CDMSlite: A Search for Low-Mass WIMPs using Voltage-Assisted Calorimetric Ionization Detection in the SuperCDMS Experiment
نویسندگان
چکیده
R. Agnese, A.J. Anderson, M. Asai, D. Balakishiyeva, R. Basu Thakur, 19, ∗ D.A. Bauer, J. Billard, A. Borgland, M.A. Bowles, D. Brandt, P.L. Brink, R. Bunker, B. Cabrera, D.O. Caldwell, D.G. Cerdeno, H. Chagani, J. Cooley, B. Cornell, C.H. Crewdson, P. Cushman, M. Daal, P.C.F. Di Stefano, T. Doughty, L. Esteban, S. Fallows, E. Figueroa-Feliciano, G.L. Godfrey, S.R. Golwala, J. Hall, H.R. Harris, S.A. Hertel, T. Hofer, D. Holmgren, L. Hsu, M.E. Huber, A. Jastram, O. Kamaev, B. Kara, M.H. Kelsey, A. Kennedy, M. Kiveni, K. Koch, B. Loer, E. Lopez Asamar, R. Mahapatra, V. Mandic, C. Martinez, K.A. McCarthy, N. Mirabolfathi, R.A. Moffatt, D.C. Moore, P. Nadeau, R.H. Nelson, K. Page, R. Partridge, M. Pepin, A. Phipps, K. Prasad, M. Pyle, H. Qiu, W. Rau, P. Redl, A. Reisetter, Y. Ricci, T. Saab, B. Sadoulet, 3 J. Sander, K. Schneck, R.W. Schnee, S. Scorza, B. Serfass, B. Shank, D. Speller, A.N. Villano, B. Welliver, D.H. Wright, S. Yellin, J.J. Yen, B.A. Young, and J. Zhang
منابع مشابه
Search for low-mass weakly interacting massive particles using voltage-assisted calorimetric ionization detection in the SuperCDMS experiment.
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 c...
متن کاملNew Results from the Search for Low-Mass Weakly Interacting Massive Particles with the CDMS Low Ionization Threshold Experiment.
The CDMS low ionization threshold experiment (CDMSlite) uses cryogenic germanium detectors operated at a relatively high bias voltage to amplify the phonon signal in the search for weakly interacting massive particles (WIMPs). Results are presented from the second CDMSlite run with an exposure of 70 kg day, which reached an energy threshold for electron recoils as low as 56 eV. A fiducializatio...
متن کاملDetermining the WIMP mass using direct detection experiments
We study the accuracy with which the WIMP mass could be determined by a superCDMS-like direct detection experiment, given optimistic assumptions about the detector set-up and WIMP properties. We consider WIMPs with an interaction crosssection of σp = 10 −7 pb (just below current exclusion limits) and assume, initially, that the local WIMP velocity distribution and density are known and that the...
متن کاملFrom CDMS to SuperCDMS
The Cryogenic Dark Matter Search (CDMS) and SuperCDMS experiments seek hypothetical weakly-interacting, massive particles (WIMPs) that could account for the majority of matter in the Universe, by means of cryogenic germanium detectors. We provide an update on the status of the SuperCDMS experiment, and discuss the joint CDMS-EDELWEISS analysis.
متن کاملRecent results from the CDMS-II experiment
The Cryogenic Dark Matter Search experiment (CDMS) employs low-temperature Ge and Si detectors to detect WIMPs via their elastic scattering interaction with the target nuclei. The current analysis of 397.8 kg-days Ge exposure resulted in zero observed candidate events, setting an upper limit on the spin-independent WIMP-nucleon cross-section of 6.6× 10 cm (4.6× 10 cm, when previous CDMS Soudan ...
متن کامل