论文标题
在假设它是分子或混合状态的假设下,通过KAON引起的反应的$η_{1}(1855)$的产生
Production of the $η_{1}(1855)$ through kaon induced reactions under the assumptions that it is a molecular or a hybrid state
论文作者
论文摘要
通过Kaon与质子相互作用的反应,我们研究了新观察到的$η_{1}(1855)$的产生,预测了$ k \ bar {k} _1(1400)$分子状态和杂交状态。计算了混凝土$ k^{ - } p \toη_{1}(1855)λ$反应的总和横截面。将$η_{1} $的部分衰减宽度占$ k \ bar {k}^{\ ast} $为0.9 meV和98.1 meV,$η_{1}(1}(1855)的最小横截面(1855)$通过$ k^{ - } p $反应的产生in 0.59 $ nb $ nb an $ w \ simeq 3.5 $ gev。 $η_{1}(1855)$生产的差分横截面也可以提供。此外,我们介绍了$ 2 \ rightarrow 3 $和$ 2 \ rightarrow 4 $的Dalitz流程,最初讨论了在J-Parc等实验中找到$η_{1}(1855)$的可行性。
By the reaction of kaon interacting with a proton, we investigate the production of the newly observed $η_{1}(1855)$ predicted in the picture of the $K\bar{K}_1(1400)$ molecular state and hybrid state. The total and differential cross sections of the concrete $K^{-}p\toη_{1}(1855)Λ$ reaction are calculated. Taking the partial decay width of the $η_{1}$ to $K\bar{K}^{\ast }$ as 0.9 MeV and 98.1 MeV, the minimum cross section of the $η_{1}(1855)$ production via the $K^{-}p$ reaction can reach up 0.59 $nb$ and 63.8 $nb$ at the center of mass energies $W\simeq 3.5$ GeV, respectively. The differential cross sections for the $η_{1}(1855)$ production at the different center of mass energies are also available. Furthermore, we present the Dalitz processes of $2\rightarrow 3$ and $2\rightarrow 4$, and initially discuss the feasibility of finding out the $η_{1}(1855)$ in experiments like J-PARC.