Recent ATLAS results from small collision systems

This talk presents recent ATLAS measurements from small collision systems. A particular focus will be on studies of jet production in p+Pb collisions to search for the jet quenching phenomenon in small systems. Further, the measurement of longitudinal flow decorrelation in pp collisions will be discussed. This study provides information on the initial longitudinal dynamics in small collision systems. These measurements provide stringent tests of the theoretical understanding of the initial state in heavy-ion collisions.