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
影响因子:
5
通讯作者:
Di Vacri, M. L.
中科院分区:
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.
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.
登录
查看更多内容
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
DOI:
--
发表时间:
1987
期刊:
影响因子:
--
作者:
G. Hopkinson
通讯作者:
G. Hopkinson
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
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
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