The $η(2225)$ observed by the BES Collaboration

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dc.creatorLi, De-Min
dc.creatorMa, Bing
dc.date2008-03-02
dc.date2008-04-03
dc.date.accessioned2026-07-07T11:40:34Z
dc.date.available2026-07-07T11:40:34Z
dc.descriptionIn the framework of the $^3P_0$ meson decay model, the strong decays of the $3 ^1S_0$ and $4 ^1S_0$ $s\bar{s}$ states are investigated. It is found that in the presence of the initial state mass being 2.24 GeV, the total widths of the $3 ^1S_0$ and $4 ^1S_0$ $s\bar{s}$ states are about 438 MeV and 125 MeV, respectively. Also, when the initial state mass varies from 2220 to 2400 MeV, the total width of the $4 ^1S_0$ $s\bar{s}$ state varies from about 100 to 132 MeV, while the total width of the $3 ^1S_0$ $s\bar{s}$ state varies from about 400 to 594 MeV. A comparison of the predicted widths and the experimental result of $(0.19\pm 0.03^{+0.04}_{-0.06})$ GeV, the width of the $η(2225)$ with a mass of $(2.24^{+0.03+0.03}_{-0.02-0.02})$ GeV recently observed by the BES Collaboration in the radiative decay $J/ψ\toγϕϕ\toγK^+K^-K^0_SK^0_L$, suggests that it would be very difficult to identify the $η(2225)$ as the $3 ^1S_0$ $s\bar{s}$ state, and the $η(2225)$ seams a good candidate for the $4 ^1S_0$ $s\bar{s}$ state.
dc.description14 pages, 3 figures, typos corrected, Accepted by Physical Review D
dc.identifierhttps://arxiv.org/abs/0803.0106
dc.identifierhttp://arxiv.org/abs/0803.0106
dc.identifierPhys.Rev.D77:094021,2008
dc.identifierdoi:10.1103/PhysRevD.77.094021
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200293
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe $η(2225)$ observed by the BES Collaboration
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