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  Stefan Baeßler   Stefan Baeßler
Associate Professor , Experimental Nuclear and Particle Physics
Ph.D., 1996, University of Heidelberg

sfb5d@Virginia.EDU email   243-1024 tel 169 JBL Office

Professor Baeßler does research in fundamental physics with neutrons and related topics. His main activities are devoted to physics with cold neutrons at the SNS in Oak Ridge/Tennessee. He conducts experiments that study neutron beta decay (Nab) and in hadronic weak interactions (npdgamma). In addition, he is testing gravity with ultracold neutrons at the ILL in Grenoble/France (GRANIT).


D. Blyth, J. Fry, N. Fomin, R. Alarcon, L. Alonzi, E. Askanazi, S. Baeßler et al.
First Observation of P-odd γ Asymmetry in Polarized Neutron Capture on Hydrogen
Phys. Rev. Lett. 121, 242002 (2018), arXiv:1807.10192

S. Baeßler, V.V. Nesvizhevsky, G. Pignol, K.V. Protasov, D. Rebreyend, E. Kupriyanova, A. Yu. Voronin
Frequency shifts in gravitational resonance spectroscopy
Phys. Rev. D 91, 042006 (2015)

S. Baeßler, D. Bowman, S. Penttilä, D. Pocanic
New precision measurements of free neutron beta decay with cold neutrons invited paper for focus issue The precision frontier in semileptonic weak interactions
J. Phys. G: Nucl. Part. Phys. 41, 114003 (2014)

A. Salas Bacci, P.L. McGaughey, P.L., S. Baeßler, L. Broussard, M.F. Makela, J. Mirabal, R.W. Pattie, D. Pocanic, S.K.L. Sjue, S.I. Penttilä, W.S. Wilburn, A.R. Young, B.A. Zeck, Z. Wang
Characterization of large area, thick and segmented Silicon detectors for neutron β-decay experiments
Nucl. Inst. Meth. A 735, 408 (2014)

S. Baeßler
Gravitationally bound quantum states of ultracold neutrons and their applications
J. Phys. G: Nucl. Part. Phys. 36, 104005 (2009)

Complete list

The weak interaction of quarks between the neutron and proton have been measured for the first time by the NPDGamma experiment at the Spallation Neutron Source in Oak Ridge ......More >
Dinko Pocanic and Stefan Baessler, in collaboration with colleagues from Arizona State University and Oak Ridge National Lab, have received funding for the development of a spectrometer optimized ......More >
  COURSES (Fall 2019)