Is the Theta+ a K pi N bound state?

Details Is the Theta+ a K pi N bound state? Is the Theta+ a K pi N bound state?

2003-11-06

arxiv.org/abs/nucl-th/0311020v2

Phys.Rev. C69 (2004) 055203

Physics

Nuclear Physics

Nuclear Theory

Change of title and few sentences, size of two graphs. References added

Scientific paper

10.1103/PhysRevC.69.055203

Following a recent suggestion that the $\Theta ^+$ could be a $K \pi N$ bound state we perform an investigation under the light of the meson meson and meson baryon dynamics provided by the chiral Lagrangians and using methods currently employed to dynamically generate meson and baryon resonances by means of unitary extensions of chiral perturbation theory. We consider two body and three body forces and examine the possibility of a bound state below the three particle pion-kaon-nucleon and above the kaon-nucleon thresholds. Although we find indeed an attractive interaction in the case of isospin I=0 and spin-parity $1/2^+$, the interaction is too weak to bind the system. If we arbitrarily add to the physically motivated potential the needed strength to bind the system and with such strong attraction evaluate the decay width into $K N$, this turns out to be small. A discussion on further work in this direction is done.

Affiliated with

Also associated with

No associations

Rating

Is the Theta+ a K pi N bound state? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Is the Theta+ a K pi N bound state?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Is the Theta+ a K pi N bound state? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-519506