Parity of $Θ^+$(1540) from QCD sum rules

Details Parity of $Θ^+$(1540) from QCD sum rules Parity of $Θ^+$(1540) from QCD sum rules

2004-11-08

arxiv.org/abs/hep-ph/0411104v2

Phys.Lett. B609 (2005) 252-258

Physics

High Energy Physics

High Energy Physics - Phenomenology

slightly revised, version to appear in PLB

Scientific paper

10.1016/j.physletb.2005.01.029

The QCD sum rule for the pentaquark $\Theta^+$, first analyzed by Sugiyama, Doi and Oka, is reanalyzed with a phenomenological side that explicitly includes the contribution from the two-particle reducible kaon-nucleon intermediate state. The magnitude for the overlap of the $\Theta^+$ interpolating current with the kaon-nucleon state is obtained by using soft-kaon theorem and a separate sum rule for the ground state nucleon with the pentaquark nucleon interpolating current. It is found that the K-N intermediate state constitutes only 10% of the sum rule so that the original claim that the parity of $\Theta^+$ is negative remains valid.

Affiliated with

Also associated with

No associations

Rating

Parity of $Θ^+$(1540) from QCD sum rules 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 Parity of $Θ^+$(1540) from QCD sum rules, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Parity of $Θ^+$(1540) from QCD sum rules will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-109276