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arXiv 1306.6171hep-phnucl-th
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反宇称费米子混合与重子$1/2^{\pm}$

Opposite parity fermion mixing and baryons $1/2^{\pm}$

A. E. Kaloshin, E. A. Kobeleva, V. P. Lomov

摘要:

我们发展了一个包含了相反宇称费米子(OPF)混合效应的$K$ -矩阵的变体,并将其应用于描述$πN$分波$S_{11}$和$P_{11}$ . OPF混合导致$K$ -矩阵中出现负能量极点,恢复了MacDowell对称性,使两个分波相关联。联合分析$S_{11}$和$P_{11}$的PWA结果证实了该效应的显著性。

英文摘要:

We develop a variant of $K$-matrix, which includes the effect of opposite parity fermions (OPF) mixing, and apply it for description of $πN$ partial waves $S_{11}$ and $P_{11}$. OPF-mixing leads to appearance of negative energy poles in $K$-matrix and restoration of MacDowell symmetry, relating two partial waves. Joint analysis of PWA results for $S_{11}$ and $P_{11}$ confirms significance of this effect.

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。

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