Measurement of the Longitudinal Diffusion of Ionization Electrons in the MicroBooNE Detector
Abstract
Accurate knowledge of electron transport properties is vital to understanding the information provided by liquid argon time projection chambers (LArTPCs). Ionization electron drift-lifetime, local electric field distortions caused by positive ion accumulation, and electron diffusion can all significantly impact the measured signal waveforms. This paper presents a measurement of the effective longitudinal electron diffusion coefficient, , in MicroBooNE at the nominal electric field strength of 273.9 V/cm. Historically, this measurement has been made in LArTPC prototype detectors. This represents the first measurement in a large-scale (85 tonne active volume) LArTPC operating in a neutrino beam. This is the largest dataset ever used for this measurement. Using a sample of 70,000 through-going cosmic ray muon tracks tagged with MicroBooNE's cosmic ray tagger system, we measure cm/s.
Keywords
Cite
@article{arxiv.2104.06551,
title = {Measurement of the Longitudinal Diffusion of Ionization Electrons in the MicroBooNE Detector},
author = {P. Abratenko and R. An and J. Anthony and J. Asaadi and A. Ashkenazi and S. Balasubramanian and B. Baller and C. Barnes and G. Barr and V. Basque and L. Bathe-Peters and O. Benevides Rodrigues and S. Berkman and A. Bhanderi and A. Bhat and M. Bishai and A. Blake and T. Bolton and L. Camilleri and D. Caratelli and I. Caro Terrazas and R. Castillo Fernandez and F. Cavanna and G. Cerati and Y. Chen and E. Church and D. Cianci and J. M. Conrad and M. Convery and L. Cooper-Troendle and J. I. Crespo-Anadon and M. Del Tutto and S. R. Dennis and D. Devitt and R. Diurba and R. Dorrill and K. Duffy and S. Dytman and B. Eberly and A. Ereditato and J. J. Evans and R. Fine and G. A. Fiorentini Aguirre and R. S. Fitzpatrick and B. T. Fleming and N. Foppiani and D. Franco and A. P. Furmanski and D. Garcia-Gamez and S. Gardiner and G. Ge and S. Gollapinni and O. Goodwin and E. Gramellini and P. Green and H. Greenlee and W. Gu and R. Guenette and P. Guzowski and L. Hagaman and E. Hall and P. Hamilton and O. Hen and G. A. Horton-Smith and A. Hourlier and R. Itay and C. James and X. Ji and L. Jiang and J. H. Jo and R. A. Johnson and Y. J. Jwa and N. Kamp and N. Kaneshige and G. Karagiorgi and W. Ketchum and M. Kirby and T. Kobilarcik and I. Kreslo and R. LaZur and I. Lepetic and K. Li and Y. Li and K. Lin and A. Lister and B. R. Littlejohn and W. C. Louis and X. Luo and K. Manivannan and C. Mariani and D. Marsden and J. Marshall and D. A. Martinez Caicedo and K. Mason and A. Mastbaum and N. McConkey and V. Meddage and T. Mettler and K. Miller and J. Mills and K. Mistry and T. Mohayai and A. Mogan and J. Moon and M. Mooney and A. F. Moor and C. D. Moore and L. Mora Lepin and J. Mousseau and M. Murphy and D. Naples and A. Navrer-Agasson and R. K. Neely and J. Nowak and M. Nunes and O. Palamara and V. Paolone and A. Papadopoulou and V. Papavassiliou and S. F. Pate and A. Paudel and Z. Pavlovic and E. Piasetzky and I. Ponce-Pinto and S. Prince and X. Qian and J. L. Raaf and V. Radeka and A. Rafique and M. Reggiani-Guzzo and L. Ren and L. C. J. Rice and L. Rochester and J. Rodriguez Rondon and H. E. Rogers and M. Rosenberg and M. Ross-Lonergan and G. Scanavini and D. W. Schmitz and A. Schukraft and W. Seligman and M. H. Shaevitz and R. Sharankova and J. Sinclair and A. Smith and E. L. Snider and M. Soderberg and S. Soldner-Rembold and P. Spentzouris and J. Spitz and M. Stancari and J. St. John and T. Strauss and K. Sutton and S. Sword-Fehlberg and A. M. Szelc and N. Tagg and W. Tang and K. Terao and C. Thorpe and D. Totani and M. Toups and Y. -T. Tsai and M. A. Uchida and T. Usher and W. Van De Pontseele and B. Viren and M. Weber and H. Wei and Z. Williams and S. Wolbers and T. Wongjirad and M. Wospakrik and N. Wright and W. Wu and E. Yandel and T. Yang and G. Yarbrough and L. E. Yates and G. P. Zeller and J. Zennamo and C. Zhang},
journal= {arXiv preprint arXiv:2104.06551},
year = {2021}
}
Comments
Changes following feedback from journal referee. Some wording changes, clarifications. Merged several figures to save on space