Probing medium-induced energy loss with direct jet reconstruction in p+p and Cu+Cu collisions at PHENIX

We present the application of a new jet reconstruction algorithm that uses a Gaussian filter to locate and reconstruct the jet energy to p+p and heavy ion data from the PHENIX detector. This algorithm is combined with a fake jet rejection scheme that provides efficient jet reconstruction with an acceptable fake rate. We show our first results on the measured jet spectra, and on jet–jet angular correlation in p+p and Cu+Cu collisions.