True absorption and scattering of pions on nuclei

D. Ashery, I. Navon, G. Azuelos, H. K. Walter, H. J. Pfeiffer, F. W. Schlepütz

Research output: Contribution to journalArticlepeer-review

Abstract

The cross section for true absorption of pions in nuclei was obtained from experiments at 85, 125, 165, 205, 245, and 315 MeV for positive pions and at 125 and 165 MeV for negative pions. The results are compared with theoretical calculations. The inclusive pion scattering angular distribution was also measured, and the results indicate that quasifree scattering plays an important role for backward scattering. The total pion-nucleus cross section is decomposed into its major channels: elastic scattering, inclusive inelastic scattering, true absorption, and single charge exchange, as a function of pion energy and charge. For light nuclei, the true absorption cross section has a strong energy dependence, reflecting the shape of the (3,3) resonance. The A dependence of the true absorption cross section is much stronger than that of the inclusive inelastic scattering. NUCLEAR REACTIONS Li, C, Al, Fe, Nb, Bi (π±,π′); measured σ(θπ′), Eπ+=85, 125, 165, 205, 245, and 315 MeV, Eπ-=125, 165 MeV; deduced σinelastic, σabsorption; decomposition of σtot.

Original languageEnglish
Pages (from-to)2173-2185
Number of pages13
JournalPhysical Review C - Nuclear Physics
Volume23
Issue number5
DOIs
StatePublished - 1981

Fingerprint

Dive into the research topics of 'True absorption and scattering of pions on nuclei'. Together they form a unique fingerprint.

Cite this