James Kneller

Assistant Professor Specializes in Physics

Contact Information Physics Department NC State University Box 8202 Raleigh, NC 27695 Work Address: 400e Riddick Hall Phone: (919) 513-4826

Areas of Interest Jim Knellers research focuses upon nuclear/particle astrophysics at different epochs in the history of the Universe from the Big Bang through to the present day. In recent years he has paid particular attention to the evolving flavor composition of neutrinos as they propagate through supernovae and how various mechanisms that drive that evolution manifest themselves in the signal we expect to observe when we next detect the burst from a Galactic supernova. From this signal he hopes to tease out the unknown properties of the neutrino such as the ordering of the neutrino masses, the size of the last mixing angle, the CP phase etc. as well as information about the explosion that can be used to test simulations. Other interests include the early Universe especially Big Bang Nucleosynthesis and the Cosmic Microwave Background and their utility as probes of particle physics, Cosmic Ray Spallation and Cosmic and Galactic Chemical Evolution of the light nuclei. Recent Publications Shockwaves in Supernovae: New Implications on the Diffuse Supernova Neutrino Background S. Galais, J.P. Kneller, C. Volpe, J. Gava Phys. Rev. D, 81, 053002 (2010) Three Flavor Neutrino Oscillations in Matter: Flavor Diagonal Potentials, the Adiabatic Basis and the CP phase J.P. Kneller & G.C. McLaughlin Phys. Rev. D, 80, 053002 (2009) TOPICAL REVIEW: Neutrino flavour transformation in supernovae H. Duan & J.P. Kneller J. Phys. G: Nucl. Part. Phys., 36, 113201 (2009) A Dynamical collective calculation of supernova neutrino signals J. Gava, J.P. Kneller, C. Volpe & G.C. McLaughlin Phys. Rev. Let., 103, 071101 (2009) Oscillation Effects and Time Variation of the Supernova Neutrino Signal J.P. Kneller, G.C. McLaughlin & J. Brockman Phys. Rev. D, 77, 045023 (2008) Neutrino scattering, absorption and annihilation above the accretion disks of Gamma Ray Bursts J.P. Kneller, G.C. McLaughlin & R. Surman Journal of Physics G, 32, 443 (2006) Monte Carlo Neutrino Oscillations J.P. Kneller & G.C. McLaughlin Phys. Rev. D, 73, 056003 (2006) Measuring the amount of dark radiation with the CMB and BBN J.P. Kneller Nuclear Physics B, 138, 73 (2005) BBN for pedestrians J.P. Kneller & G. Steigman New J. of Physics, 6, 117 (2004) Effect of bound dineutrons upon big bang nucleosynthesis J.P. Kneller & G.C. McLaughlin Phys. Rev. D, 70, 043512 (2004) BBN and LambdaQCD J.P. Kneller & G.C. McLaughlin Phys. Rev. D, 68, 103508 (2003) Inverse power law quintessence with non-tracking initial conditions J.P. Kneller & L. Strigari Phys. Rev. D, 68, 083517 (2003) Hiding relativistic degrees of freedom in the early universe V. Barger, J.P. Kneller, P. Langacker, D. Marfatia, G. Steigman Phys. Lett. B, 569, 123 (2003) Effective number of neutrinos and baryon asymmetry from BBN and WMAP V. Barger, J.P. Kneller, H-S. Lee, D. Marfatia, G. Steigman Phys. Lett. B, 566, 8 (2003) Testing two nuclear physics approximations used in the standard leaky box model for the spallogenic production of LiBeB J.P. Kneller, J.R. Phillips, T.P. Walker Astrophys. J., 589, 217 (2003) BBN and CMB constraints on dark energy J.P. Kneller & G. Steigman Phys. Rev. D,, 67, 063501 (2003) How does CMB + BBN constrain new physics? J.P. Kneller, R.J. Scherrer, G. Steigman, T.P. Walker Phys. Rev. D, 64, 123506 (2001)