M. Baird
Indiana University
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Publication
Featured researches published by M. Baird.
21st International Conference on Computing in High Energy and Nuclear Physics, CHEP 2015 | 2015
M. Baird; Jianming Bian; M Messier; E. Niner; D. Rocco; K. Sachdev
The NOvA experiment is a long-baseline neutrino oscillation experiment utilizing the NuMI beam generated at Fermilab. The experiment will measure the oscillations within a muon neutrino beam in a 300 ton Near Detector located underground at Fermilab and a functionally-identical 14 kiloton Far Detector placed 810 km away. The detectors are liquid scintillator tracking calorimeters with a fine-grained cellular structure that provides a wealth of information for separating the different particle track and shower topologies. Each detector has its own challenges with the Near Detector seeing multiple overlapping neutrino interactions in each event and the Far Detector having a large background of cosmic rays due to being located on the surface. A series of pattern recognition techniques have been developed to go from event records, to spatially and temporally separating individual interactions, to vertexing and tracking, and particle identification. This combination of methods to achieve the full event reconstruction will be discussed.
Journal of Instrumentation | 2018
D. L. Adams; B. Eberly; S. Glavin; Z. Djurcic; D. Rivera; J. Freeman; D. Stefan; E. Worcester; T. Kutter; T. Yang; S. Mufson; T. Alion; M. Thiesse; N.J.C. Spooner; X. Qian; T. Dealtry; M. Graham; D. Brailsford; J. Stock; V.A. Kudryavtsev; L.F. Thompson; A. Higuera; J. Jacobsen; L. Bagby; J. Martin-Albo; R. J. Wilson; T.K. Warburton; A. Hahn; M. Stancari; J. Stewart
The 35-ton prototype for the Deep Underground Neutrino Experiment far detector was a single-phase liquid argon time projection chamber with an integrated photon detector system, all situated inside a membrane cryostat. The detector took cosmic-ray data for six weeks during the period of February 1, 2016 to March 12, 2016. The performance of the photon detection system was checked with these data. An installed photon detector was demonstrated to measure the arrival times of cosmic-ray muons with a resolution better than 32 ns, limited by the timing of the trigger system. A measurement of the timing resolution using closely-spaced calibration pulses yielded a resolution of 15 ns for pulses at a level of 6 photo-electrons. Scintillation light from cosmic-ray muons was observed to be attenuated with increasing distance with a characteristic length of
