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arXiv 2202.03288hep-phhep-ex
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重夸克偶对的光生排斥

Exclusive photoproduction of heavy quarkonia pairs

Sebastián Andradé, Marat Siddikov, Iván Schmidt

摘要:

本文研究了强耦合常数为$α_{s}$的重夸克偶对的高能独占光生。在建议的机制中,夸克偶产生相反的电荷宇称,并具有主要相反方向的横动量。使用彩色玻璃凝聚体的方法,我们估计的生产横截面的运动学即将到来的电子-质子对撞机,以及质子-离子对撞机在超周边碰撞。我们发现横截面在计划的实验范围内,可以以合理的精度进行测量。所提出的机制比相同的$C$ -宇称夸克偶产生的截面大得多。

英文摘要:

In this paper we study the high energy exclusive photoproduction of heavy quarkonia pairs in the leading order of the strong coupling constant $α_{s}$. In the suggested mechanism the quarkonia pairs are produced with opposite charge parities, and have predominantly oppositely directed transverse momenta. Using the Color Glass Condensate approach, we estimated numerically the production cross-sections in the kinematics of the forthcoming electron-proton colliders, as well as proton-ion colliders in ultraperipheral collisions. We found that the cross-sections are within the reach of planned experiments and can be measured with reasonable precision. The suggested mechanism has significantly larger cross-section than that of the same $C$-parity quarkonia pair production.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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