LOW-ENERGY PION-NUCLEUS POTENTIAL IN THE EXTENDED TREE-LEVEL MODEL FOR THE PION-NUCLEON INTERACTION

Authors
BIRBRAIR BL AVDEEVA TM KALASHNIKOV YA
Citation
Bl. Birbrair et al., LOW-ENERGY PION-NUCLEUS POTENTIAL IN THE EXTENDED TREE-LEVEL MODEL FOR THE PION-NUCLEON INTERACTION, ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 355(4), 1996, pp. 427-432
Citations number
21
Categorie Soggetti
Physics, Nuclear","Physics, Particles & Fields
Journal title
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI → ACNP
ISSN journal
09397922
Volume
355
Issue
4
Year of publication
1996
Pages
427 - 432
Database
ISI
SICI code
0939-7922(1996)355:4<427:LPPITE>2.0.ZU;2-X
Abstract
Starting from the extended tree-level model for the pi N interaction [ 1] (hereafter ETLM) we demonstrated that the observed local pion-nucle us repulsion arises from the reduction of baryon masses in nucleus due to strong scalar nuclear field [2]. This is rather convincing argumen t in favour of nuclear relativism because such repulsion has no explan ation within the traditional nonrelativistic approach to nucleus.