论文标题
Double Charm $ t_ {cc}^+$ tun tun tun tun tun tun tun tun tun tun tun tun tun tun tun tun tun tun untemon诱导
The quasi-fission phenomeonon of double charm $T_{cc}^+$ induced by nucleon
论文作者
论文摘要
在这项工作中，我们研究了核子和双重诱人状态$ t_ {cc} $的反应。 Under the assumption of the $T_{cc}$ as a molecular state of $D^{*}D$, the reaction of the nucleon and $T_{cc}$ is mediated by exchanges of $π$, $η$, $ρ$, and $ω$ meson, which results in split of $T_{cc}$ state with two $D$ mesons in final state.在有效的拉格朗日人的帮助下，计算$ p+t^+_ {cc} \至p+d^++ d^0 $过程的横截面，并且可以使用非常小的质子动量获得很大的横截面。它随着GEV阶数动量的增加到约10 MB的增加而迅速降低。如此大的横截面表明，质子诱导的$ t_ {cc}^+$状态非常容易衰减，并过渡到两个$ d $ erson。在$ t_ {cc}^+$状态的其余框架中，可以在预测的dalitz图中观察到最终$ d $梅森在小动量区域的明显积累，这是由于$ t_ {cc} $状态的分子状态解释所致。这种新颖的准膜膜叶状现象是双魅力分子$ t_ {cc}^+$状态由质子诱导的状态，可以在即将举行的熊猫实验中访问。
In this work, we study the reaction of a nucleon and a doubly charmed state $T_{cc}$. Under the assumption of the $T_{cc}$ as a molecular state of $D^{*}D$, the reaction of the nucleon and $T_{cc}$ is mediated by exchanges of $π$, $η$, $ρ$, and $ω$ meson, which results in split of $T_{cc}$ state with two $D$ mesons in final state. With the help of the effective Lagrangians, the cross section of $p+T^+_{cc}\to p+D^++D^0$ process is calculated, and a very large cross section can be obtained with very small incoming momentum of proton. It decrease rapidly with the increase of the momentum to about 10 mb at momenta of order of GeV. Such large cross section suggests that induced by a proton the $T_{cc}^+$ state is very easy to decay and transit to two $D$ mesons. In the rest frame of the $T_{cc}^+$ state, an obvious accumulation of final $D$ meson at small momentum region can be observed in predicted Dalitz plot, which is due to the molecular state interpretation of $T_{cc}$ state. This novel quasi-fission phenomenon of double charm molecular $T_{cc}^+$ state induced by a proton can be accessible at the forthcoming PANDA experiment.
