Characterization of the background spectrum in DAMIC at SNOLAB

Characterization of the background spectrum in DAMIC at SNOLAB
复制标题

SNOLAB DAMIC 背景光谱的表征

DOI:
10.1103/physrevd.105.062003
复制
发表时间:
2022
期刊:
影响因子:
5
通讯作者:
Di Vacri, M. L.
Di Vacri, M. L.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Aguilar-Arevalo, A.;Amidei, D.;Arnquist, I.;Baxter, D.;Cancelo, G.;Vergara, B. A. Cervantes;Chavarria, A. E.;Corso, N.;Darragh-Ford, E.;Di Vacri, M. L.

文献摘要

参考文献

被引文献

相似文献

我们构建了第一个全面的放射性背景模型的暗物质搜索与电荷耦合器件(CCD)。我们利用DAMIC在SNOLAB探测器和基于detailedgeant4的粒子输运模拟的良好表征的深度和能量分辨率来模拟从天然放射性到的体积和表面背景。我们适合所观察到的电离事件的能量和深度分布,以区分和限制可能的背景源,例如,从硅宇宙成因激活和表面从氡板出bulk。我们在SNOLAB CCD上观察到DAMIC的体背景率低至,使其成为最灵敏的硅暗物质探测器。最后,我们讨论了一个统计上显着过剩的事件的背景模型与能量以下的属性。
We construct the first comprehensive radioactive background model for a dark matter search with charge-coupled devices (CCDs). We leverage the well-characterized depth and energy resolution of the DAMIC at SNOLAB detector and a detailedgeant4-based particle-transport simulation to model both bulk and surface backgrounds from natural radioactivity down to. We fit to the energy and depth distributions of the observed ionization events to differentiate and constrain possible background sources, for example, bulkfrom silicon cosmogenic activation and surfacefrom radon plate-out. We observe the bulk background rate of the DAMIC at SNOLAB CCDs to be as low as, making it the most sensitive silicon dark matter detector. Finally, we discuss the properties of a statistically significant excess of events over the background model with energies below.
暗能量勘测相机(DECam)项目的现状
DOI: 10.1117/12.926216
发表时间: 2012
期刊: --
影响因子: --
作者:
Flaugher B
通讯作者: Flaugher B
电荷耦合器件成像仪中电荷扩散的分析建模
DOI: --
发表时间: 1987
期刊:
影响因子: --
作者:
G. Hopkinson
通讯作者: G. Hopkinson
使用交错式锗探测器进行暗物质搜索的表面电子排斥演示
DOI: --
发表时间: 2013
期刊:
影响因子: --
作者:
R. Agnese;A. Anderson;D. Balakishiyeva;R. Thakur;D. Bauer;A. Borgland;D. Brandt;P. Brink;R. Bunker;B. Cabrera;D. Caldwell;D. Cerdeño;H. Chagani;M. Cherry;J. Cooley;B. Cornell;C. Crewdson;P. Cushman;M. Daal;P. D. Stefano;E. Silva;T. Doughty;L. Esteban;S. Fallows;E. Figueroa;J. Fox;M. Fritts;G. Godfrey;S. Golwala;J. Hall;H. R. Harris;J. Hasi;S. Hertel;B. Hines;T. Hofer;D. Holmgren;L. Hsu;M. Huber;A. Jastram;O. Kamaev;B. Kara;M. Kelsey;S. Kenany;A. Kennedy;C. Kenney;M. Kiveni;K. Koch;B. Loer;E. Asamar;R. Mahapatra;V. Mandic;C. Martinez;K. McCarthy;N. Mirabolfathi;R. Moffatt;D. Moore;P. Nadeau;R. Nelson;L. Novak;K. Page;R. Partridge;M. Pepin;A. Phipps;K. Prasad;M. Pyle;H. Qiu;R. Radpour;W. Rau;P. Redl;A. Reisetter;R. Resch;Y. Ricci;T. Saab;B. Sadoulet;J. Sander;R. Schmitt;K. Schneck;R. Schnee;S. Scorza;D. Seitz;B. Serfass;B. Shank;D. Speller;A. Tomada;A. Villano;B. Welliver;D. Wright;S. Yellin;J. Yen;Betty A. Young;J. Zhang
通讯作者: J. Zhang
DOI: 10.1016/j.radmeas.2006.07.010
发表时间: 2007
影响因子: 2
作者:
W. Plastino;I. Chereji;S. Cuna;L. Kaihola;P. Felice;N. Lupsa;G. Balas;V. Mirel;P. Berdea;C. Baciu
通讯作者: C. Baciu
DOI: 10.2172/1659757
发表时间: 2018
期刊: Physics Letters B
影响因子: 4.4
作者:
R. Kolb;H. Weerts;N. Toro;R. G. Van de Water;R. Essig;D. McKinsey;K. Zurek;A. Chou;P. Graham;J. Estrada;J. Incandela;T. Tait
通讯作者: T. Tait