General Lab Information

Xin Qian

Research Staff 6 Physics, Electronic Detector Group, Physics Department

Xin Qian

Brookhaven National Laboratory

Physics Department
Bldg. 510E, Room 3-179
P.O. Box 5000
Upton, NY 11973-5000

(631) 344-3828

Preferred Gender Pronouns (PGPs): he, him, his

I am also an Associate Adjunct Professor in the Department of Physics and Astronomy of the  Stony Brook University.

My physics interest lies on answering some of the remaining questions about neutrinos: i) are there new CP violations in the neutrino sector? ii) what is the nature of non-zero neutrino mass and mixing? and iii) are there new flavors of neutrino? I have been spending most of my time working on the development of the Liquid Argon Time Projection Chamber (LArTPC), which is a new and powerful detector technology to study accelerator neutrinos. Together with my colleagues, we came up with a new way of performing event reconstruction in LArTPC: Wire-Cell. This technique is expected to be crucial for upcoming LArTPC experiments: SBN and DUNE.

Recently, I am working to develop a new rare pion decay experiments: PIONEER, to test lepton flavor universality and CKM unitarity. See SNOWMASS white paper.

Prior working on particle physics, I worked on electron scattering experiments in understanding the spin structure of nucleon at Jefferson Lab.

Expertise | Research | Education | Appointments | Publications | Highlights | Awards


  • Physics analysis
  • Event reconstruction with LArTPC
  • Statistics
  • Detector R&D

Research Activities

Current Research:

Past Research:


  • Duke University, Durham, NC            Ph.D. Experimental Nuclear Physics            May 2010

  • Peking University, Beijing, China      B.S. Physics                                                      July 2003


Professional Appointments

  • Brookhaven National Laboratory,           Tenured Physicist                                  Apr. 2020 –

  • Stony Brook University,                             Associate Adjunct Professor              Sep. 2020 -

  • Brookhaven National Laboratory,           Physicist                                                  Oct. 2017-Apr. 2020

  • Brookhaven National Laboratory,           Associate Physicist                               Oct. 2015-Oct.2017

  • Brookhaven National Laboratory,           Assistant Physicist                               Oct. 2013-Oct. 2015

  • Brookhaven National Laboratory,          Research Associate                               May 2013-Oct. 2015

  • California Institute of Technology,        Robert A. Millikan Postdoctoral Scholar           2010-2013

Selected Publications

  • Adams C, An R, Anthony J, Asaadi J, Auger M, et al. (2018) Ionization electron signal processing in single phase LArTPCs. Part I. Algorithm Description and quantitative evaluation with MicroBooNE simulation. Journal of Instrumentation 13:P07006–P07006. doi: 10.1088/1748-0221/13/07/p07006
  • Abratenko P, Alrashed M, An R, Anthony J, Asaadi J, et al. (2021) Neutrino event selection in the MicroBooNE liquid argon time projection chamber using Wire-Cell 3D imaging, clustering, and charge-light matching. Journal of Instrumentation 16:P06043. doi: 10.1088/1748-0221/16/06/p06043
  • Abratenko P, Alrashed M, An R, Anthony J, Asaadi J, et al. (2021) Cosmic Ray Background Rejection with Wire-Cell LArTPC Event Reconstruction in the MicroBooNE Detector. Physical Review Applied. doi: 10.1103/physrevapplied.15.064071
  • Qian X, Peng J-C (2019) Physics with reactor neutrinos. Reports on Progress in Physics 82:036201. doi: 10.1088/1361-6633/aae881
  • Qian X, Zhang C, Viren B, Diwan M (2018) Three-dimensional imaging for large LArTPCs. Journal of Instrumentation 13:P05032–P05032. doi: 10.1088/1748-0221/13/05/p05032
  • Tang W, Li X, Qian X, Wei H, Zhang C (2017) Data Unfolding with Wiener-SVD Method. Journal of Instrumentation 12:P10002–P10002. doi: 10.1088/1748-0221/12/10/p10002
  • Abratenko P, An R, Anthony J, et al (2022) Wire-cell 3D pattern recognition techniques for neutrino event reconstruction in large LArTPCs: algorithm description and quantitative evaluation with MicroBooNE simulation. Journal of Instrumentation 17:P01037.
  • Adamson P, An FP, Anghel I, Aurisano A, Balantekin AB, et al. (2016) Limits on Active to Sterile Neutrino Oscillations from Disappearance Searches in the MINOS, Daya Bay, and Bugey-3 Experiments. Physical Review Letters. doi: 10.1103/physrevlett.117.151801
  • Qian X, Tan A, Ling JJ, Nakajima Y, Zhang C (2016) The Gaussian CL method for searches of new physics. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 827:63–78. doi: 10.1016/j.nima.2016.04.089
  • Qian X, Vogel P (2015) Neutrino mass hierarchy. Progress in Particle and Nuclear Physics 83:1–30. doi: 10.1016/j.ppnp.2015.05.002
  • Qian X, Dwyer DA, McKeown RD, Vogel P, Wang W, Zhang C (2013) Mass hierarchy resolution in reactor anti-neutrino experiments: Parameter degeneracies and detector energy response. Physical Review D. doi: 10.1103/physrevd.87.033005
  • Qian X, Tan A, Wang W, Ling JJ, McKeown RD, Zhang C (2012) Statistical evaluation of experimental determinations of neutrino mass hierarchy. Physical Review D. doi: 10.1103/physrevd.86.113011
  • An FP, Bai JZ, Balantekin AB, Band HR, Beavis D, et al. (2012) Observation of Electron-Antineutrino Disappearance at Daya Bay. Physical Review Letters. doi: 10.1103/physrevlett.108.171803
  • Qian X, Allada K, Dutta C, Huang J, Katich J, et al. (2011) Single Spin Asymmetries in Charged Pion Production from Semi-Inclusive Deep Inelastic Scattering on a Transversely PolarizedHe3Target atQ2=1.4–2.7  GeV2. Physical Review Letters. doi: 10.1103/physrevlett.107.072003
  • Qian X, Horn T, Clasie B, Arrington J, Asaturyan R, et al. (2010) Experimental study of theA(e,e′π+) reaction onH1,H2,C12,Al27,Cu63, andAu197. Physical Review C. doi: 10.1103/physrevc.81.055209
  • Abratenko P, An R, Anthony J, et al (2022) Search for an Excess of Electron Neutrino Interactions in MicroBooNE Using Multiple Final-State Topologies. Physical Review Letters 128:.
  • Abratenko P, An R, Anthony J, et al (2022) First Measurement of Energy-Dependent Inclusive Muon Neutrino Charged-Current Cross Sections on Argon with the MicroBooNE Detector. Physical Review Letters 128:.
  • Zhang C, Qian X, Fallot M (2024) Reactor antineutrino flux and anomaly. Progress in Particle and Nuclear Physics 136:104106.
  • Abratenko P, Andrade Aldana D, Anthony J, et al (2023) First Constraints on Light Sterile Neutrino Oscillations from Combined Appearance and Disappearance Searches with the MicroBooNE Detector. Physical Review Letters 130:.

Research Highlights

Awards & Recognition

Xin Qian

Brookhaven National Laboratory

Physics Department
Bldg. 510E, Room 3-179
P.O. Box 5000
Upton, NY 11973-5000

(631) 344-3828

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