Calibration of the charge and energy response of the MicroBooNE liquid argon time projection chamber using muons and protons

Alrashed, M. and An, R. and Anthony, J. and Asaadi, J. and Ashkenazi, A. and Balasubramanian, S. and Baller, B. and Barnes, C. and Barr, G. and Basque, V. and Bass, M. and Bay, F. and Berkman, S. and Bhanderi, A. and Bhat, A. and Bishai, M. and Blake, A. and Bolton, T. and Camilleri, L. and Caratelli, D. and Terrazas, I. Caro and Fernandez, R. Castillo and Cavanna, F. and Cerati, G. and Church, E. and Cianci, D. and Cohen, E. O. and Conrad, J. M. and Convery, M. and Cooper-Troendle, L. and Crespo-Anadon, J. I. and Tutto, M. Del and Devitt, D. and Diaz, A. and Domine, L. and Duffy, K. and Dytman, S. and Eberly, B. and Ereditato, A. and Sanchez, L. Escudero and Esquivel, J. and Fitzpatrick, R. S. and Fleming, B. T. and Foppiani, N. and Franco, D. and Furmanski, A. P. and Garcia-Gamez, D. and Lister, A. and Nowak, J. (2020) Calibration of the charge and energy response of the MicroBooNE liquid argon time projection chamber using muons and protons. Journal of Instrumentation, 15. ISSN 1748-0221

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We describe a method used to calibrate the position- and time-dependent response of the MicroBooNE liquid argon time projection chamber anode wires to ionization particle energy loss. The method makes use of crossing cosmic-ray muons to partially correct anode wire signals for multiple effects as a function of time and position, including misconfigured or cross-connected TPC wires, space charge effects, electron attenuation, diffusion, and recombination. The overall energy scale is then determined using fully-contained beam-induced muons originating and stopping in the active region of the detector. Using this method, we obtain an absolute energy scale uncertainty of 3\% in data. We use stopping protons to further refine the relation between the measured charge and the energy loss for highly-ionizing particles. This data-driven detector calibration improves both the measurement of total deposited energy and particle identification based on energy loss per unit length as a function of residual range.

Item Type:
Journal Article
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Journal of Instrumentation
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This is an author-created, un-copyedited version of an article accepted for publication/published in Journal of Instrumentation. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi:10.1088//1748-0221/15/03/P03022
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25 Mar 2020 09:55
Last Modified:
23 Jul 2020 04:50