论文标题
在夸克模型方法中生产单链重子。
Production of single-charmed baryons in a quark model approach
论文作者
论文摘要
单链重子的产生$λ_c^+λ_c^ - $，$λ_c^+σ_c^ - $+ h.c。和$σ_C^+σ_c^ - $ in $ p \ bar p $ collisions在一个组成夸克模型的框架中研究了$ n \ bar n $ system和ntrageness $ p \ bar p \ tom / bar p \toλ\barλ$，$ n $，$ n $ cultions，$ n \ bar n $ system and of nimenties n $ collisions。分析了整个横截面的预测，用于通过一个gluon歼灭图介导的基础$ n \ bar n \ to c \ bar c $过程的不同方法。结果表明，横截面的订单为$ 1 $ nb之间的$ 10-14 $ GEV，$λ_C^+λ_C^ - $和$λ_C^+σ_c^ - $ channels，$ 0.01-0.1 $ nb $ nb for $σ_c^+σ_c^+σ_c^ - $。该估计可能与他们在$ \ bar {p} $ anda等设施中的未来搜索有关。
The production of single-charmed baryons $Λ_c^+ Λ_c^-$, $Λ_c^+ Σ_c^-$+h.c. and $Σ_c^+ Σ_c^-$ in $p\bar p$ collisions is studied in the framework of a constituent quark model which has satisfactorily described the $N\bar N$ system and the strangeness production $p\bar p\to Λ\bar Λ$, $Λ\barΣ$ and $Σ\barΣ$ processes. Predictions on the total cross sections are analyzed for different approaches to the underlying $n\bar n\to c\bar c$ process, mediated by one gluon annihilation diagrams. The results indicate that the cross section is of the order of $1$ nb between $10-14$ GeV for $Λ_c^+Λ_c^-$ and $Λ_c^+ Σ_c^-$ channels, and around $0.01-0.1$ nb for $Σ_c^+Σ_c^-$. This estimations can be relevant for their future search in facilities like $\bar{P}$ANDA.
