne National Laboratory, Physics Division, Argonne, IL (United States)
- 5. College de France, Paris Cedex 05 (France)
- 6. Nuclear Physics Institute ASCR, Rez (Czech Republic)
- 7. University of Surrey, Nuclear Physics Department, Guilford (United Kingdom)
- 8. University of Liverpool, Department of Physics, Liverpool (United Kingdom)
- 9. CEN Saclay, CEA/DSM/DAPNIA/SPHN, Gif-sur Yvette (France)
- 10. ISMRA and University of Caen, LPC, Caen (France)
- 11. Open University, Department of Physics and Astronomy, Walton Hall, Milton Keynes (United Kingdom)
- 12. University of S ao Paulo IFUSP, C.P. 66318, S ao Paulo (Brazil)
- 13. JINR Dubna, FLNR, Moscow (Russian Federation)
Description
Energy integrated reaction cross-section measurements of around sixty neutron-rich nuclei covering the region of closed shells N=20 and N=28 were performed at intermediate energy (30-65 A. MeV) using direct method. In this experiment, silicon detectors were used as active targets. The reduced strong absorption radii, r02, for 19 new nuclei (27F, 27,30Ne, 33Na, 28,34-35Mg, 36-38Al, 38-40Si, 41-42P, 42-44S and 45Cl) are deduced for the first time. An additional 60 radii, also measured in this experiment, are compared to results from literature. A new quadratic parametrization is proposed for the nuclear radius as a function of the isospin in the region of closed shells N=8 and N=28. According to this parametrization, the skin effect is well reproduced and anomalous behaviour on the radii are observed in 23N, 29Ne, 33Na, 35Mg, 44S, 45Cl and 45Ar nuclei. (orig.)
Availability note (English)
Available from: http://dx.doi.org/10.1140/epjad/i2005-06-185-xAdditional details
Identifiers
Publishing Information
- Journal Title
- European Physical Journal. A
- Journal Volume
- 25
- Journal Issue
- Suppl.1
- Journal Page Range
- p. 223-226
- ISSN
- 1434-6001
Conference
- Title
- 4. international conference on exotic nuclei and atomic masses
- Acronym
- ENAM '04
- Dates
- 12-16 Sep 2004
- Place
- Pine Mountain, GA (United States)
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 36103814
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- ALUMINIUM 36; ALUMINIUM 37; ALUMINIUM 38; ARGON 45; CHLORINE 45; EXPERIMENTAL DATA; FLUORINE 27; GEV RANGE 01-10; MAGNESIUM 28; MAGNESIUM 34; MAGNESIUM 35; MEV RANGE 100-1000; NEON 27; NEON 30; NEUTRON-RICH ISOTOPES; NUCLEAR RADII; PHOSPHORUS 41; PHOSPHORUS 42; SILICON 28 TARGET; SILICON 38; SILICON 39; SILICON 40; SODIUM 23; SODIUM 23 REACTIONS; SODIUM 33; SULFUR 42; SULFUR 43; SULFUR 44; TOTAL CROSS SECTIONS
- Descriptors DEC
- ALKALINE EARTH ISOTOPES; ALUMINIUM ISOTOPES; ARGON ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHLORINE ISOTOPES; CROSS SECTIONS; DATA; ENERGY RANGE; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; FLUORINE ISOTOPES; GEV RANGE; HEAVY ION REACTIONS; HOURS LIVING RADIOISOTOPES; INFORMATION; INTERMEDIATE MASS NUCLEI; ISOTOPES; LIGHT NUCLEI; MAGNESIUM ISOTOPES; MEV RANGE; MILLISECONDS LIVING RADIOISOTOPES; NEON ISOTOPES; NUCLEAR PROPERTIES; NUCLEAR REACTIONS; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; PHOSPHORUS ISOTOPES; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SILICON ISOTOPES; SODIUM ISOTOPES; STABLE ISOTOPES; SULFUR ISOTOPES; TARGETS