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SUMMARY:Three body resonances in two meson one baryon systems
DTSTART;VALUE=DATE-TIME:20070302T110000Z
DTEND;VALUE=DATE-TIME:20070302T120000Z
DTSTAMP;VALUE=DATE-TIME:20261112T123522Z
UID:indico-event-1552@indico.ific.uv.es
DESCRIPTION:We report four $\\Sigma$'s (1480\, 1560\, 1620 and 1660 MeV) a
 nd two $\\Lambda$'s (1600 and 1810 MeV) with $J^P= 1/2^+$\, which are all 
 the $\\Lambda$'s in the PDG below 1810 MeV and all the $\\Sigma$'s below 1
 750 MeV\, as dynamically generated resonances in the $\\pi \\bar{K} N$ sys
 tem and its coupled channels. We solve Faddeev equations in the coupled ch
 annel approach taking twenty two of them into account and assuming correla
 tions in the subsystem of $\\bar{K} N$ and its two body coupled channels. 
 The invariant mass of this correlated pair and that of the three particles
  is varied and the squared three body $T$-matrix is plotted as a function 
 of these two variables. We find three dimensional peaks in these plots at 
 the energies very close to the above mentioned resonances. The input two-b
 ody $t$-matrices for meson-meson and meson-baryon interactions have been o
 btained by solving the Bethe-Salpeter equations with Chiral Lagrangians.\n
 \nhttps://indico.ific.uv.es/event/1552/
LOCATION:Dpto. de Física Teórica (UVEG) Sala Seminarios
URL:https://indico.ific.uv.es/event/1552/
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