Event reconstruction in a liquid xenon Time Projection Chamber with an optically-open field cage
Event reconstruction in a liquid xenon Time Projection Chamber with an optically-open field cage
复制标题
DOI：
10.1016/j.nima.2021.165239
复制
发表时间：
2020-09
期刊：
影响因子：
--
通讯作者：
T. Stiegler;S. Sangiorgio;J. Brodsky;M. Heffner;S. A. Kharusi;G. Anton;I. Arnquist;I. Badhrees;P. Barbeau;D. Beck;V. Belov;T. Bhatta;A. Bolotnikov;P. Breur;E. Brown;T. Brunner;E. Caden;G. Cao;L. Cao;C. Chambers;B. Chana;S. Charlebois;M. Chiu;B. Cleveland;M. Coon;A. Craycraft;J. Dalmasson;T. Daniels;L. Darroch;A. De St. Croix;A. D. Mesrobian-Kabakian;K. Deslandes;R. DeVoe;M. L. di Vacri;J. Dilling;Y.Y. Ding;M. Dolinski;A. Dragone;J. Echevers;F. Edaltafar;M. Elbeltagi;L. Fabris;D. Fairbank;W. Fairbank;J. Farine;S. Ferrara;S. Feyzbakhsh;G. Gallina;P. Gautam;G. Giacomini;D. Goeldi;R. Gornea;G. Gratta;E. Hansen;E. Hoppe;J. Hössl;A. House;M. Hughes;A. Iverson;A. Jamil;M. Jewell;X.S. Jiang;A. Karelin;L. Kaufman;T. Koffas;R. Krücken;A. Kuchenkov;K.S. Kumar;Y. Lan;A. Larson;K. Leach;B. Lenardo;D. Leonard;G. Li;S. Li;Z. Li;C. Licciardi;P. Lv;R. Maclellan;N. Massacret;T. McElroy;M. Medina-Peregrina;T. Michel;B. Mong;D. Moore;K. Murray;P. Nakarmi;C. Natzke;R. J. Newby;K. Ni;Z. Ning;O. Njoya;F. Nolet;O. Nusair;K. Odgers;A. Odian;M. Oriunno;J. Orrell;G. S. Ortega;I. Ostrovskiy;C. Overman;S. Parent;A. Piepke;A. Pocar;J. Pratte;V. Radeka;E. Raguzin;H. Rasiwala;S. Rescia;F. Retière;M. Richman;A. Robinson;T. Rossignol;P. Rowson;N. Roy;R. Saldanha;K. Skarpaas;A. Soma;G. St-Hilaire;V. Stekhanov;X.L. Sun;M. Tarka;S. Thibado;A. Tidball;J. Todd;T. Totev;R. Tsang;T. Tsang;F. Vachon;V. Veeraraghavan;S. Viel;G. Visser;C. Vivo-Vilches;J. Vuilleumier;M. Wagenpfeil;T. Wager;M. Walent;Q. Wang;W. Wei;L. Wen;U. Wichoski;M. Worcester;S.X. Wu;W.H. Wu;X. Wu;Q. Xia;H. Yang;L. Yang;O. Zeldovich;J. Zhao;Y. Zhou;T. Ziegler
中科院分区：
文献类型：
--
作者：
T. Stiegler;S. Sangiorgio;J. Brodsky;M. Heffner;S. A. Kharusi;G. Anton;I. Arnquist;I. Badhrees;P. Barbeau;D. Beck;V. Belov;T. Bhatta;A. Bolotnikov;P. Breur;E. Brown;T. Brunner;E. Caden;G. Cao;L. Cao;C. Chambers;B. Chana;S. Charlebois;M. Chiu;B. Cleveland;M. Coon;A. Craycraft;J. Dalmasson;T. Daniels;L. Darroch;A. De St. Croix;A. D. Mesrobian-Kabakian;K. Deslandes;R. DeVoe;M. L. di Vacri;J. Dilling;Y.Y. Ding;M. Dolinski;A. Dragone;J. Echevers;F. Edaltafar;M. Elbeltagi;L. Fabris;D. Fairbank;W. Fairbank;J. Farine;S. Ferrara;S. Feyzbakhsh;G. Gallina;P. Gautam;G. Giacomini;D. Goeldi;R. Gornea;G. Gratta;E. Hansen;E. Hoppe;J. Hössl;A. House;M. Hughes;A. Iverson;A. Jamil;M. Jewell;X.S. Jiang;A. Karelin;L. Kaufman;T. Koffas;R. Krücken;A. Kuchenkov;K.S. Kumar;Y. Lan;A. Larson;K. Leach;B. Lenardo;D. Leonard;G. Li;S. Li;Z. Li;C. Licciardi;P. Lv;R. Maclellan;N. Massacret;T. McElroy;M. Medina-Peregrina;T. Michel;B. Mong;D. Moore;K. Murray;P. Nakarmi;C. Natzke;R. J. Newby;K. Ni;Z. Ning;O. Njoya;F. Nolet;O. Nusair;K. Odgers;A. Odian;M. Oriunno;J. Orrell;G. S. Ortega;I. Ostrovskiy;C. Overman;S. Parent;A. Piepke;A. Pocar;J. Pratte;V. Radeka;E. Raguzin;H. Rasiwala;S. Rescia;F. Retière;M. Richman;A. Robinson;T. Rossignol;P. Rowson;N. Roy;R. Saldanha;K. Skarpaas;A. Soma;G. St-Hilaire;V. Stekhanov;X.L. Sun;M. Tarka;S. Thibado;A. Tidball;J. Todd;T. Totev;R. Tsang;T. Tsang;F. Vachon;V. Veeraraghavan;S. Viel;G. Visser;C. Vivo-Vilches;J. Vuilleumier;M. Wagenpfeil;T. Wager;M. Walent;Q. Wang;W. Wei;L. Wen;U. Wichoski;M. Worcester;S.X. Wu;W.H. Wu;X. Wu;Q. Xia;H. Yang;L. Yang;O. Zeldovich;J. Zhao;Y. Zhou;T. Ziegler
摘要nEXO是一个吨级无中微子双β衰变实验，在时间投影室（TPC）中使用液体136 Xe（LXe）读出电离和闪烁信号。在场笼和Leptin容器之间，存在Leptin（“皮肤”Leptin）层，其中不收集电离信号。由于场笼周围缺乏光学屏障，因此仅检测到闪烁光子。在这项工作中，我们表明起源于皮肤LXe区域的光可用于将背景辨别力比之前发表的估计提高5%。这种改善来自两个因素。首先，通过识别来自与皮肤中的能量沉积的相互作用的光来去除γ射线背景的一部分。第二，通过标记皮肤Ld 3中214 Bi-214 Po链的α衰变，可以有效地排除皮肤Ld 3中溶解的222 Rn的本底。
Abstract nEXO is a proposed tonne-scale neutrinoless double beta decay (0 ν β β) experiment using liquid 136 Xe (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 γ-ray background is removed by identifying light from interactions with an energy deposition in the skin LXe. Second, background from 222 Rn dissolved in the skin LXe can be efficiently rejected by tagging the α decay in the 214 Bi-214 Po chain in the skin LXe.