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arXiv 1208.4477hep-phhep-latnucl-th
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径向和angular-momentum Regge轨迹:系统方法

Radial and angular-momentum Regge trajectories: a systematic approach

P. Masjuan, E. R. Arriola, W. Broniowski

摘要:

我们提出的分析参考。[1]粒子数据表中列出的所有轻夸克介子态的径向(n)和角动量(J)Regge轨迹。轨迹的参数是用线性回归得到的,每个共振的权重与其半宽的平方成反比,(Γ/2)^2。在(n,J,M^2)Regge平面上的联合分析表明,在4.5标准差水平上,n的斜率大于J的斜率,因此在轻非奇异介子扇区中不存在严格的斜率普适性。我们也将我们的分析扩展到K介子扇区。

英文摘要:

We present the analysis of Ref.[1] of the radial (n) and angular-momentum (J) Regge trajectories for all light-quark meson states listed in the Particle Data Tables. The parameters of the trajectories are obtained with linear regression, with weight of each resonance inversely proportional to its half-width squared, (Γ/2)^2. The joint analysis in the (n,J,M^2) Regge plane indicates, at the 4.5 standard deviation level, that the slopes in n are larger from the slopes in J. Thus no strict universality of slopes occurs in the light non-strange meson sector. We also extend our analysis to the kaon sector.

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