Speaker
Beomgon Kim
(Korea University (KR))
Description
Ultra-peripheral collisions (UPCs) of heavy ions involve long-range interactions at impact parameters larger than the sum of their radii, for which the hadronic interactions are largely suppressed. In such UPC events, the jets can be produced in processes such as gamma-nucleus interactions. The study of di-jet photoproduction by gamma-nucleus interactions at high energy offer a unique opportunity to study hadron structure and low Bjorken-x gluon dynamics. The first measurement of photonuclear jets in ultra-peripheral PbPb collisions using data taken in 2015 will be presented, using the CMS detector at the LHC.
Author
Arnd Meyer
(Rheinisch Westfaelische Tech. Hoch. (DE))
