Matthew Redshaw

Matthew Redshaw is a Professor and Chairperson in the Department of Physics at Central Michigan University (CMU), where he leads the Redshaw Penning Trap Group. His research is centered on high-precision mass measurements of atomic nuclei using Penning trap mass spectrometry, with applications in nuclear physics, astrophysics, and fundamental particle physics.

Education:

• Ph.D., Florida State University, Tallahassee, FL, 2007
• M.Phys., University of Surrey, Guildford, England, 2002

His research interests include experimental atomic and nuclear physics, precision measurement techniques, physics of exotic nuclei, and neutrinoless double beta-decay. He focuses on determining Q-values for rare decays to probe neutrino properties such as mass, nature (Majorana vs. Dirac), and the possible existence of sterile neutrinos. His group develops ultra-high-precision instruments like CHIP-TRAP, a double-Penning trap system housed in a 12-tesla magnet, enabling simultaneous mass comparisons of ion pairs with single-ion sensitivity.

The recent publications highlight a consistent focus on precision mass spectrometry to determine decay energies, especially for double-beta-decay candidates like ⁷⁴Se, ⁷⁶Ge, ¹³⁰Te, and ¹³⁶Xe, as well as dipole moment measurements of molecular ions such as HCO+, NH+, and PH+. These studies contribute to tests of fundamental physics, including E=mc², and modeling of nucleosynthesis in stellar environments.

Matthew Redshaw conducts research at national facilities including LEBIT at NSCL/FRIB and CPT at Argonne National Laboratory, while also advancing instrumentation at CMU. His work supports theoretical models in nuclear structure and neutrino physics, and informs next-generation experiments searching for physics beyond the Standard Model.