Reinhard Schumacher-Dept of Physics - Carnegie Mellon University

Reinhard Schumacher

Professor, Physics

Office: Wean Hall 8406
Phone: 412-268-5177
Fax: 412-681-0648


Ph.D., Massaschusetts Institute of Technology


Quark interaction physics explores sub-atomic particle systems at the boundary between the quark-gluon and meson-baryon descriptions of matter. The field addresses questions that, as a practical matter, do not require the highest beam energies or luminosities, but do call for high-precision measurements using specialized equipment. At Carnegie Mellon we have a large research group doing Quark Interaction Physics.

Currently, my main area of work is in the electromagnetic production of strange particles (kaons and hyperons). The production of strange-quark pairs via the well-known electromagnetic interaction gives us an avenue for refining our knowledge of baryon resonances, coupling constants, and polarization observables; the results are compared with modern quark models and with unitarized chiral perturbation theory. This work is being done at the Thomas Jefferson National Accelerator Facility. More exactly, my experimental work is done using the CEBAF Large Acceptance Spectrometer (CLAS) in Hall B and using the GlueX detector (GlueX) in Hall D at Jefferson Lab.

Selected Publications