Marvin Marshak
Professor/Director of Undergrad Research at U of MN
318 Tate, 624-1312, email marshak @ umn.eduwww.physics.umn.edu/~marshak
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Research Areas: Properties of fundamental interactions, including measurement of neutrino mass, tests of stability of matter (proton decay); high energy cosmic ray physics and astrophysics.
Current Research
I do experiments to determine the characteristics of the fundamental forces in Nature using both particle accelerators and non-accelerator techniques, such as massive detectors to search for proton decay - the spontaneous conversion of matter to energy. I also study very high energy cosmic rays which are incident on the earth from outer space to determine their nature and origin. A particular interest is non-thermal stars as a possible source of cosmic radiation.
Selected Publications
M. Sanchez, et al., Observations of Atmospheric Neutrino Oscillations in Soudan 2, submitted to Phys. Rev. D, (2003).
D. DeMuth et al, Horizontal Muons and A Search for AGN Neutrinos in Soudan 2, Phys. Rev. D, to be published, (2003).
J. Chung, et al., Search for Neutron Anti-Neutron Oscillations Using Multi-Prong Events in Soudan 2, Phys. Rev. D66, 032004 (2002).
D. Wall, et al., Search for Nucleon Decay into Lepton + K0 Final States Using Soudan 2, Phys. Rev. D, 61, 072004 (2000).
S.M. Kasahara, et al., Study of Cosmic Ray Composition in the Knee Region Using Multiple Muon Events in the Soudan 2 Detector, Phys. Rev. D, 55, 5282-94 (1999).
W.W.M. Allison, et al., Measurement of the Atmospheric Neutrino Flavour Composition In Soudan 2, Phys. Lett. B, 391, 491-500 (1999).
W.W.M. Allison et al., Search for the Proton Decay Mode p To nK+ In Soudan 2,, Physics Letters B, 427, 217-24 (1998).
Education
M.S., Physics, University of Michigan, 1969.
A.B., Cornell University, 1967.