The meson $Z^+(4430)$ as a tetraquark state

Details The meson $Z^+(4430)$ as a tetraquark state The meson $Z^+(4430)$ as a tetraquark state

2008-07-21

arxiv.org/abs/0807.3275v2

Phys.Lett.B671:240-244,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

version accepted for publication at Phys. Lett. B

Scientific paper

10.1016/j.physletb.2008.12.021

We test the validity of the QCD sum rules applied to the meson $Z^+(4430)$, by considering a diquark-antidiquark type of current with $J^{P}=0^{-}$ and with $J^{P}=1^{-}$. We find that, with the studied currents, it is possible to find an acceptable Borel window. In such a Borel window we have simultaneously a good OPE convergence and a pole contribution which is bigger than the continuum contribution. We get $m_Z=(4.52\pm0.09)\GeV$ and $m_Z=(4.84\pm0.14)\GeV$ for the currents with $J^{P}=0^{-}$ and $J^{P}=1^{-}$ respectively. We conclude that the QCD sum rules results favors $J^{P}=0^{-}$ quantum numbers for the $Z^+(4430)$ meson.

Affiliated with

Also associated with

No associations

Rating

The meson $Z^+(4430)$ as a tetraquark 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 The meson $Z^+(4430)$ as a tetraquark state, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The meson $Z^+(4430)$ as a tetraquark state will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-72742