Evidence for a new $Σ^{*}$ resonance with $J^P=1/2^-$ in the old data of $K^-p\toΛπ^+π^-$ reaction

Details Evidence for a new $Σ^{*}$ resonance with $J^P=1/2^-$ in the old data of $K^-p\toΛπ^+π^-$ reaction Evidence for a new $Σ^{*}$ resonance with $J^P=1/2^-$ in the old data of $K^-p\toΛπ^+π^-$ reaction

2009-06-22

arxiv.org/abs/0906.3950v2

Phys.Rev.D80:017503,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 4 figures

Scientific paper

10.1103/PhysRevD.80.017503

Distinctive patterns are predicted by quenched quark models and unquenched quark models for the lowest SU(3) baryon nonet with spin parity $J^P=1/2^-$. While the quenched quark models predict the lowest $1/2^-$ $\Sigma^*$ resonance to be above 1600 MeV, the unquenched quark models predict it to be around $\Sigma^*(1385)$ energy. Here we re-examine some old data of the $\kp \to \la$ reaction and find that besides the well established $\Sigma^{*}(1385)$ with $J^P=3/2^+$, there is indeed some evidence for the possible existence of a new $\Sigma^{*}$ resonance with $J^P=1/2^-$ around the same mass but with broader decay width. Higher statistic data on relevant reactions are needed to clarify the situation.

Affiliated with

Also associated with

No associations

Rating

Evidence for a new $Σ^{*}$ resonance with $J^P=1/2^-$ in the old data of $K^-p\toΛπ^+π^-$ reaction 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 Evidence for a new $Σ^{*}$ resonance with $J^P=1/2^-$ in the old data of $K^-p\toΛπ^+π^-$ reaction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence for a new $Σ^{*}$ resonance with $J^P=1/2^-$ in the old data of $K^-p\toΛπ^+π^-$ reaction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-495212