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arXiv 1102.0126nucl-ex
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激发奇异系统费米破裂产生激发双超核

Production of excited double hypernuclei via Fermi breakup of excited strange systems

Alicia Sanchez Lorente, Alexander Botvina, Josef Pochodzalla

摘要:

多奇异超核的精确谱学研究为探索超子-超子相互作用提供了一个独特的机会。在本工作中,我们探讨了双超核中激发态的产生后的微正则破碎的初始激发双超核,这是由一个停止的$Ξ^{-}$超子的吸收和转换。在我们的模型中,激发态的形成与所产生的双超核中可能的激发态的谱无关。对于吸收$Ξ^-$的不同初始靶核,不同的双超核核占主导地位。因此,通过探索{ \Panda }合作提出的各种光靶,以独特的方式将各种可观察到的$γ$ -跃迁分配给特定的双超核的能力似乎是可能的。我们还面临着我们的预测与E906合作测量的相关π介子光谱。

英文摘要:

Precise spectroscopy of multi-strange hypernuclei provides a unique chance to explore the hyperon-hyperon interaction. In the present work we explore the production of excited states in double hypernuclei following the micro-canonical break-up of an initially excited double hypernucleus which is created by the absorption and conversion of a stopped $Ξ^{-}$ hyperon. Rather independent on the spectrum of possible excited states in the produced double hypernuclei the formation of excited states dominates in our model. For different initial target nuclei which absorb the $Ξ^-$, different double hypernuclei nuclei dominate. Thus the ability to assign the various observable $γ$-transitions in a unique way to a specific double hypernuclei by exploring various light targets as proposed by the {\Panda} collaboration seems possible. We also confront our predictions with the correlated pion spectra measured by the E906 collaboration.

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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