论文标题
通过$ \ mathbf {\ overlineξ^+λ\，k^ - } $最终状态与熊猫
Prospects for Spin-Parity Determination of Excited Baryons via the $\mathbf{\overlineΞ^+Λ\,K^-}$ Final State with PANDA
论文作者
论文摘要
对重子激发光谱的研究为巴元的内部结构提供了深刻的了解。大多数全球努力都针对$ n^*$和$δ^*$光谱法。在不久的将来，通过熊猫实验获得了双重和三重奇怪巴属光谱的互补数据。较早的蒙特卡洛（Monte Carlo）研究表明，熊猫（Panda）的预期横截面为预期的横截面，熊猫（Panda）将能够大量观察$ \ bar {p} p \ rightArrow \ rightline 2^+λ\，k^ - $，包括两个共振$ neg $ξ\ weft（1690 \ right） 贡献。在这项研究中，确定$ξ\左（1690 \ right）^ - $和$ξ\ left（1820 \右）^ - $共振的可行性是通过使用PAWIAN软件的部分波分析来研究的。提出的结果证明了熊猫实验的能力，可以通过几天的数据来确定这些共振的旋转性。
A study of the baryon excitation spectra provides a deep insight into the inner structure of baryons. Most of the world-wide efforts have been directed towards $N^*$ and $Δ^*$ spectroscopy. Complementary data from double and triple strange baryon spectra are lacking and foreseen to be obtained with the PANDA experiment in the near future. Earlier Monte Carlo studies demonstrated that with an expected cross section in the order of $μ$b, PANDA will be able to copiously observe the channel $\bar{p}p\rightarrow \overlineΞ^+Λ\,K^-$, including the two resonances $Ξ\left(1690\right)^-$ and $Ξ\left(1820\right)^-$, with a negligible background contribution. In this study, the feasibility to determine the spin and parity of the $Ξ\left(1690\right)^-$ and $Ξ\left(1820\right)^-$ resonances is investigated by making use of a partial wave analysis employing the PAWIAN software. The presented results demonstrate the capability of the PANDA experiment to determine the spin-parity of these resonances with a few days of data taking.
