Cosmic Ray Background Rejection with Wire-Cell LArTPC Event Reconstruction in the MicroBooNE Detector
Abstract
For a large liquid argon time projection chamber (LArTPC) operating on or near the Earth's surface to detect neutrino interactions, the rejection of cosmogenic background is a critical and challenging task because of the large cosmic ray flux and the long drift time of the TPC. We introduce a superior cosmic background rejection procedure based on the Wire-Cell three-dimensional (3D) event reconstruction for LArTPCs. From an initial 1:20,000 neutrino to cosmic-ray background ratio, we demonstrate these tools on data from the MicroBooNE experiment and create a high performance generic neutrino event selection with a cosmic contamination of 14.9\% (9.7\%) for a visible energy region greater than O(200)~MeV. The neutrino interaction selection efficiency is 80.4\% and 87.6\% for inclusive charged-current and charged-current interactions, respectively. This significantly improved performance compared to existing reconstruction algorithms, marks a major milestone toward reaching the scientific goals of LArTPC neutrino oscillation experiments operating near the Earth's surface.
Keywords
Cite
@article{arxiv.2101.05076,
title = {Cosmic Ray Background Rejection with Wire-Cell LArTPC Event Reconstruction in the MicroBooNE Detector},
author = {MicroBooNE collaboration and P. Abratenko and M. Alrashed 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 D. Devitt and R. Diurba and L. Domine and R. Dorrill and K. Duffy and S. Dytman and B. Eberly and A. Ereditato and L. Escudero Sanchez and J. J. Evans 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 E. C. Huang and R. Itay and C. James and J. Jan de Vries 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 B. Kirby and M. Kirby and T. Kobilarcik and I. Kreslo and R. LaZur and I. Lepetic and K. Li and Y. Li and B. R. Littlejohn and D. Lorca and W. C. Louis and X. Luo and A. Marchionni and C. Mariani and D. Marsden and J. Marshall and J. Martin-Albo 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 P. Nienaber and J. Nowak 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 D. Porzio 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. Rochester and J. Rodriguez Rondon and H. E. Rogers and M. Rosenberg and M. Ross-Lonergan and B. Russell 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 S. R. Soleti 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 M. Toups and Y. -T. Tsai and S. Tufanli 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 W. Wu and E. Yandel and T. Yang and G. Yarbrough and L. E. Yates and H. W. Yu and G. P. Zeller and J. Zennamo and C. Zhang},
journal= {arXiv preprint arXiv:2101.05076},
year = {2021}
}