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VERSION:2.0
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SUMMARY:Peripheral NN-Scattering and Chiral Symmetry
DTSTART;VALUE=DATE-TIME:19990315T110000Z
DTEND;VALUE=DATE-TIME:19990315T120000Z
DTSTAMP;VALUE=DATE-TIME:20260703T064901Z
UID:indico-event-1118@indico.ific.uv.es
DESCRIPTION:We evaluate in the one-loop approximation of chiral perturbati
 on theory all one- and two-pion exchange contributions to elastic NN-scatt
 ering. We find that the Delta(1232)-excitation produces the correct amount
  of scalar isoscalar attraction as needed in the peripheral partial waves 
 with $L>=3$. Thus no explicit sigma meson is needed. The two-loop diagrams
  of correlated two-pion produce negligilby small repulsive corrections. Ve
 ctor meson exchamge becomes important in the F-waves above 150 MeV.\n\nhtt
 ps://indico.ific.uv.es/event/1118/
LOCATION:Dpto. de Fisica Teorica (UVEG) Sala Seminarios
URL:https://indico.ific.uv.es/event/1118/
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