Event Reconstruction in a Liquid Xenon Time Projection Chamber with an Optically-Open Field Cage
Abstract
nEXO is a proposed tonne-scale neutrinoless double beta decay () experiment using liquid (LXe) in a Time Projection Chamber (TPC) to read out ionization and scintillation signals. Between the field cage and the LXe vessel, a layer of LXe ("skin" LXe) is present, where no ionization signal is collected. Only scintillation photons are detected, owing to the lack of optical barrier around the field cage. In this work, we show that the light originating in the skin LXe region can be used to improve background discrimination by 5% over previous published estimates. This improvement comes from two elements. First, a fraction of the -ray background is removed by identifying light from interactions with an energy deposition in the skin LXe. Second, background from dissolved in the skin LXe can be efficiently rejected by tagging the decay in the chain in the skin LXe.
Keywords
Cite
@article{arxiv.2009.10231,
title = {Event Reconstruction in a Liquid Xenon Time Projection Chamber with an Optically-Open Field Cage},
author = {T. Stiegler and S. Sangiorgio and J. P. Brodsky and M. Heffner and S. Al Kharusi and G. Anton and I. J. Arnquist and I. Badhrees and P. S. Barbeau and D. Beck and V. Belov and T. Bhatta and A. Bolotnikov and P. A. Breur and E. Brown and T. Brunner and E. Caden and G. F. Cao and L. Cao and C. Chambers and B. Chana and S. A. Charlebois and M. Chiu and B. Cleveland and M. Coon and A. Craycraft and J. Dalmasson and T. Daniels and L. Darroch and A. De St. Croix and A. Der Mesrobian-Kabakian and K. Deslandes and R. DeVoe and M. L. Di Vacri and J. Dilling and Y. Y. Ding and M. J. Dolinski and A. Dragone and J. Echevers and F. Edaltafar and M. Elbeltagi and L. Fabris and D. Fairbank and W. Fairbank and J. Farine and S. Ferrara and S. Feyzbakhsh and G. Gallina and P. Gautam and G. Giacomini and D. Goeldi and R. Gornea and G. Gratta and E. V. Hansen and E. W. Hoppe and J. Hößl and A. House and M. Hughes and A. Iverson and A. Jamil and M. J. Jewell and X. S. Jiang and A. Karelin and L. J. Kaufman and T. Koffas and R. Krücken and A. Kuchenkov and K. S. Kumar and Y. Lan and A. Larson and K. G. Leach and B. G. Lenardo and D. S. Leonard and G. Li and S. Li and Z. Li and C. Licciardi and P. Lv and R. MacLellan and N. Massacret and T. McElroy and M. Medina-Peregrina and T. Michel and B. Mong and D. C. Moore and K. Murray and P. Nakarmi and C. R. Natzke and R. J. Newby and K. Ni and Z. Ning and O. Njoya and F. Nolet and O. Nusair and K. Odgers and A. Odian and M. Oriunno and J. L. Orrell and G. S. Ortega and I. Ostrovskiy and C. T. Overman and S. Parent and A. Piepke and A. Pocar and J. -F. Pratte and V. Radeka and E. Raguzin and S. Rescia and F. Retière and M. Richman and A. Robinson and T. Rossignol and P. C. Rowson and N. Roy and R. Saldanha and K. Skarpaas VIII and A. K. Soma and G. St-Hilaire and V. Stekhanov and X. L. Sun and M. Tarka and S. Thibado and A. Tidball and J. Todd and T. I. Totev and R. Tsang and T. Tsang and F. Vachon and V. Veeraraghavan and S. Viel and G. Visser and C. Vivo-Vilches and J. -L. Vuilleumier and M. Wagenpfeil and T. Wager and M. Walent and Q. Wang and W. Wei and L. J. Wen and U. Wichoski and M. Worcester and S. X. Wu and W. H. Wu and X. Wu and Q. Xia and H. Yang and L. Yang and O. Zeldovich and J. Zhao and Y. Zhou and T. Ziegler},
journal= {arXiv preprint arXiv:2009.10231},
year = {2021}
}
Comments
11 pages, 12 figures