Partial wave analysis of J/ψ\to γφφ

Details Partial wave analysis of J/ψ\to γφφ Partial wave analysis of J/ψ\to γφφ

2008-01-25

arxiv.org/abs/0801.3885v3

Phys.Lett.B662:330-335,2008

Physics

High Energy Physics

High Energy Physics - Experiment

11 pages, 4 figures. corrected proof for journal

Scientific paper

10.1016/j.physletb.2008.03.027

Using $5.8 \times 10^7 J/\psi$ events collected in the BESII detector, the radiative decay $J/\psi \to \gamma \phi \phi \to \gamma K^+ K^- K^0_S K^0_L$ is studied. The $\phi\phi$ invariant mass distribution exhibits a near-threshold enhancement that peaks around 2.24 GeV/$c^{2}$. A partial wave analysis shows that the structure is dominated by a $0^{-+}$ state ($\eta(2225)$) with a mass of $2.24^{+0.03}_{-0.02}{}^{+0.03}_{-0.02}$ GeV/$c^{2}$ and a width of $0.19 \pm 0.03^{+0.06}_{-0.04}$ GeV/$c^{2}$. The product branching fraction is: $Br(J/\psi \to \gamma \eta(2225))\cdot Br(\eta(2225)\to \phi\phi) = (4.4 \pm 0.4 \pm 0.8)\times 10^{-4}$.

Affiliated with

Also associated with

No associations

Rating

Partial wave analysis of J/ψ\to γφφ 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 Partial wave analysis of J/ψ\to γφφ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Partial wave analysis of J/ψ\to γφφ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-412253