Luis Anchordoqui's main area of research involves cosmic ray astrophysics and neutrino astronomy, with applications to particle physics and cosmology. He is a member of the Pierre Auger Collaboration

Cosmic ray astrophysics and accelerator-based particle physics share common roots, and in fact many of the key discoveries early in the history of particle physics came from the study of cosmic rays. After a period of divergence between the two fields, both in methodology and in key areas of interest, a confluence is now underway. Observations at the Pierre Auger cosmic ray observatory, the IceCube neutrino telescope, and the Large Hadron Collider will together in the coming decade provide an unprecedented capability for simultaneous discovery in both elementary particle physics and high energy astrophysics. Professor Anchordoqui is investigating a number of subjects that exploit this synergy, with the goal of searching for new physics beyond the highly successful but conceptually incomplete Standard Model of Weak, Electromagnetic, and Strong Interactions.