6533b830fe1ef96bd1297cbc
RESEARCH PRODUCT
Exotic states in the S=1 N-pi-K system and low-lying 1/2+ S=-1 resonances
A. Martínez TorresK. P. KhemchandaniEulogi Osetsubject
Nuclear physicsPhysicsFaddeev equationsParticle physicsBethe–Salpeter equationPhysicsQC1-999Structure (category theory)Particle Data GroupStrangenessThree-body problemBar (unit)S-matrixdescription
In this manuscript we discuss about our study of the $N \pi \bar{K}$ and the NπK systems made by solving the Faddeev equations with the two-body t-matrices obtained by solving the Bethe-Salpeter equations with the potentials obtained from chiral dynamics. In the strangeness = -1 case, we found that all the Λ and Σ resonances listed by the particle data group, with spin-parity 1/2+ , in the 1550-1800 MeV region get generated due to the involved three-body dynamics. This motivated us to study the strangeness =1 three-body system, i.e., NπK , where we did not find any evidence for the Θ + (1542) but found a broad bump around 1700 MeV which has a κ (800)N structure.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-04-01 | EPJ Web of Conferences |