Lu Lu

Lu Lu is an assistant professor at UW–Madison in the Department of Physics. Her ultimate goals are to discover the origins of the highest energy particles and to understand their acceleration mechanisms. She did her Ph.D., on searching for EeV photons, at the University of Leeds and Universität Wuppertal. She then moved to Chiba, Japan, and performed searches for PeV neutrinos using IceCube data, leading to the detection of the first Glashow resonance neutrino candidate. She is a member of the IceCube Real-time Oversight Committee and focuses on the extreme-high-energy (EHE) alert channel. She also contributed to R&D of a new sensor designed for the IceCube Upgrade and will continue efforts for the high-energy extension of IceCube-Gen2. As a hobby project, she co-developed an augmented reality app, ICEcuBEAR, to visualize IceCube real-time alerts on mobile phones.

Select Publications

Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A
The IceCube, Fermi-LAT, MAGIC, AGILE, ASAS-SN, HAWC, H.E.S.S, INTEGRAL, Kanata, Kiso, Kapteyn, Liverpool telescope, Subaru, Swift/NuSTAR, VERITAS, and VLA/17B-403 teams
(Journal Article) Science 361, eaat1378 (2018); DOI:10.1126/science.aat1378 |

Neutrino emission from the direction of the blazar TXS 0506+056 prior to the IceCube-170922A alert
IceCube Collaboration: M.G. Aartsen et al.
(Journal Article) Science 361, 147-151 (2018). DOI:10.1126/science.aat2890 |

Constraints on Ultrahigh-Energy Cosmic-Ray Sources from a Search for Neutrinos Above 10 PeV with IceCube
IceCube Collaboration: M. G. Aartsen et al
(Journal Article) Physical Review Letters 117 (2016) 241101; e-print archive arXiv:1607.05886 [hep-ex]; erratum ibid 119 (2017) 259902(E), 21 December 2017 | | |

Improved limit to the diffuse flux of ultrahigh energy neutrinos from the Pierre Auger Observatory
Pierre Auger Collaboration: A. Aab et al
(Journal Article) Phys. Rev. D 91, 092008 (2015); doi:10.1103/PhysRevD.91.092008

The use of Cherenkov light in the detection of high-energy cosmic rays and neutrinos: The Pierre Auger and IceCube Observatories
L. Lu and T. Yuan
(Journal Article) Nucl. Instrum. Meth. A, Volume 970, 163678 (2020); doi:10.1016/j.nima.2020.163678

Honors and Awards

    • Co-convener of IceCube Diffuse Working Group (2020-present)
    • IceCube Impact Award (2019)
    • DAAD (German Academic Exchange Service) Scholarship (2013)
    • Poster Prize at the British Nuclear and Particle Physics Division Conference (2011)


University of Wisconsin–Madison
Department of Physics
Chamberlin Hall
Madison, Wisconsin
222 W Washington Ave
5th floor
Madison, WI 53703

Faculty Profiles

WIPAC faculty and students are involved in IceCube, the Askaryan Radio Array (ARA), the High-Altitude Water Cherenkov (HAWC) experiment, Cherenkov Telescope Array (CTA), Big Data, and DM-Ice.


In keeping with our vision, we encourage and support visits from researchers who have interests, or who wish to develop interests, in several of our research areas.


The postdoctoral fellowship program was created to honor the late John Bahcall, a prominent physicist and a founding member of the IceCube experiment.  In 2015 the Balzan Fellowship was created after Francis Halzen was awarded the Balzan Prize.