Arts & Sciences Professor of Physics
Prof. Scholberg's broad research interests include experimental elementary particle physics, astrophysics and cosmology. Her main specific interests are in neutrino physics: she studies neutrino oscillations with the Super-Kamiokande experiment, a giant underground water Cherenkov detector located in a mine in the Japanese Alps. Super-K was constructed to search for proton decay and to study neutrinos from the sun, from cosmic ray collisions in the atmosphere, and from supernovae. On Super-K, Prof. Scholberg's primary involvement is with the atmospheric neutrino data analysis, which in 1998 yielded the first convincing evidence for neutrino oscillation (implying the existence of non-zero neutrino mass).
One of the most important questions that we may be able to answer with neutrino oscillation experiments over the next couple of decades is the question of CP (charge conjugation-parity) violation in neutrinos. It's now well known that processes involving quarks violate CP symmetry; it's suspected that the same is true for leptons (such as neutrinos), but leptonic CP violation is as yet unobserved. We hope that understanding of CP violation, along with knowledge of the other neutrino parameters, may lead to insight into the question of the observed matter-antimatter asymmetry of the universe. The long-term program neutrino oscillation physics aims to answer these questions.
The next steps in neutrino oscillation research involve artificial beams of neutrinos sent hundreds of kilometers from accelerator laboratories to underground detectors. The T2K ("Tokai to Kamioka") high-intensity beam experiment sends neutrinos 300 km from an accelerator at the J-PARC facility in Japan to Super-K, and is currently exploring unknown oscillation parameters. The DUNE (Deep Underground Neutrino Experiment) is a planned next-generation U.S.-based international experiment designed to observe neutrinos beamed from Fermilab to a large liquid argon detector at a new underground facility in South Dakota. One of Prof. Scholberg's particular interests on DUNE is the detector's sensitivity to the huge bursts of neutrinos from core-collapse supernovae.
Prof. Scholberg served as spokesperson of COHERENT, a multi-detector experiment with the primary physics goal of measuring CEvNS (Coherent Elastic Neutrino Nucleus Scattering) using the high-intensity neutrinos produced by the Spallation Neutron Source at Oak Ridge National Laboratory in Tennessee. CEvNS was measured for the first time by the collaboration in 2017.
Prof. Scholberg also coordinates SNEWS, the SuperNova Early Warning System, an inter-experiment collaboration of detectors with Galactic supernova sensitivity. Neutrinos from a core collapse will precede the photon signal by hours; therefore coincident observation of a burst in several neutrino detectors will be a robust early warning of a visible supernova. The goals of SNEWS are to provide the astronomical community with a prompt alert of a Galactic core collapse, as well as to optimize global sensitivity to supernova neutrino physics.
MRI: Acquisition of a High-Resolution Stereoscopic Interactive Visualization System for Research and Education in Scienc awarded by National Science Foundation (Investigator). 2014 to 2016
Photon Simulation in LBNE awarded by (Principal Investigator). 2014 to 2015
Research in High Energy Physics at Duke University awarded by Department of Energy (Co-Principal Investigator). 1991 to 2013
Conference for Undergraduate Women in Physics awarded by National Science Foundation (Principal Investigator). 2010 to 2011
CAREER: Next Steps for Neutrino Oscillation Physics awarded by National Science Foundation (Principal Investigator). 2004 to 2010
Research in High Energy Physics at Duke University awarded by Department of Energy (Co-Principal Investigator). 1991 to 2009
Hadron Collider Physics Conference awarded by National Science Foundation (Principal Investigator). 2006 to 2007
Collaborative Research: SNEWS: The Supernova Early Warning System awarded by National Science Foundation (Principal Investigator). 2004 to 2006
Abe, K., et al. “Search for Neutrinos in Super-Kamiokande Associated with the GW170817 Neutron-star Merger.” Astrophysical Journal Letters, vol. 857, no. 1, Apr. 2018. Scopus, doi:10.3847/2041-8213/aabaca. Full Text
Abe, K., et al. “Atmospheric neutrino oscillation analysis with external constraints in Super-Kamiokande I-IV.” Physical Review D, vol. 97, no. 7, Apr. 2018. Scopus, doi:10.1103/PhysRevD.97.072001. Full Text
Abe, K., et al. “Measurement of the single π 0 production rate in neutral current neutrino interactions on water.” Physical Review D, vol. 97, no. 3, Feb. 2018. Scopus, doi:10.1103/PhysRevD.97.032002. Full Text
Scholberg, K. “Supernova signatures of neutrino mass ordering.” Journal of Physics G: Nuclear and Particle Physics, vol. 45, no. 1, Jan. 2018. Scopus, doi:10.1088/1361-6471/aa97be. Full Text Open Access Copy
Abe, K., et al. “First measurement of the νμ charged-current cross section on a water target without pions in the final state.” Physical Review D, vol. 97, no. 1, Jan. 2018. Scopus, doi:10.1103/PhysRevD.97.012001. Full Text
Abe, K., et al. “Search for an Excess of Events in the Super-Kamiokande Detector in the Directions of the Astrophysical Neutrinos Reported by the IceCube Collaboration.” Astrophysical Journal, vol. 850, no. 2, Dec. 2017. Scopus, doi:10.3847/1538-4357/aa951b. Full Text
Abe, K., et al. “Measurement of neutrino and antineutrino oscillations by the T2K experiment including a new additional sample of ve interactions at the far detector.” Physical Review D, vol. 96, no. 9, Nov. 2017. Scopus, doi:10.1103/PhysRevD.96.092006. Full Text
Abe, K., et al. “Measurement of ν¯μ and νμ charged current inclusive cross sections and their ratio with the T2K off-axis near detector.” Physical Review D, vol. 96, no. 5, Sept. 2017. Scopus, doi:10.1103/PhysRevD.96.052001. Full Text
Akimov, D., et al. “Observation of coherent elastic neutrino-nucleus scattering..” Science (New York, N.Y.), vol. 357, no. 6356, Sept. 2017, pp. 1123–26. Epmc, doi:10.1126/science.aao0990. Full Text
Abe, K., et al. “Search for nucleon decay into charged antilepton plus meson in 0.316 megaton·years exposure of the Super-Kamiokande water Cherenkov detector.” Physical Review D, vol. 96, no. 1, July 2017. Scopus, doi:10.1103/PhysRevD.96.012003. Full Text