High Energy Physics - Phenomenology
[Submitted on 30 Oct 2016 (v1), last revised 15 Feb 2017 (this version, v3)]
Title:$f_2(1810)$ as a triangle singularity
View PDFAbstract:We perform calculations showing that a source producing $K^* \bar{K}^*$ in $J = 2$ and $L=0$ gives rise to a triangle singularity at $1810$ MeV with a width of about $200$ MeV from the mechanism $K^* \to \pi K$ and then $K\bar{K}^*$ merging into the $a_1(1260)$ resonance. We suggest that this is the origin of the present $f_2(1810)$ resonance and propose to look at the $\pi a_1(1260)$ mode in several reactions to clarify the issue.
Submission history
From: Li-Sheng Geng [view email][v1] Sun, 30 Oct 2016 02:16:35 UTC (114 KB)
[v2] Wed, 2 Nov 2016 01:55:42 UTC (103 KB)
[v3] Wed, 15 Feb 2017 07:24:10 UTC (87 KB)
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