UCLA

This paper reports measurements of the transverse energy per unit pseudorapidity (dET/dη) produced in Au+Au collisions at sNN=200GeV, performed with the sPHENIX detector at the Relativistic Heavy Ion Collider (RHIC). The results cover the pseudorapidity range |η|<1.1 and constitute the first such measurement performed using a hadronic calorimeter at RHIC. Measurements of dET/dη are presented for a range of centrality intervals and the average dET/dη as a function of the number of participating nucleons, Npart, is compared to a variety of Monte Carlo heavy-ion event generators. The results are in agreement with previous measurements at RHIC, and feature an improved granularity in η and improved precision in low-Npart events.