Low energy pion-nucleus potentials from differential and integral data

Journal Article · Tue Aug 01 04:00:00 EDT 1989 · Physical Review (Section) C: Nuclear Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevC.40.843· OSTI ID:5539882

Meirav, O; Friedman, E ^[1]; Johnson, R R ^[1]; Olszewski, R ^[1]; Weber, P ^[2]

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1. The Racah Institute of Physics, The Hebrew University, Jerusalem 91904, Israel (IL)
2. Department of Physics, University of British Columbia, Vancouver, British Columbia, Canada V6T 2A6

Total reaction cross sections were measured for 50 MeV {pi}{sup {plus minus}} on Si and Ni, 65 MeV {pi}{sup {plus minus}} on Ni, and 80 MeV {pi}{sup {plus minus}} on C, Ca, Zr, and Pb. Together with similar data measured previously for 50 and 65 MeV {pi}{sup {plus minus}} on several targets, these cross sections were used as constraints in optical-model analysis of the elastic scattering of pions by nuclei. Also analyzing data at 20 and 30 MeV, a pion-nucleus potential was constructed that is strongly linked with the free pion-nucleon interaction, has smooth variation with energy between 0 and 80 MeV, and is capable of describing very well, much better than any potential published so far, all available data on differential and integral cross sections for {pi}{sup +} and {pi}{sup {minus}} interactions with nuclei.

• OSTI ID: 5539882
• Journal Information: Physical Review (Section) C: Nuclear Physics; (USA), Journal Name: Physical Review (Section) C: Nuclear Physics; (USA) Vol. 40:2; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ALKALINE EARTH METALS
CALCIUM
CARBON
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
CYCLIC ACCELERATORS
CYCLOTRONS
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ELEMENTS
ENERGY RANGE
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
ISOCHRONOUS CYCLOTRONS
LEAD
MESON REACTIONS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
METALS
MEV RANGE
MEV RANGE 10-100
NICKEL
NONMETALS
NUCLEAR REACTIONS
OPTICAL MODELS
PARTICLE INTERACTIONS
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
PION-NUCLEON INTERACTIONS
SCATTERING
SEMIMETALS
SILICON
TOTAL CROSS SECTIONS
TRANSITION ELEMENTS
TRIUMF CYCLOTRON
ZIRCONIUM