Single-lift Diffracted Heavy Quark Bi-prime Photoproduction With Quark-containing Processes

In the field of high energy physics,the heavy quarkonium has always been a hot spot in experimental and theoretical research.So far,although physicists have accumulated a wealth of experimental data in different energy regions,and have also developed many theories to describe the production of heavy quarkonium,the development of heavy quarkonium in various processes has yet to be improved.There is still a lack of detailed understanding of the mechanism of heavy quarkonium.Therefore,the study of the production of heavy quarkonium is still a frontier issue of high energy physics.Non-relativistic quantum chromodynamics(NRQCD)is a more mature factorization method for studying the production of heavy quarkonium.In this article,based on NRQCD,we will study the direct photoproduction process and the resolved photoproduction process of inclusive /?,?(2),and ?(1)based on NRQCD.By improving the sub-processes of partons(quarks and gluons)and combining the Pomeron model,we obtain an improved NRQCD model of the quark processes.We found that after considering the ,2),and processes in the photoproduction of the heavy quark pair,the total cross section of the heavy quarkonium produced is in good agreement with the existing experimental data in the HERA energy region.We extended the model to the LHC energy region and studied the rapidity distributions and transverse momentum of the inclusive diffractive /?,?(2)and ?(1)in , (7 and (7 (7 collisions.We find that the contribution rate of the quark subprocess to the rapidity distribution can reach 8%,and the contribution rate to the transverse momentum distribution can reach6%.Numerical results show that the contribution of the quarkonium processes to the photoproduction of heavy quarkonium is significant.