Exclusive photoproduction of heavy quarkonia pairs

被引：7
作者：
Andrade, Sebastian [1 ]
Siddikov, Marat
Schmidt, Ivan
机构：
[1] Univ Tecn Federico Santa Maria, Dept Fis, Casilla 110-V, Valparaiso, Chile
来源：
PHYSICAL REVIEW D | 2022年 / 105卷 / 07期
关键词：
VIRTUAL COMPTON-SCATTERING; WAVE-FUNCTIONS; VECTOR-MESONS; FLAVOR PRODUCTION; DIPOLE PICTURE; BOUND-STATES; FIELD-THEORY; COLOR GLASS; ELECTROPRODUCTION; QCD;
D O I：
10.1103/PhysRevD.105.076022
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
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 alpha(s). In the suggested mechanism, the quarkonia pairs are produced with opposite charge parities, and predominantly have oppositely directed transverse momenta. Using the Color Glass Condensate approach, we numerically estimate the production cross sections in the kinematics of the forthcoming electron-proton colliders, as well as proton-ion colliders in ultraperipheral collisions. We find that the cross sections are within the reach of planned experiments and can be measured with reasonable precision. The suggested mechanism has a significantly larger cross section than that of the same C-parity quarkonia pair production.
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页数：25
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