论文标题
$λ_C^+$至$ d^0 $生产横截面比的测量
Measurement of the $Λ_c^+$ to $D^0$ production cross-section ratio in peripheral PbPb collisions
论文作者
论文摘要
我们报告了$λ_c^+$至$ d^0 $ d^0 $的生产比，$ \ sqrt {s _ {\ rm nn}} $ = 5.02 tev tev tev tev tev lhcb检测器在远期快速性区域$ 2 <y <y <4.5 $ <y <4.5 $。 The $Λ_c^+$ ($D^0$) hadrons are reconstructed via the decay channel $Λ_c^+\rightarrow pK^+π^-$ ($D^0 \rightarrow K^-π^+$) for $2<p_{\rm T}<8$ GeV$/c$ and in the centrality range of about 65-90%.结果表明，对$ p_ {t} $，$ y $或参与核子的平均数量没有显着依赖。它们也与PPB和PBP碰撞中的LHCB协作获得的类似测量值一致，$ \ sqrt {s _ {\ rm nn}} $ = 5.02 tev。该数据与$ \ sqrt {s} $ = 5 tev的pythia在PP碰撞中的预测非常吻合，但与统计强调模型的预测保持紧张。
We report on a measurement of the $Λ_c^+$ to $D^0$ production ratio in PbPb collisions at $\sqrt{s_{\rm NN}}$= 5.02 TeV with the LHCb detector in the forward rapidity region $2 <y< 4.5$. The $Λ_c^+$ ($D^0$) hadrons are reconstructed via the decay channel $Λ_c^+\rightarrow pK^+π^-$ ($D^0 \rightarrow K^-π^+$) for $2<p_{\rm T}<8$ GeV$/c$ and in the centrality range of about 65-90%. The results show no significant dependence on $p_{T}$, $y$ or the mean number of participating nucleons. They are also consistent with similar measurements obtained by the LHCb collaboration in pPb and Pbp collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV. The data agree well with predictions from PYTHIA in pp collisions at $\sqrt{s}$ = 5 TeV but are in tension with predictions of the Statistical Hadronization model.
