论文标题

$ j/ψψ(3686)$,$ j/ψψ(3770)$,$ψ(3686)ψ(3686)$和$ j/ψυ(1s)$在Hadron colliders中,$ j/ψψ(3770)$不变质量谱中的完全重型结构。

Fully-heavy structures in the invariant mass spectrum of $J/ψψ(3686)$, $J/ψψ(3770)$, $ψ(3686) ψ(3686)$, and $J/ψΥ(1S)$ at hadron colliders

论文作者

Wang, Jun-Zhang, Liu, Xiang, Matsuki, Takayuki

论文摘要

由LHCB [J.〜Z。〜Wang \ textit {et al。} arxiv:2008.07430]在di- $ j/ψ$中的最新成功的动态解释激励,以di-$ j/ψ$的质量范围$ x(6900)$ $ j/ψψ(3686)$,$ j/ψψ(3770)$,$ψ(3686)ψ(3686)$和$ j/ψυ(1s)$的光谱在高能质子proton碰撞中,其在实验中的验证应有助于进一步阐明$ x(6900)$ x(6900)$。上述矢量重夸克尼亚的最终状态可以通过$μ^+μ^ - $ $ $ $^ - $ q \ bar {q} $中的$μ^+μ^ - $ pair在实验中更有效地重建。此外,还给出了每个预测的完全重型结构的相应峰值质量位置。我们这里的理论研究可以为LHCB和CMS的未来测量建议提供一些有价值的信息,尤其是基于在不久的将来完成LHC运行III后的累积数据。

Motivated by a recent successful dynamical explanation for the newly observed fully-charm structure $X(6900)$ in the mass spectrum of di-$J/ψ$ by LHCb [J.~Z.~Wang \textit{et al.} arXiv:2008.07430], in this work, we extend the same dynamical rescattering mechanism to predict the line shape of more potential fully-heavy structures in the invariant mass spectrum of $J/ψψ(3686)$, $J/ψψ(3770)$, $ψ(3686) ψ(3686)$, and $J/ψΥ(1S)$ at high energy proton-proton collisions, whose verification in experiments should be helpful to further clarify the nature of $X(6900)$. The above final states of vector heavy quarkonia can be experimentally reconstructed more effectively by a $μ^+μ^-$ pair in the muon detector compared with $Q\bar{Q}$ meson with other quantum numbers. Furthermore, the corresponding peak mass positions of each of predicted fully-heavy structures are also given. Our theoretical studies here could provide some valuable information for the future measurement proposals of LHCb and CMS, especially based on the accumulated data after completing Run III of LHC in the near future.

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