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arXiv 1803.01657hep-phhep-ex
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带有两个重夸克的奇异重子

Strange baryons with two heavy quarks

Marek Karliner, Jonathan L. Rosner

摘要:

欧洲核子研究中心的LHCb实验观测到了一个质量为$3621.40 \pm 0.78$ MeV的双粲重子$Ξ_{cc}^{++} =ccu$,与许多预言一致。我们使用与预测$M(Ξ_{cc},~J^P{=}1/2^+) = 3627 \pm 12$ MeV和$M(Ξ_{cc}^*,~J^P{=}3/2^+) = 3690 \pm 12$ MeV相同的方法来预测$M(Ω_{cc}^+,J^P{=}1/2^+) = 3692 \pm 16$ MeV和$M(Ω_{cc}^*,~J^P{=} 3/2^+) = 3756 \pm 16$ MeV。生产和衰变进行了简要讨论,并预测$M(Ω_{bc})$和$M(Ω_{bb})$包括在内。

英文摘要:

The LHCb Experiment at CERN has observed a doubly-charmed baryon $Ξ_{cc}^{++} =ccu$ with a mass of $3621.40 \pm 0.78$ MeV, consistent with many predictions. We use the same methods that led us to predict $M(Ξ_{cc},~J^P{=}1/2^+) = 3627 \pm 12$ MeV and $M(Ξ_{cc}^*,~J^P{=}3/2^+) = 3690 \pm 12$ MeV to predict $M(Ω_{cc}^+,J^P{=}1/2^+) = 3692 \pm 16$ MeV and $M(Ω_{cc}^*,~J^P{=} 3/2^+) = 3756 \pm 16$ MeV. Production and decay are discussed briefly, and predictions for $M(Ω_{bc})$ and $M(Ω_{bb})$ are included.

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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