arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0905.3308hep-ph
收藏

轻标量介子与不轻标量介子

Light and Not So Light Scalar Mesons

George Rupp, Susana Coito, Eef van Beveren

摘要:

在共振谱展开的框架下,对轻标量介子的多通道描述除了通常的赝标-赝标通道外,还包括矢量-矢量通道和标量-标量通道.实验数据的isoscillator,isodelet和isovector的情况下,拟合能量远高于1 GeV。由此产生的光和中间标量介子的极点位置进行比较,列出的共振。可能的进一步改进进行了讨论。

英文摘要:

A multichannel description of the light scalar mesons in the framework of the Resonance-Spectrum Expansion is generalised by including vector-vector and scalar-scalar channels, besides the usual pseudoscalar-pseudoscalar channels. Experimental data for the isoscalar, isodoublet and isovector cases are fitted up to energies well above 1 GeV. The resulting pole positions of the light and intermediate scalar mesons are compared to the listed resonances. Possible further improvements are discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑