Probing charmonium-like XYZ states in hadron–hadron ultraperipheral collisions and electron–proton scattering
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AbstractExclusive production of charmonium-like XYZ states in hadron–hadron ultraperipheral collisions (UPCs) and electron–proton scattering are studied employing the effective Lagrangian method. Total cross sections and rapidity distributions of charmonium-like XYZ states are obtained in hadron–hadron UPCs and the electron–proton scattering process. These predictions can be applied to estimate the observed event number of exclusive charmonium-like XYZ states in hadron–hadron UPCs and electron–proton scattering. The results indicate that it is significant to search X(3872) and $$Z^+_c(3900)$$ Z c + ( 3900 ) in pA UPCs, and the Electron–Ion Collider in China will be an advantageous platform to observe XYZ states in the future.
2014 ◽
Vol 29
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pp. 1460244
1973 ◽
Vol 335
(1603)
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pp. 431-452
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2019 ◽
Vol 34
(36)
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pp. 1950298
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2014 ◽
Vol 23
(06)
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pp. 1460002
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