Photoproduction of J/psi with forward hadron tagging in hadronic collisions
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论文类型：期刊论文
发表时间：2019-06-28
发表刊物：PHYSICAL REVIEW D
收录刊物：SCIE
卷号：99
期号：11
ISSN号：2470-0010
摘要：We study the photoproduction of J/psi using the nonrelativistic quantum chromodynamics formalism with forward hadron tagging at the Large Hadron Collider. We estimate the total cross sections and event rates with and without nuclear shadowing effects in high energy proton-proton, proton-nucleus, and nucleus-nucleus collisions. Our results show that the processes which involve J/psi photoproduction depend on the choice of forward detector acceptances xi. Under some precise cut of p(T)(J/psi) w and z(J/psi) kinematic variables, we find that the distributions of photoproduction of J/psi are led by the Fock state S-1(0)[8] or S-3(1)[1]. The total cross sections and event rates will be smaller if the nuclear shadowing effects are considered. The processes give a crucial photoproduction signature at the LHC with forward detector acceptances. The exploration and the detection of the interactions will be useful for studying the mechanism of heavy quarkonium production.
发表时间：2019-06-28