1. Effect of Λ(1405) on structure of multi-antikaonic nuclei
- Author
-
Takumi Muto, Toshiki Maruyama, Toshitaka Tatsumi, David Armstrong, Volker Burkert, Jian-Ping Chen, Will Detmold, Jo Dudek, Wally Melnitchouk, and David Richards
- Subjects
Nuclear physics ,Physics ,Mean field theory ,Meson ,Nuclear Theory ,Hadron ,Bound state ,Nuclear structure ,Elementary particle ,Nuclear Experiment ,Nucleon ,Lambda baryon - Abstract
The second‐order effects (SOE) including a pole contribution of the Λ(1405) (Λ*) and range terms on the structure of multi‐antikaonic nuclei are investigated in a relativistic mean‐field theory coupled with the nonlinear effective chiral Lagrangian. It is shown that, due to the attractive interaction from the Λ*‐pole contribution, the K− mesons and the protons are more attracted each other than the case without the SOE. On the other hand, the density distribution for neutron is pushed outward due to the repulsive effect from the range terms. The SOE on the formation of the bound state of K− mesons are also discussed associated with modification of relevant kaonic modes in a dense medium.
- Published
- 2011