Search for Low-Mass Weakly Interacting Massive Particles Using Voltage-Assisted Calorimetric Ionization Detection in the SuperCDMS Experiment
R. Agnese(University of Florida), A. J. Anderson(Massachusetts Institute of Technology), M. Asai(SLAC National Accelerator Laboratory), D. Balakishiyeva(University of Florida), R. Basu Thakur(Fermi National Accelerator Laboratory), D A Bauer(Fermi National Accelerator Laboratory), J. Billard(Massachusetts Institute of Technology), A. W. Borgland(SLAC National Accelerator Laboratory), M. A. Bowles(Syracuse University), D. Brandt(SLAC National Accelerator Laboratory), P. L. Brink(SLAC National Accelerator Laboratory), R. Bunker(Syracuse University), Blas Cabrera(Stanford University), D. O. Caldwell(University of California, Santa Barbara), D. G. Cerdeño(Universidad Autónoma de Madrid), H. Chagani(University of Minnesota), J. Cooley(Southern Methodist University), Bruce Cornell(California Institute of Technology), C. H. Crewdson(Queen's University), P. Cushman(University of Minnesota), M. Daal(University of California, Berkeley), P. C. F. Di Stefano(Queen's University), T. Doughty(University of California, Berkeley), Luis Esteban(Universidad Autónoma de Madrid), S. Fallows(University of Minnesota), E. Figueroa‐Feliciano(Massachusetts Institute of Technology), G. Godfrey(SLAC National Accelerator Laboratory), S. R. Golwala(California Institute of Technology), J. Hall(Pacific Northwest National Laboratory), H. R. Harris(Texas A&M University), S. A. Hertel(Massachusetts Institute of Technology), T. Höfer(University of Minnesota), D. Holmgren(Fermi National Accelerator Laboratory), L. Hsu(Fermi National Accelerator Laboratory), M. E. Huber(University of Colorado Denver), A. Jastram(Texas A&M University), O. Kamaev(Queen's University), Burhan Kara(Southern Methodist University), M. H. Kelsey(SLAC National Accelerator Laboratory), A. Kennedy(University of Minnesota), M. Kiveni(Syracuse University), K. Koch(University of Minnesota), B. Loer(Fermi National Accelerator Laboratory), E. Lopez Asamar(Universidad Autónoma de Madrid), R. Mahapatra(Texas A&M University), V. Mandic(University of Minnesota), C. Moreno Martinez(Queen's University), K. A. McCarthy(Massachusetts Institute of Technology), N. Mirabolfathi(University of California, Berkeley), R. A. Moffatt(Stanford University), David C. Moore(California Institute of Technology), Philippe Nadeau(Queen's University), R. Nelson(California Institute of Technology), K. Page(Queen's University), R. Partridge(SLAC National Accelerator Laboratory), M. Pepin(University of Minnesota), A. Phipps(University of California, Berkeley), K. Prasad(Texas A&M University), M. Pyle(University of California, Berkeley), H. Qiu(Southern Methodist University), W. Rau(Queen's University), P. Redl(Stanford University), A. Reisetter(University of Evansville), Y. Ricci(Queen's University), T. Saab(University of Florida), B. Sadoulet(Lawrence Berkeley National Laboratory), J. Sander(University of South Dakota), K. Schneck(SLAC National Accelerator Laboratory), R. W. Schnee(Syracuse University), S. Scorza(Southern Methodist University), B. Serfass(University of California, Berkeley), B. Shank(Stanford University), D. Speller(University of California, Berkeley), A. N. Villano(University of Minnesota), B. Welliver(University of Florida), D. H. Wright(SLAC National Accelerator Laboratory), S. Yellin(Stanford University), J. J. Yen(Stanford University), Betty Young(Santa Clara University), J. Zhang(University of Minnesota)
Cited by 289Open Access
Abstract
SuperCDMS is an experiment designed to directly detect weakly interacting massive particles (WIMPs), a favored candidate for dark matter ubiquitous in the Universe. In this Letter, we present WIMP-search results using a calorimetric technique we call CDMSlite, which relies on voltage-assisted Luke-Neganov amplification of the ionization energy deposited by particle interactions. The data were collected with a single 0.6 kg germanium detector running for ten live days at the Soudan Underground Laboratory. A low energy threshold of 170 eVee (electron equivalent) was obtained, which allows us to constrain new WIMP-nucleon spin-independent parameter space for WIMP masses below 6 GeV/c2.
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