Physical Review Letters
Azimuthal angular correlations of charged hadrons with respect to the axis of a reconstructed (trigger) jet in Au + Au and p + p collisions √ˢᴺᴺ = 200 GeV in STAR are presented. The trigger jet population in Au + Au collisions is biased toward jets that have not interacted with the medium, allowing easier matching of jet energies between Au + Au and p + p collisions while enhancing medium effects on the recoil jet. The associated hadron yield of the recoil jet is significantly suppressed at high transverse momentum (passoc/T) and enhanced at low passoc/T in 0%-20% central Au + Au collisions compared to p + p collisions, which is indicative of medium-induced parton energy loss in ultrarelativistic heavy-ion collisions.
Original Publication Citation
Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., . . . Zyzak, M. (2014). Jet-hadron correlations in √ˢᴺᴺ =200 GeV p plus p and central Au plus Au collisions. Physical Review Letters, 112(12),122301. doi:10.1103/PhysRevLett.112.122301
Adamczyk, L.; Adkins, J. K.; Agakishiev, G.; Bültmann, S.; Koralt, I.; and STAR Collaboration, "Jet-Hadron Correlations in √ˢᴺᴺ = 200 GeV p + p and Central Au + Au Collisions" (2014). Physics Faculty Publications. 187.