Michel Electron Reconstruction Using Cosmic-Ray Data from the MicroBooNE LArTPC
Abstract
The MicroBooNE liquid argon time projection chamber (LArTPC) has been taking data at Fermilab since 2015 collecting, in addition to neutrino beam, cosmic-ray muons. Results are presented on the reconstruction of Michel electrons produced by the decay at rest of cosmic-ray muons. Michel electrons are abundantly produced in the TPC, and given their well known energy spectrum can be used to study MicroBooNE's detector response to low-energy electrons (electrons with energies up to ~50 MeV). We describe the fully-automated algorithm developed to reconstruct Michel electrons, with which a sample of ~14,000 Michel electron candidates is obtained. Most of this article is dedicated to studying the impact of radiative photons produced by Michel electrons on the accuracy and resolution of their energy measurement. In this energy range, ionization and bremsstrahlung photon production contribute similarly to electron energy loss in argon, leading to a complex electron topology in the TPC. By profiling the performance of the reconstruction algorithm on simulation we show that the ability to identify and include energy deposited by radiative photons leads to a significant improvement in the energy measurement of low-energy electrons. The fractional energy resolution we measure improves from over 30% to ~20% when we attempt to include radiative photons in the reconstruction. These studies are relevant to a large number of analyses which aim to study neutrinos by measuring electrons produced by interactions over a broad energy range.
Keywords
Cite
@article{arxiv.1704.02927,
title = {Michel Electron Reconstruction Using Cosmic-Ray Data from the MicroBooNE LArTPC},
author = {MicroBooNE collaboration and R. Acciarri and C. Adams and R. An and J. Anthony and J. Asaadi and M. Auger and L. Bagby and S. Balasubramanian and B. Baller and C. Barnes and G. Barr and M. Bass and F. Bay and M. Bishai and A. Blake and T. Bolton and L. Bugel and L. Camilleri and D. Caratelli and B. Carls and R. Castillo Fernandez and F. Cavanna and H. Chen and E. Church and D. Cianci and E. Cohen and G. H. Collin and J. M. Conrad and M. Convery and J. I. Crespo-Anadon and M. Del Tutto and D. Devitt and S. Dytman and B. Eberly and A. Ereditato and L. Escudero Sanchez and J. Esquivel and B. T. Fleming and W. Foreman and A. P. Furmanski and D. Garcia-Gamez and G. T. Garvey and V. Genty and D. Goeldi and S. Gollapinni and N. Graf and E. Gramellini and H. Greenlee and R. Grosso and R. Guenette and A. Hackenburg and P. Hamilton and O. Hen and V Hewes and C. Hill and J. Ho and G. Horton-Smith and E. -C. Huang and C. James and J. Jan de Vries and C. -M. Jen and L. Jiang and R. A. Johnson and J. Joshi and H. Jostlein and D. Kaleko and G. Karagiorgi and W. Ketchum and B. Kirby and M. Kirby and T. Kobilarcik and I. Kreslo and A. Laube and Y. Li and A. Lister and B. R. Littlejohn and S. Lockwitz and D. Lorca and W. C. Louis and M. Luethi and B. Lundberg and X. Luo and A. Marchionni and C. Mariani and J. Marshall and D. A. Martinez Caicedo and V. Meddage and T. Miceli and G. B. Mills and J. Moon and M. Mooney and C. D. Moore and J. Mousseau and R. Murrells and D. Naples and P. Nienaber and J. Nowak and O. Palamara and V. Paolone and V. Papavassiliou and S. F. Pate and Z. Pavlovic and E. Piasetzky and D. Porzio and G. Pulliam and X. Qian and J. L. Raaf and A. Rafique and L. Rochester and C. Rudolf von Rohr and B. Russell and D. W. Schmitz and A. Schukraft and W. Seligman and M. H. Shaevitz and J. Sinclair and E. L. Snider and M. Soderberg and S. Soldner-Rembold and S. R. Soleti and P. Spentzouris and J. Spitz and J. St. John and T. Strauss and K. A. Sutton and A. M. Szelc and N. Tagg and K. Terao and M. Thomson and M. Toups and Y. -T. Tsai and S. Tufanli and T. Usher and R. G. Van de Water and B. Viren and M. Weber and D. A. Wickremasinghe and S. Wolbers and T. Wongjirad and K. Woodruff and T. Yang and L. Yates and G. P. Zeller and J. Zennamo and C. Zhang},
journal= {arXiv preprint arXiv:1704.02927},
year = {2023}
}