论文标题

反应的研究$ e^+e^ - \ to k^+k^-π^0π^0π^0 $,$ e^+e^ - \ to k^{0} _ {s} _ {s} k^{\ pm}π^{\ mp} \ mp}π^0π^0π^0π^0 $ e^+e^+e^+e^ - \ to k^{0} _ {s} k^{\ pm}π^{\ mp}π^+π^ - $在质量中心能量从阈值到4.5 GEV,使用ISR

Study of the reactions $e^+e^-\to K^+K^-π^0π^0π^0$, $e^+e^-\to K^{0}_{S}K^{\pm}π^{\mp}π^0π^0$, and $e^+e^-\to K^{0}_{S}K^{\pm}π^{\mp}π^+π^-$ at center-of-mass energies from threshold to 4.5 GeV using ISR

论文作者

BaBar Collaboration

论文摘要

我们研究过程 $ e^+e^ - \ to k^+k^-π^0π^0π^0γ$, $ k^{0} _ {s} k^{\ pm}π^{\ mp}π^0π^0γ$,和$ k^{0} _ {s} k^{\ pm}π^{\ pm}π^{\ mp}π^+π^+π^+π^+π^ - γ$在该phote phote phote is poldet in poldet is prade in and pyte pyte the in the pote the in the pote the in the int odget。数据是在SLAC国家加速器实验室使用\ babar〜检测器收集的。 分别从与469 \ Invfb的集成光度相对应的数据样本中选择了大约1200、2600和6000个事件。 Hadronic最终状态的不变质量定义了\ Epem质量中心能量。质量中心能量的范围从阈值到4.5 \ gev。从质谱来看,$ e^+e^ - \ to k^+k^-π^0π^0π^0 $,$ e^+e^ - \ to k^0_sk^{\ pm}π^{\ mp} pmp}π^0π^0π^0 $,以及$ e^+e^ - \ t to K^+e^0π^0 $的第一个测量值k^0_sk^{\ pm}π^{\ mp}π^+π^ - $ cross截面已执行。中间状态的贡献包括$η$,$ ϕ $,$ρ$,$ k^*(892)$和其他共鸣。我们在大多数最终状态中观察到$ j/ψ$和$ψ(2s)$,并测量相应的分支分数,其中许多是第一次。

We study the processes $e^+e^-\to K^+K^-π^0π^0π^0γ$, $K^{0}_{S}K^{\pm}π^{\mp}π^0π^0γ$, and $K^{0}_{S}K^{\pm}π^{\mp}π^+π^-γ$ in which an energetic photon is radiated from the initial state. The data were collected with the \babar~ detector at the SLAC National Accelerator Laboratory. About 1200, 2600, and 6000 events, respectively, are selected from a data sample corresponding to an integrated luminosity of 469\invfb. The invariant mass of the hadronic final state defines the effective \epem center-of-mass energy. The center-of-mass energies range from threshold to 4.5\gev. From the mass spectra, the first ever measurements of the $e^+e^-\to K^+K^-π^0π^0π^0$, $e^+e^-\to K^0_SK^{\pm}π^{\mp}π^0π^0$, and $e^+e^-\to K^0_SK^{\pm}π^{\mp}π^+π^-$ cross sections are performed. The contributions from the intermediate states that include $η$, $ϕ$, $ρ$, $K^*(892)$, and other resonances are presented. We observe the $J/ψ$ and $ψ(2S)$ in most of these final states and measure the corresponding branching fractions, many of them for the first time.

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