论文标题

异国情调状态的研究$ z_c^{\ pm}(3900)$衰减到$ j/ψπ^{\ pm} $ in $ pp $ collisions in $ \ sqrt {s} $ = 1.96、7和13 TEV

The study of exotic state $Z_c^{\pm}(3900)$ decaying to $J/ψπ^{\pm}$ in the $pp$ collisions at $\sqrt{s}$ = 1.96, 7, and 13 TeV

论文作者

Zhang, Zhen, Zheng, Liang, Chen, Gang, Xu, Hong-Ge, Zhou, Dai-Mei, Yan, Yu-Liang, Sa, Ben-Hao

论文摘要

动态约束的相位合并模型加PACIAE模型用于预测异国共振状态$ z_c^{\ pm}(3900)$屈服,横向动量分布和$ | y |的速度分布。 <6 $和$ p_t <10 $ gev/c in $ pp $ collisisions $ \ sqrt {s} = 1.96、7 $和13 tev。 $ z_c^{\ pm}(3900)$的产量估计约为$ 10^{ - 6} $至$ 10^{ - 5} $。我们还介绍了$ {z_c^{+}(3900)} $和$ {z_c^{ - }(3900)} $的横向动量分布和速度分布的能量依赖性。 $ {z_c^{+}(3900)} $的生产及其抗颗粒$ {z_c^{ - }(3900)} $彼此之间非常相似。

A dynamically constrained phase-space coalescence model plus PACIAE model was used to predict the exotic resonant state $Z_c^{\pm}(3900)$ yield, transverse momentum distribution, and the rapidity distribution with $|y| < 6$ and $p_T < 10$ GeV/c in $pp$ collisions at $\sqrt{s} = 1.96, 7$ and 13 TeV, respectively. The yield of the $Z_c^{\pm}(3900)$ is estimated to be around $10^{-6}$ to $10^{-5}$. We also present the energy dependence of the transverse momentum distributions and rapidity distributions for ${Z_c^{+}(3900)}$ and ${Z_c^{-}(3900)}$. The production of ${Z_c^{+}(3900)}$ and its anti-particle ${Z_c^{-}(3900)}$ is found to be quite similar to each other.

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