Search for low-mass dark matter with CDMSlite using a profile likelihood fit
Search for low-mass dark matter with CDMSlite using a profile likelihood fit
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DOI：
10.1103/physrevd.99.062001
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发表时间：
2018-08
影响因子：
5
通讯作者：
R. Agnese;T. Aralis;T. Aramaki;I. Arnquist;E. Azadbakht;W. Baker;S. Banik;D. Barker;D. Bauer;T. Binder;M. Bowles;P. Brink;R. Bunker;B. Cabrera;R. Calkins;R. A. Cameron;C. Cartaro;D. Cerdeño;Y.-Y. Chang-Y.;J. Cooley;B. Cornell;P. Cushman;F. De Brienne;T. Doughty;E. Fascione;E. Figueroa-Feliciano;C. Fink;M. Fritts;G. Gerbier;R. Germond;M. Ghaith;S. Golwala;H. R. Harris;N. Herbert;Z. Hong;E. Hoppe;L. Hsu;M. E. Huber;V. Iyer;D. Jardin;A. Jastram;C. Jena;M. Kelsey;A. Kennedy;A. Kubik;N. Kurinsky;R. Lawrence;B. Loer;E. Lopez Asamar;P. Lukens;D. MacDonell;R. Mahapatra;V. Mandic;N. Mast;E. Miller;N. Mirabolfathi;B. Mohanty;J. Morales Mendoza;J. Nelson;H. Neog;J. Orrell;S. Oser;W. Page;R. Partridge;M. Pepin;F. Ponce;S. Poudel;M. Pyle;H. Qiu;W. Rau;A. Reisetter;R. Ren;T. Reynolds;A. Roberts;A. E. Robinson;H. Rogers;T. Saab;B. Sadoulet;J. Sander;A. Scarff;R. Schnee;S. Scorza;K. Senapati;B. Serfass;D. Speller;C. Stanford;M. Stein;J. Street;H. A. Tanaka-H. A.-Tanaka-1390470446;D. Toback;R. Underwood;A. Villano;B. von Krosigk;S. Watkins;J. S. Wilson-J. S.-Wilson-2109103973;M. Wilson;J. Winchell;D. Wright;S. Yellin;B. Young;X. Zhang;X. Zhao
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文献类型：
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作者：
R. Agnese;T. Aralis;T. Aramaki;I. Arnquist;E. Azadbakht;W. Baker;S. Banik;D. Barker;D. Bauer;T. Binder;M. Bowles;P. Brink;R. Bunker;B. Cabrera;R. Calkins;R. A. Cameron;C. Cartaro;D. Cerdeño;Y.-Y. Chang-Y.;J. Cooley;B. Cornell;P. Cushman;F. De Brienne;T. Doughty;E. Fascione;E. Figueroa-Feliciano;C. Fink;M. Fritts;G. Gerbier;R. Germond;M. Ghaith;S. Golwala;H. R. Harris;N. Herbert;Z. Hong;E. Hoppe;L. Hsu;M. E. Huber;V. Iyer;D. Jardin;A. Jastram;C. Jena;M. Kelsey;A. Kennedy;A. Kubik;N. Kurinsky;R. Lawrence;B. Loer;E. Lopez Asamar;P. Lukens;D. MacDonell;R. Mahapatra;V. Mandic;N. Mast;E. Miller;N. Mirabolfathi;B. Mohanty;J. Morales Mendoza;J. Nelson;H. Neog;J. Orrell;S. Oser;W. Page;R. Partridge;M. Pepin;F. Ponce;S. Poudel;M. Pyle;H. Qiu;W. Rau;A. Reisetter;R. Ren;T. Reynolds;A. Roberts;A. E. Robinson;H. Rogers;T. Saab;B. Sadoulet;J. Sander;A. Scarff;R. Schnee;S. Scorza;K. Senapati;B. Serfass;D. Speller;C. Stanford;M. Stein;J. Street;H. A. Tanaka-H. A.-Tanaka-1390470446;D. Toback;R. Underwood;A. Villano;B. von Krosigk;S. Watkins;J. S. Wilson-J. S.-Wilson-2109103973;M. Wilson;J. Winchell;D. Wright;S. Yellin;B. Young;X. Zhang;X. Zhao
作者(S)：Agnese，R；Aralis，T；Aramaki，T；Arnquist，IJ；Azadbakht，E；Baker，W；Banik，S；Barker，D；Bauer，DA；Binder，T；Bowles，MA；Brink，PL；Bunker，R；Cabrera，B；Calkins，R；Cameron，RA；Cartaro，C；Cerdeno，DG；Chang，YY；Cooley，J；Cornell，B；Cushman，P；de Brienne，F；Doughty，T；Fascione，E；Figueroa-Feliciano，E；Fink，Critts；Fritts，M；Gerbier，G；Germond，R；Ghaith，M；Golwala，SR；Harris，HR；Herbert，N；Hong，Z；Hoppe，EW；Hsu，L；Huber，ME；Iyer，V；Jardin，D；Jastram，A；Jena，C；Kelly，MH；Kennedy，A；Kubik，A；Kurinsky，NA；Lawrence，RE；Loer，B；Lopez Asamar，E；Lukens，P；Macdonell，D；Mahapatra，R；Manic，V；Mast，N；Miller，E；Mirabolfathi，N；Mohanty，B；Morales Mendza，JD；Nelson，J；Neog，H；Orrell，JL；Oser，SM；Page，WA；Mahapatra，R；Manic，V；Mast，N；Miller，E；Mirabolfathi，N；Mohanty，B；Morales Mendza，JD；Nelson，J；Neog，H；Orrell，JL；Oser，SM；Page，WA；Partridge，R；Pepin，M；Ponce，F；Poudel，S；Parle，M；Chu，H；RAU，W；Reisetter，A；Ren，R；Reynolds，T；Roberts，A；Robinson，AE；Rogers，HE；Saab，T；Sadoulet，B；Sander，J；Scarff，A；Schnee，RW；Scorza，S；Senapati，K；Serfass，B；Speller，D|摘要：©2019美国物理学会。低温暗物质搜索低电离阈值实验(CDMSlite)搜索低温探测器中暗物质粒子与锗核之间的相互作用。该实验实现了低能量阈值，提高了对低质量(110GeV/c2)暗物质粒子的敏感度。我们对最终的CDMSlite数据集进行了分析，该数据集使用了与之前两个CDMSlite数据集不同的检测器。这一分析包括防止偏差的数据“盐化”方法、改进的噪声辨别、背景建模，以及在存在背景的情况下使用轮廓似然方法来搜索暗物质信号。与以前的分析相比，我们获得了70 eV的能量阈值，并显著提高了对质量在2.5到10GeV/c2之间的暗物质粒子的灵敏度。在5GeV/c2时，Ge中暗物质-核子散射截面的上限为5.4×10-42cm2，这是∼2.5比CDMSlite结果有所改善的一个因素。
Author(s): Agnese, R; Aralis, T; Aramaki, T; Arnquist, IJ; Azadbakht, E; Baker, W; Banik, S; Barker, D; Bauer, DA; Binder, T; Bowles, MA; Brink, PL; Bunker, R; Cabrera, B; Calkins, R; Cameron, RA; Cartaro, C; Cerdeno, DG; Chang, YY; Cooley, J; Cornell, B; Cushman, P; De Brienne, F; Doughty, T; Fascione, E; Figueroa-Feliciano, E; Fink, CW; Fritts, M; Gerbier, G; Germond, R; Ghaith, M; Golwala, SR; Harris, HR; Herbert, N; Hong, Z; Hoppe, EW; Hsu, L; Huber, ME; Iyer, V; Jardin, D; Jastram, A; Jena, C; Kelsey, MH; Kennedy, A; Kubik, A; Kurinsky, NA; Lawrence, RE; Loer, B; Lopez Asamar, E; Lukens, P; Macdonell, D; Mahapatra, R; Mandic, V; Mast, N; Miller, E; Mirabolfathi, N; Mohanty, B; Morales Mendoza, JD; Nelson, J; Neog, H; Orrell, JL; Oser, SM; Page, WA; Partridge, R; Pepin, M; Ponce, F; Poudel, S; Pyle, M; Qiu, H; Rau, W; Reisetter, A; Ren, R; Reynolds, T; Roberts, A; Robinson, AE; Rogers, HE; Saab, T; Sadoulet, B; Sander, J; Scarff, A; Schnee, RW; Scorza, S; Senapati, K; Serfass, B; Speller, D | Abstract: © 2019 American Physical Society. The Cryogenic Dark Matter Search low ionization threshold experiment (CDMSlite) searches for interactions between dark matter particles and germanium nuclei in cryogenic detectors. The experiment has achieved a low energy threshold with improved sensitivity to low-mass (l10 GeV/c2) dark matter particles. We present an analysis of the final CDMSlite dataset, taken with a different detector than was used for the two previous CDMSlite datasets. This analysis includes a data "salting" method to protect against bias, improved noise discrimination, background modeling, and the use of profile likelihood methods to search for a dark matter signal in the presence of backgrounds. We achieve an energy threshold of 70 eV and significantly improve the sensitivity for dark matter particles with masses between 2.5 and 10 GeV/c2 compared to previous analyses. We set an upper limit on the dark matter-nucleon scattering cross section in germanium of 5.4×10-42 cm2 at 5 GeV/c2, a factor of ∼2.5 improvement over the previous CDMSlite result.