Quasibound state in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mover accent="true"><mml:mi>K</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:mi>N</mml:mi><mml:mi>N</mml:mi><mml:mi>N</mml:mi></mml:mrow></mml:math> system

Abstract

The attractive nature of the antikaon-nucleon interaction suggests that few-body systems of antikaons and nucleons can exist. The author presents a new study of the exotic $\overline{K}\phantom{\rule{0}{0ex}}N\phantom{\rule{0}{0ex}}N\phantom{\rule{0}{0ex}}N$ system. Four-body Faddeev-type equations are used to evaluate the binding energy and the width of the quasi-bound state in the system. The dependence of the results on the two-body antikaon-nucleon and nucleon-nucleon interactions is quantified.

Topics & Concepts