论文标题
$ p_ {c} $（4312）在电子普罗顿碰撞中的状态
Production of $P_{c}$(4312) state in electron-proton collisions
论文作者
论文摘要
我们研究了最近发现的五夸克州$ p_c（4312）$粒子的横截面，在电子普罗顿碰撞中，假设可能的量子数为$ j^{p} = \ frac {1} {1} {1} {2} {2} {2} {2}^\ pm，pm，\ frac，\ frac {3} {2} {2} {2}^\ pm $。 $ \ sqrt {s} $设置为布鲁克黑文国家实验室的未来电子离子对撞机的能量，以评估该设施中测量的可能性。可以通过比较质子和电子束的两种不同极化构型中的伪分布来区分$ p_c（4312）$的自旋。此外，可以通过分析$ p_c \ rightarrow p +j/ψ$通道中的衰减角度来识别$ p_c（4312）$的均等。由于我们的计算中$ P_C $生产的多重性很大，因此可以将EIC视为对重型五角星的精确度量的未来设施。
We study the cross sections for the electro-production of $P_c(4312)$ particle, a recently discovered pentaquark state, in electron-proton collisions assuming possible quantum numbers to be $J^{P}=\frac{1}{2}^\pm, \frac{3}{2}^\pm$. $\sqrt{s}$ is set to the energy of the future Electron Ion Collider at Brookhaven National Laboratory, in order to asses the possibility of the measurement in this facility. One can discriminate the spin of $P_c(4312)$ by comparing the pseudorapidity distribution in two different polarization configurations for proton and electron beams. Furthermore, the parity of $P_c(4312)$ can be discerned by analyzing the decay angle in the $P_c \rightarrow p +J/ψ$ channel. As the multiplicity of $P_c$ production in our calculation is large, the EIC can be considered as a future facility for precision measurement of heavy pentaquarks.
