论文标题
pp碰撞中LHC能量的魅力Hadron在聚结中的魅力和分裂方法
Charm Hadrons in pp collisions at LHC energy within a Coalescence plus Fragmentation approach
论文作者
论文摘要
$ \ sqrt {s} = 5.02 \，\ rm tev $对$ pp $碰撞的最新实验测量表明，大量的重型baryon产量非常丰富，对应于$λ_c/d^0 \ sim 0.6 $的比率，大约比$ e^$ e^+e^$ e^+e^-e^$ e^+collivions of pl的比率。但是在前进的速度上。我们首次申请$ pp $碰撞，夸克结合加上针对$ aa $碰撞的分裂方法，假设在有限温度下形成了热QCD物质。在RHIC Energy在AA碰撞中正确预测$λ_C/d \ sim O（1）$的方法。 We calculate the heavy baryon/meson ratio and the $p_T$ spectra of charmed hadrons with and without strangeness content: $D^{0}$, $D_{s}$, $Λ_{c}^{+}$, $Ξ_c$ and $Ω_c$ in $pp$ collisions at top LHC energies, finding a satisfactory result for the measured $λ_{c}^{+}/d^0 $和$ξ_c/d^0 $，而没有任何特定的参数调整到$ pp $ collisions。与其他方法的不同，合并方法还可以预测$ω_c$的显着产生，从而使$ω_c/d^0 \ sim O（10^{ - 1}）$。
The recent experimental measurements on $pp$ collisions at $\sqrt{s}=5.02 \,\rm TeV$ have shown a very large abundance of heavy baryon production corresponding to a ratio of $Λ_c/D^0 \sim 0.6$, about one order of magnitude larger than what measured in $e^+e^-$, $ep$ collisions and even in $pp$ collisions at LHC, but at forward rapidity. We apply for the first time to $pp$ collisions a quark coalescence plus fragmentation approach developed for $AA$ collisions, assuming the formation of Hot QCD matter at finite temperature. An approach that has correctly predicted a $Λ_c/D \sim O(1)$ in AA collisions at RHIC energy. We calculate the heavy baryon/meson ratio and the $p_T$ spectra of charmed hadrons with and without strangeness content: $D^{0}$, $D_{s}$, $Λ_{c}^{+}$, $Ξ_c$ and $Ω_c$ in $pp$ collisions at top LHC energies, finding a satisfactory result for the measured $Λ_{c}^{+}/D^0$ and the $Ξ_c/D^0$ without any specific tuning of parameters to $pp$ collisions. At variance with other approaches a coalescence approach predicts also a significant production of $Ω_c$ such that $Ω_c/D^0 \sim O(10^{-1})$ .
