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Christopher Wrede, Ph.D., Assistant Professor of Physics

Research Associates:

David Perez-Loureiro, Ph.D., Research Associate

Curriculum Vitae

David received his Ph.D. from the University of Santiago de Compostela (Spain) in 2010. His dissertation dealt with the production of medium-mass neutron-rich nuclei using two different mechanisms: the fission of 238U and the projectile fragmentation of fission residues. In this research, the fragmentation of 132Sn was investigated for the first time. After receiving his degree he joined GANIL (France). There, he worked on the development of a next generation active target and time projection chamber (ACTAR TPC). He was mainly involved in the development of a Geant4-ROOT based simulation package to provide reliable simulations of various physics cases. He is currently working on the design and development of a gaseous detector for studies of beta-delayed low-energy proton emission in order to investigate resonances of particular interest in explosive stellar nucleosynthesis processes. He is performing detailed Geant4 simulations of this detector that will help to define its final geometry. David has analyzed, and is preparing a paper on, the beta-delayed gamma decay of 26P to 26Si, 25Al, and 24Mg. He is also the spokesperson for NSCL Experiment 15076, a planned precision mass measurement of the exotic nuclide 28S with the LEBIT Penning trap mass spectrometer for tests of fundamental symmetries.

Graduate Students:

Michael Bennett, B.S., 5th year Ph.D. candidate in Physics at MSU

Mike completed a B.S. cum laude in Physics, with minors in Music and Mathematics, in 2009 at Westmont College in Santa Barbara, California. While at Westmont he performed research with the 24” Keck Telescope as well as with the Cosmic Muon Detection Array. After graduating he worked at the Santa Barbara Museum of Natural History as Astronomy Programs Assistant before coming to NSCL in 2011. At MSU, Mike has co-led an experiment to constrain the 25Al(p, γ)26Si reaction rate, which influences the amount of 26Al produced in classical novae, and he has published paper on that work [Phys. Rev. Lett. 111, 232503 (2013)]. He is currently working on completing a thesis on the beta decay of 31Cl and the 30P(p, γ)31S reaction rate, which strongly influences nucleosynthesis in classical novae. The first results from that work were recently accepted for publicaiton [Phys. Rev. Lett. (2016)]. Mike is also the Graduate Outreach Representative for the NSCL and has served a term as the elected President of the Physics Graduate Organization.

Cathleen Fry, B.S., 3rd year Ph.D. candidate in Physics at MSU

Curriculum Vitae

Cathleen received her B.S. in Physics at Tennessee Technological University in 2013. She was involved in a project cataloguing the discovery of the isotopes at Michigan State as an REU student in 2011. In 2012, she was involved in an REU project at Notre Dame studying the feasibility of using deuterons as a probe to study the Isoscalar Giant Monopole Resonance. At Michigan State, she is currently supported by the NSCL and University Distinguished Fellowships. Her current focus is studying 35Ar to constrain the 34Cl(p, γ)35Ar reaction rate, which is relevant for nova nucleosynthesis. She has planned, executed, an analyzed an experiment to discover and measure 35Ar excited states at Maier-Leibnitz Laboratory in Munich. She recently published a paper on the results of this work, reporting the discovery of 17 new resonances [Phys. Rev. C 91, 015803 (2015)]. Cathleen is currently preparing for an experiment to measure the lifetimes of 30P(p, γ)31S resonances at Canada's national laboratory for nuclear and particle physics, TRIUMF, which will complement Michael Bennett's work on 31Cl beta decay.

Brent Glassman, B.S., 3rd year Ph.D. candidate in Physics at MSU

Brent received his B.S. in Physics at James Madison University in 2013. His undergraduate research dealt with the analysis of one-proton-removal reactions of proton-rich psd-shell nuclei for reactions relevant to novae. He is currently analyzing data from an experiment to study the CNO-cycle breakout reactions occurring on accreting compact stars and isospin-symmetry breaking related to tests of the Standard Model of particle physics via 20Mg beta decay. He recently published a paper demonstrating the revalidation of the isobaric multiplet mass equation in the A=20 quintet [Phys. Rev. C, 92, 042501(R) (2015)].

Sarah Schwartz, B.S., 2nd year M.S. candidate in Physics at MSU

Sarah received a B.S. in Mathematics, minoring in Physics, from the University of Southern Indiana in 2014. She was a participant in Michigan State University’s REU program in 2013. During that program and since she has been studying beta delayed proton-gamma emissions from 26P to 25Al to find the absolute intensities of the 25Al gamma rays emitted and has also focused on analyzing Doppler-broadening effects from that decay due to the recoil velocity of 25Al. She recently published a paper describing the first observation and application of radiative Doppler broadening in beta delayed proton-gamma decay [Phys. Rev. C 92, 031302(R) (2015)].

Undergraduate Students:

Madison Harris, Senior in Physics at MSU

Madison conducted research as part of Michigan State University's REU program in Summer 2015 and is continuing her work into the academic year as a Hantel Fellow. Her project involves simulating the performance of a new beta-delayed proton detector using different gas compositions and detector geometries.

Eric Aboud, Junior in Physics at MSU

Eric is conducting research as a Professorial Assistant. He is currently searching for new transitions in 32Cl beta decay data.