Simulation of charge readout with segmented tiles in nEXO

Li Z, Cen WR, Robinson A, Moore DC, Wen LJ, Odian A, Kharusi SA, Anton G, Arnquist IJ, Badhrees I, Barbeau PS, Beck D, Belov V, Bhatta T, Brodsky JP, Brown E, Brunner T, Caden E, Cao GF, Cao L, Chambers C, Chana B, Charlebois SA, Chiu M, Cleveland B, Coon M, Craycraft A, Dalmasson J, Daniels T, Darroch L, Daugherty SJ, Croix ADS, Mesrobian-Kabakian AD, Devoe R, Vacri ML, Dilling J, Ding YY, Dolinski MJ, Dragone A, Echevers J, Elbeltagi M, Fabris L, Fairbank D, Fairbank W, Farine J, Ferrara S, Feyzbakhsh S, Fontaine R, Fucarino A, Gallina G, Gautam P, Giacomini G, Goeldi D, Gornea R, Gratta G, Hansen EV, Heffner M, Hoppe EW, Hößl J, House A, Hughes M, Iverson A, Jamil A, Jewell MJ, Jiang XS, Karelin A, Kaufman LJ, Kodroff D, Koffas T, Krücken R, Kuchenkov A, Kumar KS, Lan Y, Larson A, Leach KG, Lenardo BG, Leonard DS, Li G, Li S, Licciardi C, Lin YH, Lv P, Maclellan R, McElroy T, Medina-Peregrina M, Michel T, Mong B, Murray K, Nakarmi P, Natzke CR, Newby RJ, Ning Z, Njoya O, Nolet F, Nusair O, Odgers K, Oriunno M, Orrell JL, Ortega GS, Ostrovskiy I, Overman CT, Parent S, Piepke A, Pocar A, Pratte JF, Radeka V, Raguzin E, Rescia S, Retière F, Richman M, Rossignol T, Rowson PC, Roy N, Runge J, Saldanha R, Sangiorgio S, Viii KS, Soma AK, St-Hilaire G, Stekhanov V, Stiegler T, Sun XL, Tarka M, Todd J, Tolba T, Totev TI, Tsang R, Tsang T, Vachon F, Veeraraghavan V, Viel S, Visser G, Vivo-Vilches C, Vuilleumier JL, Wagenpfeil M, Walent M, Wang Q, Ward M, Watkins J, Weber M, Wei W, Wichoski U, Wu SX, Wu WH, Wu X, Xia Q, Yang H, Yang L, Yen YR, Zeldovich O, Zhao J, Zhou Y, Ziegler T (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Book Volume: 14

Article Number: P09020

Journal Issue: 9

DOI: 10.1088/1748-0221/14/09/P09020

Abstract

nEXO is a proposed experiment to search for the neutrino-less double beta decay (0νββ) of ¹³⁶Xe in a tonne-scale liquid xenon time projection chamber (TPC) . The nEXO TPC will be equipped with charge collection tiles to form the anode. In this work, the charge reconstruction performance of this anode design is studied with a dedicated simulation package. A multi-variate method and a deep neural network are developed to distinguish simulated 0νββ signals from backgrounds arising from trace levels of natural radioactivity in the detector materials. These simulations indicate that the nEXO TPC with charge-collection tiles shows promising capability to discriminate the 0νββ signal from backgrounds. The estimated half-life sensitivity for 0νββ decay is improved by ∼20 (32)% with the multi-variate (deep neural network) methods considered here, relative to the sensitivity estimated in the nEXO pre-conceptual design report.

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Involved external institutions

University of Illinois at Urbana-Champaign United States (USA) (US) Carleton University Canada (CA) Yale University United States (USA) (US) McGill University Canada (CA) Laurentian University Canada (CA) University of South Dakota United States (USA) (US) Lawrence Livermore National Laboratory United States (USA) (US) Institute of High Energy Physics (IHEP) / 中国科学院高能物理研究所 China (CN) Pacific Northwest National Laboratory United States (USA) (US) Triangle Universities Nuclear Laboratory United States (USA) (US) Drexel University United States (USA) (US) Stanford National Accelerator Laboratory (SLAC) United States (USA) (US) Stanford University United States (USA) (US) Institute for Basic Science Korea, Republic of (KR) Oak Ridge National Laboratory United States (USA) (US) University of Massachusetts Amherst (UMass) United States (USA) (US) The University of Alabama United States (USA) (US) Triumf Canada (CA) State University of New York at Albany (UNY Albany / UAlbany) United States (USA) (US) Colorado School of Mines United States (USA) (US) Université de Sherbrooke Canada (CA) Colorado State University United States (USA) (US) IMECAS Institute of Microelectronice of Chinese Academy of Sciences China (CN) University of North Carolina Wilmington (UNCW) United States (USA) (US) Rensselaer Polytechnic Institute (RPI) United States (USA) (US) Brookhaven National Laboratory United States (USA) (US) Indiana University United States (USA) (US) Universität Bern Switzerland (CH) Institute for Theoretical and Experimental Physics (ITEP) /Институт теоретической и экспериментальной физики Russian Federation (RU)

How to cite

APA:

Li, Z., Cen, W.R., Robinson, A., Moore, D.C., Wen, L.J., Odian, A.,... Ziegler, T. (2019). Simulation of charge readout with segmented tiles in nEXO. Journal of Instrumentation, 14(9). https://doi.org/10.1088/1748-0221/14/09/P09020

MLA:

Li, Z., et al. "Simulation of charge readout with segmented tiles in nEXO." Journal of Instrumentation 14.9 (2019).

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