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D介子家族中$D_{J}(2580)$、$D_{J}^{*}(2650)$、$D_{J}(2740)$、$D_{J}^{*}(2760)$、$D_{J}(3000)$和$D_{J}^{*}(3000)$的系统分析

Systematic analysis of the $D_{J}(2580)$, $D_{J}^{*}(2650)$, $D_{J}(2740)$, $D_{J}^{*}(2760)$, $D_{J}(3000)$ and $D_{J}^{*}(3000)$ in $D$ meson family

Guo-Liang Yu, Zhi-Gang Wang, Zhen-Yu Li

AI总结:

本文利用$^{3}P_{0}$模型系统分析LHCb观测到的六个D介子激发态的强衰变,并给出其自旋-宇称和量子数指定,为后续实验研究D介子混合提供理论参考。

摘要:

在这项工作中,我们根据自旋-宇称和质量,尝试性地指定LHCb合作组观测到的粲介子$D_{J}(2580)$、$D_{J}^{*}(2650)$、$D_{J}(2740)$、$D_{J}^{*}(2760)$、$D_{J}(3000)$和$D_{J}^{*}(3000)$,然后利用$^{3}P_{0}$模型研究它们到基态粲介子加轻赝标介子的强衰变。根据这些研究,我们将$D_{J}^{*}(2760)$指定为$1D\ rac{5}{2}3^{-}$态,将$D_{J}^{*}(3000)$指定为$1F\ rac{5}{2}2^{+}$或$1F\ rac{7}{2}4^{+}$态,将$D_{J}(3000)$指定为D介子家族中的$1F\ rac{7}{2}3^{+}$或$2P\ rac{1}{2}1^{+}$态。作为附带成果,我们还研究了$2P\ rac{1}{2}0^{+}$、$2P\ rac{3}{2}2^{+}$、$3S\ rac{1}{2}1^{-}$、$3S\ rac{1}{2}0^{-}$等态的强衰变,这将有助于进一步实验研究这些D介子的混合。

英文摘要:

In this work, we tentatively assign the charmed mesons $D_{J}(2580)$, $D_{J}^{*}(2650)$, $D_{J}(2740)$, $D_{J}^{*}(2760)$, $D_{J}(3000)$ and $D_{J}^{*}(3000)$ observed by the LHCb collaboration according to their spin-parity and masses, then study their strong decays to the ground state charmed mesons plus light pseudoscalar mesons with the $^{3}P_{0}$ model. According to these study, we assigned the $D_{J}^{*}(2760)$ as the $1D\frac{5}{2}3^{-}$ state, the $D_{J}^{*}(3000)$ as the $1F\frac{5}{2}2^{+}$ or $1F\frac{7}{2}4^{+}$ state, the $D_{J}(3000)$ as the $1F\frac{7}{2}3^{+}$ or $2P\frac{1}{2}1^{+}$ state in the $D$ meson family. As a byproduct, we also study the strong decays of $2P\frac{1}{2}0^{+}$,$2P\frac{3}{2}2^{+}$, $3S\frac{1}{2}1^{-}$, $3S\frac{1}{2}0^{-}$ etc, states, which will be helpful to further experimentally study mixings of these $D$ mesons.

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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