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SUMMARY:From the Bethe-Salpeter equation to non-relativistic approaches wi
 th effective two-body interactions
DTSTART;VALUE=DATE-TIME:20020117T113000Z
DTEND;VALUE=DATE-TIME:20020117T123000Z
DTSTAMP;VALUE=DATE-TIME:20261109T001727Z
UID:indico-event-1248@indico.ific.uv.es
DESCRIPTION:Regarding the scalar two-body bound state problem\, we present
  an investigation of different three-dimensional approaches that follow fr
 om the Bethe-Salpeter equation in a certain non-relativistic reduction sch
 eme. These approaches include in particular an equation whose interaction 
 depends on the total energy of the system. It is shown that such an equati
 on is able to account for a certain number of properties of the Bethe-Salp
 eter equation\, in particular\, that there also arise abnormal solutions i
 n such an approach. We conclude that the main difference between the Bethe
 -Salpeter results and the instantaneous approximation ones are not due to 
 relativity\, as often conjectured.\n\nhttps://indico.ific.uv.es/event/1248
 /
LOCATION:Dpto. de Física Teórica (UVEG) Sala Seminarios
URL:https://indico.ific.uv.es/event/1248/
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