Results from the Super Cryogenic Dark Matter Search Experiment at Soudan.

R Agnese,P Lukens,Z Hong,S Yellin,R Germond,D Jardin,A Phipps,R Mahapatra,M Stein,X Zhang,E Fascione,V Iyer,D Barker,D Speller,R Basu Thakur,W Rau,B Von Krosigk,B Cabrera,C Jena,R Bunker,K Schneck,J Cooley,A Kennedy,B Cornell,N Mast,B Sadoulet,B Welliver,R Calkins,P Redl,V Mandic,B Loer,A Kubik,M Fritts,T Doughty,D Balakishiyeva,M Daal,D Toback,A Roberts,B Mohanty,P Cushman,K Page,B Serfass,Y Chen,T Aramaki,A Reisetter,J Sander,T Saab,M Pepin,A Jastram,J Hall,N Mirabolfathi,M Ghaith,S Scorza,C Cartaro,L Hsu,G Gerbier,R Partridge,H Qiu,X Zhao,S Banik,M Pyle,R Underwood,T N Reynolds ,J L Orrell ,P C F Di Stefano ,M Martínez ,J K Nelson ,William K Baker ,E López Asamar ,J C Street ,Tobias Binder ,A N Villano ,I J Arnquist ,G Godfrey ,B A Young ,M E Huber ,E H Miller ,S M Oser ,E W Hoppe ,E Figueroa‐Feliciano ,S S Poudel ,R W Schnee ,M Kelsey ,D O Caldwell ,Yen-Yung Chang ,Noah Kurinsky ,Danika Marina Macdonell ,H R Harris ,J J Yen ,D A Bauer ,Kartik Senapati ,P L Brink ,D H Wright ,M A Bowles ,H A Tanaka ,H E Rogers ,Alan Robinson ,J S Wilson ,J D Morales Mendoza ,W A Page ,M J Wilson ,D G Cerdeño ,S R Golwala

doi:10.1103/physrevlett.120.061802

Abstract

We report the result of a blinded search for weakly interacting massive particles (WIMPs) using the majority of the SuperCDMS Soudan data set. With an exposure of 1690kg d, a single candidate event is observed, consistent with expected backgrounds. This analysis (combined with previous Ge results) sets an upper limit on the spin-independent WIMP-nucleon cross section of 1.4×10^{-44} (1.0×10^{-44}) cm^{2} at 46 GeV/c^{2}. These results set the strongest limits for WIMP-germanium-nucleus interactions for masses >12 GeV/c^{2}.

Highlights

We report the result of a blinded search for weakly interacting massive particles (WIMPs) using the majority of the SuperCDMS Soudan data set
We present the results of a search for dark matter (DM) scatters off atomic nuclei using 15 interleaved Z-sensitive ionization- and phonon-mediated detectors [4] of the SuperCDMS Soudan experiment
We find weight functions of recoil energy and ionization radial and z partition that, when applied to the 133Ba ionization-yield sideband data set, produce distribution functions in these three parameters matching in shape to those of the DM-search ionization-yield sideband data set

Summary

Results from the Super Cryogenic Dark Matter Search Experiment at Soudan

R. Agnese,1 T. Aramaki,2 I. J. Arnquist,3 W. Baker,4 D. Balakishiyeva,5 S. Banik,6 D. Barker,7 R. Basu Thakur,8,9 D. A. Bauer,8 T. Binder,10 M. A. Bowles,11 P. L. Brink,2 R. Bunker,3 B. Cabrera,12 D. O. Caldwell,13 R. Calkins,5 C. Cartaro,2 D. G. Cerdeño,14,15 Y. Chang,16 Y. Chen,17 J. Cooley,5 B. Cornell,16,* P. Cushman,7 M. Daal,18 P. C. F. Di Stefano,19 T. Doughty,18 E. Fascione,19 E. Figueroa-Feliciano,20 M. Fritts,7 G. Gerbier,19 R. Germond,19 M. Ghaith,19 G. L. Godfrey,2 S. R. Golwala,16 J. Hall,3 H. R. Harris,4 Z. Hong,20 E. W. Hoppe,3 L. Hsu,8 M. E. Huber,21 V. Iyer,6 D. Jardin,5 A. Jastram,4 C. Jena,6 M. H. Kelsey,2 A. Kennedy,7 A. Kubik,4 N. A. Kurinsky,2 B. Loer,3 E. Lopez Asamar,14 P. Lukens,8 D. MacDonell,22,23 R. Mahapatra,4 V. Mandic,7 N. Mast,7 E. H. Miller,11 N. Mirabolfathi,4 B. Mohanty,6 J. D. Morales Mendoza,4 J. Nelson,7 J. L. Orrell,3 S. M. Oser,22,23 K. Page,19 W. A. Page,22,23 R. Partridge,2 M. Penalver Martinez,14 M. Pepin,7 A. Phipps,18 S. Poudel,10 M. Pyle,18 H. Qiu,5 W. Rau,19 P. Redl,12 A. Reisetter,24 T. Reynolds,1 A. Roberts,10 A. E. Robinson,8 H. E. Rogers,7 T. Saab,1 B. Sadoulet,18,25 J. Sander,10 K. Schneck,2 R. W. Schnee,11 S. Scorza,26 K. Senapati,6 B. Serfass,18 D. Speller,18 M. Stein,5 J. Street,11 H. A. Tanaka,27 D. Toback,4 R. Underwood,19 A. N. Villano,7 B. von Krosigk,22,23 B. Welliver,1 J. S. Wilson,4 M. J. Wilson,27 D. H. Wright,2 S. Yellin,12 10Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA 11Department of Physics, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA 12Department of Physics, Stanford University, Stanford, California 94305, USA 13Department of Physics, University of California, Santa Barbara, California 93106, USA 14Department of Physics, Durham University, Durham DH1 3LE, United Kingdom 15Instituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid, 28049 Madrid, Spain 16Division of Physics, Mathematics, & Astronomy, California Institute of Technology, Pasadena, California 91125, USA 17Department of Physics, Syracuse University, Syracuse, New York 13244, USA 18Department of Physics, University of California, Berkeley, California 94720, USA 19Department of Physics, Queen’s University, Kingston, Ontario K7L 3N6, Canada 20Department of Physics & Astronomy, Northwestern University, Evanston, Illinois 60208-3112, USA 21Departments of Physics and Electrical Engineering, University of Colorado Denver, Denver, Colorado 80217, USA 22Department of Physics & Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada 23TRIUMF, Vancouver, British Columbia V6T 2A3, Canada 24Department of Physics, University of Evansville, Evansville, Indiana 47722, USA 25Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA 26SNOLAB, Creighton Mine #9, 1039 Regional Road 24, Sudbury, Ontario P3Y 1N2, Canada 27Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada 28Department of Physics, Santa Clara University, Santa Clara, California 95053, USA (Received 31 August 2017; revised manuscript received 2 January 2018; published 9 February 2018) Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Findings

SB DM