Abstract
Systematic nuclear effects discovered in the production ofJ/ψ particles in high-energy proton-nucleus collisions cannot be explained within the conventional picture in which a heavy color singlet\(Q\bar Q\) pair, after its production, experiences multiple scattering from nucleons of the residual nucleus. We propose to take into account color octet intermediate states formed in the primary production of the heavy-quark pairs. Using a perturbative QCD analysis we study the microscopic production mechanism for\(Q\bar Q\) pairs through gluon-gluon fusion with subsequent color neutralization in a strongly interacting medium. The influence of the surrounding matter on this process is investigated.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
