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1. Erratum: First Dark Matter Constraints from a SuperCDMS Single-Charge Sensitive Detector [Phys. Rev. Lett. 121 , 051301 (2018)]

Author

Betty A. Young, C. Cartaro, A. Kennedy, A. Phipps, Blas Cabrera, Chitrasen Jena, E. Fascione, D. H. Wright, Jodi Cooley, J. V. Leyva, Noah Kurinsky, R. Mahapatra, M. H. Kelsey, W. Rau, T. Binder, C. Stanford, Xingbo Zhao, E. Azadbakht, S. Scorza, E. H. Miller, P. L. Brink, Danielle Speller, J. Street, Amy Roberts, S. J. Yellin, Tsuguo Aramaki, P. Di Stefano, A. N. Villano, Matthew Fritts, S. M. Oser, R. Calkins, B. von Krosigk, Vuk Mandic, H. E. Rogers, R. Agnese, H. R. Harris, M. A. Bowles, T. Reynolds, H. Qiu, A. E. Robinson, V. Iyer, P. Lukens, W. A. Page, C. W. Fink, J. Sander, M. Stein, Martin E. Huber, Bruno Serfass, S. L. Watkins, John Wilson, D. Barker, I. J. Arnquist, D. Jardin, D. A. Bauer, S. Banik, Eric W. Hoppe, J. K. Nelson, S. S. Poudel, W. Baker, B. Cornell, T. Doughty, Fernando Ponce, A. Reisetter, L. Hsu, Ziqing Hong, J. D. Morales Mendoza, John L. Orrell, J. So, X. Zhang, N. Mirabolfathi, D. MacDonell, R. Underwood, Bedangadas Mohanty, A. Scarff, D. Toback, Tarek Saab, N. Mast, G. Gerbier, M. J. Wilson, Ben Loer, Hiromasa Tanaka, R. K. Romani, M. Pepin, David G. Cerdeño, T. Aralis, Matt Pyle, M. Ghaith, A. Kubik, Kartik Senapati, R. Partridge, Sunil Golwala, Yen-Yung Chang, J. Winchell, Bernard Sadoulet, Enectali Figueroa-Feliciano, E. Lopez Asamar, Ruth Lawrence, R. Germond, R. Bunker, R. W. Schnee, and P. Cushman

Subjects
Nuclear physics, Physics, Detector, Dark matter, General Physics and Astronomy, Charge (physics)
Abstract

This corrects the article DOI: 10.1103/PhysRevLett.121.051301.

Published
2019

2. Nuclear-recoil energy scale in CDMS II silicon dark-matter detectors

Author

X. Zhao, T. Binder, G.L. Godfrey, J. D. Morales Mendoza, R. Underwood, Martin E. Huber, Tarek Saab, K. Schneck, N. Mast, E. H. Miller, M. Pepin, R. Germond, Yi Chen, B. Welliver, J. Hall, A. W. Borgland, H. R. Harris, W. A. Page, Amy Roberts, Yu Kai Chang, S. Fallows, A. N. Villano, Betty A. Young, M. Ghaith, A. Kubik, R. W. Schnee, V. Iyer, S. M. Oser, R. Basu Thakur, Miguel Daal, H. A. Tanaka, S. J. Yellin, Tsuguo Aramaki, A. Phipps, Hassan Chagani, David G. Cerdeño, K. L. Page, T. Doughty, P. Lukens, S. Banik, R. Partridge, Robert A. Moffatt, Kevin A. McCarthy, John Wilson, B. Cornell, R. Calkins, E. Fascione, Sunil Golwala, P. Redl, Ziqing Hong, P. L. Brink, M. Stein, David Moore, M. Peñalver Martinez, Adam Anderson, M. J. Wilson, E. M. Dragowsky, J. K. Nelson, Donald J. Holmgren, C. Cartaro, W. Rau, David O. Caldwell, H. E. Rogers, M. A. Bowles, P. Cushman, J. Sander, S. Scorza, Danielle Speller, H. Qiu, P. Di Stefano, R. Agnese, J. Street, D. Balakishiyeva, L. Hsu, D. Toback, Matt Pyle, Bruno Serfass, Kartik Senapati, D. Jardin, R. Mahapatra, A. Leder, R. Bunker, A. Reisetter, D. MacDonell, C. Jena, G. Gerbier, L. Esteban, D. Barker, Jodi Cooley, M. H. Kelsey, D. A. Bauer, S. S. Poudel, W. Baker, J. J. Yen, Matthew Fritts, Vuk Mandic, X. Zhang, N. Mirabolfathi, Bedangadas Mohanty, A. Jastram, A. Kennedy, Blas Cabrera, Enectali Figueroa-Feliciano, E. Lopez Asamar, Noah Kurinsky, B. von Krosigk, Bernard Sadoulet, A. E. Robinson, and Douglas Wright

Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Dark matter, FOS: Physical sciences, Electron, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Recoil, Ionization, 0103 physical sciences, Neutron, Physics::Atomic Physics, 010306 general physics, Nuclear Experiment, Instrumentation and Methods for Astrophysics (astro-ph.IM), Instrumentation, Physics, Elastic scattering, 010308 nuclear & particles physics, Instrumentation and Detectors (physics.ins-det), 3. Good health, Semiconductor detector, Cryogenic Dark Matter Search, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The Cryogenic Dark Matter Search (CDMS II) experiment aims to detect dark matter particles that elastically scatter from nuclei in semiconductor detectors. The resulting nuclear-recoil energy depositions are detected by ionization and phonon sensors. Neutrons produce a similar spectrum of low-energy nuclear recoils in such detectors, while most other backgrounds produce electron recoils. The absolute energy scale for nuclear recoils is necessary to interpret results correctly. The energy scale can be determined in CDMS II silicon detectors using neutrons incident from a broad-spectrum $^{252}$Cf source, taking advantage of a prominent resonance in the neutron elastic scattering cross section of silicon at a recoil (neutron) energy near 20 (182) keV. Results indicate that the phonon collection efficiency for nuclear recoils is $4.8^{+0.7}_{-0.9}$% lower than for electron recoils of the same energy. Comparisons of the ionization signals for nuclear recoils to those measured previously by other groups at higher electric fields indicate that the ionization collection efficiency for CDMS II silicon detectors operated at $\sim$4 V/cm is consistent with 100% for nuclear recoils below 20 keV and gradually decreases for larger energies to $\sim$75% at 100 keV. The impact of these measurements on previously published CDMS II silicon results is small., Comment: 22 pages, 17 figures, 1 table, 1 appendix

Published
2018

3. Production Rate Measurement of Tritium and Other Cosmogenic Isotopes in Germanium with CDMSlite

Author

H. R. Harris, B. Loer, B. Serfass, W. A. Page, S. Scorza, E. Azadbakht, David G. Cerdeño, John L. Orrell, D. MacDonell, C. Cartaro, M. A. Bowles, Enectali Figueroa-Feliciano, R. Calkins, R. Ren, N. Mirabolfathi, Yu Kai Chang, A. N. Villano, S. M. Oser, Jodi Cooley, John Wilson, B. von Krosigk, G. Gerbier, Xingbo Zhao, T. Reynolds, Betty A. Young, J. Winchell, S. J. Yellin, Tsuguo Aramaki, H. E. Rogers, M. Ghaith, A. Kubik, S. L. Watkins, P. Cushman, J. D. Morales Mendoza, A. Kennedy, Blas Cabrera, Chitrasen Jena, H. A. Tanaka, P. L. Brink, Bernard Sadoulet, A. Scarff, H. Qiu, A. E. Robinson, R. Partridge, Matt Pyle, E. Lopez Asamar, Noah Kurinsky, B. Cornell, R. Underwood, D. Barker, T. Aralis, Kartik Senapati, D. Jardin, R. Agnese, Danielle Speller, I. J. Arnquist, Ruth Lawrence, Tarek Saab, N. Mast, P. Lukens, L. Hsu, T. Binder, Sunil Golwala, D. Toback, M. H. Kelsey, D. H. Wright, Ziqing Hong, R. Bunker, M. Stein, C. W. Fink, M. J. Wilson, S. Banik, Eric W. Hoppe, A. Reisetter, Martin E. Huber, W. Rau, Matthew Fritts, R. Germond, Vuk Mandic, J. K. Nelson, J. Sander, R. W. Schnee, M. Pepin, X. Zhang, Bedangadas Mohanty, A. Jastram, D. A. Bauer, S. S. Poudel, W. Baker, Fernando Ponce, E. Fascione, Amy Roberts, T. Doughty, J. Street, R. Mahapatra, V. Iyer, and E. H. Miller

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, Dark matter, chemistry.chemical_element, FOS: Physical sciences, Germanium, Radiation, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Ionization, 0103 physical sciences, Nuclear Experiment (nucl-ex), 010303 astronomy & astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Nuclear Experiment, Physics, Radionuclide, Isotope, 010308 nuclear & particles physics, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), Semiconductor detector, chemistry, Tritium, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Future direct searches for low-mass dark matter particles with germanium detectors, such as SuperCDMS SNOLAB, are expected to be limited by backgrounds from radioactive isotopes activated by cosmogenic radiation inside the germanium. There are limited experimental data available to constrain production rates and a large spread of theoretical predictions. We examine the calculation of expected production rates, and analyze data from the second run of the CDMS low ionization threshold experiment (CDMSlite) to estimate the rates for several isotopes. We model the measured CDMSlite spectrum and fit for contributions from tritium and other isotopes. Using the knowledge of the detector history, these results are converted to cosmogenic production rates at sea level. The production rates in atoms/(kg$\cdot$day) are 74$\pm$9 for $^3$H, 1.5$\pm$0.7 for $^{55}$Fe, 17$\pm$5 for $^{65}$Zn, and 30$\pm$18 for $^{68}$Ge., 14 pages, 10 figures, 5 tables. v5 contains the extended data release (and documentation) of the CDMSlite Run 2 data as ancillary files

Published
2018

4. First Dark Matter Constraints from a SuperCDMS Single-Charge Sensitive Detector

Author

C. Stanford, A. N. Villano, S. M. Oser, T. Reynolds, John L. Orrell, R. Underwood, D. MacDonell, B. Cornell, H. R. Harris, J. Street, W. A. Page, John Wilson, A. Scarff, C. Cartaro, P. L. Brink, Hiromasa Tanaka, Ruth Lawrence, E. Fascione, M. Pepin, N. Mirabolfathi, M. Ghaith, A. Kubik, D. Jardin, D. A. Bauer, J. D. Morales Mendoza, Sunil Golwala, S. S. Poudel, T. Doughty, W. Baker, Xingbo Zhao, Tarek Saab, N. Mast, S. Scorza, C. W. Fink, J. K. Nelson, R. Mahapatra, Fernando Ponce, R. Germond, R. W. Schnee, X. Zhang, M. H. Kelsey, B. Loer, B. Serfass, J. V. Leyva, M. Stein, D. Barker, Bedangadas Mohanty, J. Sander, T. Aralis, Amy Roberts, R. Agnese, Martin E. Huber, Betty A. Young, David G. Cerdeño, B. von Krosigk, E. H. Miller, P. Cushman, D. H. Wright, A. Phipps, Yu Kai Chang, R. K. Romani, Jodi Cooley, M. A. Bowles, S. Banik, Eric W. Hoppe, A. Kennedy, Matt Pyle, Blas Cabrera, Chitrasen Jena, T. Binder, S. J. Yellin, Tsuguo Aramaki, Matthew Fritts, Kartik Senapati, E. Azadbakht, Noah Kurinsky, Vuk Mandic, Enectali Figueroa-Feliciano, R. Partridge, R. Calkins, E. Lopez Asamar, V. Iyer, S. L. Watkins, J. Winchell, Bernard Sadoulet, A. E. Robinson, Danielle Speller, P. Lukens, P. Di Stefano, Ziqing Hong, M. J. Wilson, H. E. Rogers, H. Qiu, R. Bunker, A. Reisetter, W. Rau, J. So, G. Gerbier, I. J. Arnquist, L. Hsu, and D. Toback

Subjects
Physics, Photon, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, 010308 nuclear & particles physics, Detector, Dark matter, General Physics and Astronomy, FOS: Physical sciences, Charge (physics), Instrumentation and Detectors (physics.ins-det), Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, 7. Clean energy, Dark photon, Semiconductor detector, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Excited state, 0103 physical sciences, 010306 general physics, Absorption (electromagnetic radiation), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present the first limits on inelastic electron-scattering dark matter and dark photon absorption using a prototype SuperCDMS detector having a charge resolution of 0.1 electron-hole pairs (CDMS HVeV, a 0.93 gram CDMS HV device). These electron-recoil limits significantly improve experimental constraints on dark matter particles with masses as low as 1 MeV/$\mathrm{c^2}$. We demonstrate a sensitivity to dark photons competitive with other leading approaches but using substantially less exposure (0.49 gram days). These results demonstrate the scientific potential of phonon-mediated semiconductor detectors that are sensitive to single electronic excitations., 6 pages + title and references, 6 figures, includes erratum submitted to PRL and data release

Published
2018

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

Author

Tarek Saab, N. Mast, A. N. Villano, S. M. Oser, P. L. Brink, C. Cartaro, T. Reynolds, H. R. Harris, D. A. Bauer, W. A. Page, B. Welliver, S. S. Poudel, W. Baker, N. Mirabolfathi, Enectali Figueroa-Feliciano, R. Partridge, A. Kennedy, J. J. Yen, Jodi Cooley, Blas Cabrera, Betty A. Young, B. Cornell, Chitrasen Jena, D. H. Wright, D. Balakishiyeva, A. Phipps, S. Banik, Eric W. Hoppe, J. D. Morales Mendoza, Noah Kurinsky, Xingbo Zhao, A. E. Robinson, Yu Kai Chang, T. Binder, S. Scorza, Matthew Fritts, D. Barker, Bernard Sadoulet, Vuk Mandic, Sunil Golwala, I. J. Arnquist, G. Godfrey, Amy Roberts, P. Di Stefano, Martin E. Huber, M. H. Kelsey, S. J. Yellin, Tsuguo Aramaki, D. Jardin, John Wilson, M. Stein, D. O. Caldwell, L. Hsu, P. Cushman, E. Lopez Asamar, R. Agnese, R. Underwood, D. Toback, J. Hall, Miguel Daal, J. K. Nelson, X. Zhang, M. Peñalver Martinez, Bedangadas Mohanty, Matt Pyle, M. A. Bowles, B. von Krosigk, A. Jastram, Kartik Senapati, J. Sander, Hiromasa Tanaka, John L. Orrell, D. MacDonell, K. Schneck, E. Fascione, M. Pepin, V. Iyer, R. W. Schnee, R. Basu Thakur, K. L. Page, R. Calkins, T. Doughty, H. E. Rogers, H. Qiu, P. Redl, B. Loer, B. Serfass, E. H. Miller, R. Germond, Yi Chen, P. Lukens, Ziqing Hong, M. J. Wilson, Danielle Speller, M. Ghaith, A. Kubik, R. Mahapatra, J. Street, David G. Cerdeño, G. Gerbier, R. Bunker, A. Reisetter, and W. Rau

Subjects
Physics, Particle physics, 010308 nuclear & particles physics, Weakly interacting massive particles, 0103 physical sciences, General Physics and Astronomy, Cryogenic Dark Matter Search, 010306 general physics, 01 natural sciences, Event (particle physics)
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 1690 kg 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) cm2 at 46 GeV/c2. These results set the strongest limits for WIMP–germanium-nucleus interactions for masses >12 GeV/c2.

Published
2018

6. Projected sensitivity of the SuperCDMS SNOLAB experiment

Author

Xingbo Zhao, C. Cartaro, M. A. Bowles, R. Agnese, A. N. Villano, S. M. Oser, B. Welliver, John L. Orrell, Jodi Cooley, H. R. Harris, W. A. Page, David G. Cerdeño, G. Gerbier, Tarek Saab, N. Mast, I. J. Arnquist, Sunil Golwala, M. H. Kelsey, R. Underwood, D. Jardin, John Wilson, Bernard Sadoulet, L. Hsu, Hiromasa Tanaka, P. Di Stefano, M. Pepin, E. Lopez Asamar, N. Mirabolfathi, D. Toback, P. Redl, R. Basu Thakur, K. L. Page, R. Mahapatra, A. Leder, R. Calkins, H. E. Rogers, B. Cornell, Donald J. Holmgren, H. Qiu, A. W. Borgland, J. Street, D. Barker, J. D. Morales Mendoza, Danielle Speller, R. Bunker, J. J. Yen, S. Fallows, A. Reisetter, S. J. Yellin, Tsuguo Aramaki, M. Ghaith, Matt Pyle, W. Rau, V. Iyer, T. Doughty, A. Kubik, D. A. Bauer, Amy Roberts, S. S. Poudel, Enectali Figueroa-Feliciano, W. Baker, J. Sander, L. Esteban, P. Lukens, H. Chagani, Ziqing Hong, R. Partridge, Adam Anderson, Matthew Fritts, A. E. Robinson, Vuk Mandic, Yi Chen, Betty A. Young, T. Hofer, A. Phipps, M. Stein, X. Zhang, Miguel Daal, Robert A. Moffatt, A. Jastram, P. L. Brink, David O. Caldwell, D. H. Wright, Eric W. Hoppe, A. Kennedy, Blas Cabrera, Noah Kurinsky, K. Schneck, B. von Krosigk, B. Loer, B. Serfass, R. W. Schnee, P. Cushman, G.L. Godfrey, Martin E. Huber, and J. Hall

Subjects
Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Solar neutrino, Dark matter, FOS: Physical sciences, Atomic, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Particle and Plasma Physics, Recoil, 0103 physical sciences, Nuclear, 010306 general physics, physics.ins-det, Physics, Quantum Physics, hep-ex, 010308 nuclear & particles physics, Detector, Molecular, Instrumentation and Detectors (physics.ins-det), Nuclear & Particles Physics, Orders of magnitude (time), Weakly interacting massive particles, astro-ph.CO, High Energy Physics::Experiment, Cryogenic Dark Matter Search, Neutrino, Astronomical and Space Sciences, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

SuperCDMS SNOLAB will be a next-generation experiment aimed at directly detecting low-mass (< 10 GeV/c$^2$) particles that may constitute dark matter by using cryogenic detectors of two types (HV and iZIP) and two target materials (germanium and silicon). The experiment is being designed with an initial sensitivity to nuclear recoil cross sections ~ 1 x 10$^{-43}$ cm$^2$ for a dark matter particle mass of 1 GeV/c$^2$, and with capacity to continue exploration to both smaller masses and better sensitivities. The phonon sensitivity of the HV detectors will be sufficient to detect nuclear recoils from sub-GeV dark matter. A detailed calibration of the detector response to low energy recoils will be needed to optimize running conditions of the HV detectors and to interpret their data for dark matter searches. Low-activity shielding, and the depth of SNOLAB, will reduce most backgrounds, but cosmogenically produced $^{3}$H and naturally occurring $^{32}$Si will be present in the detectors at some level. Even if these backgrounds are x10 higher than expected, the science reach of the HV detectors would be over three orders of magnitude beyond current results for a dark matter mass of 1 GeV/c$^2$. The iZIP detectors are relatively insensitive to variations in detector response and backgrounds, and will provide better sensitivity for dark matter particle masses (> 5 GeV/c$^2$). The mix of detector types (HV and iZIP), and targets (germanium and silicon), planned for the experiment, as well as flexibility in how the detectors are operated, will allow us to maximize the low-mass reach, and understand the backgrounds that the experiment will encounter. Upgrades to the experiment, perhaps with a variety of ultra-low-background cryogenic detectors, will extend dark matter sensitivity down to the "neutrino floor", where coherent scatters of solar neutrinos become a limiting background., SuperCDMS SNOLAB Projected sensitivity reach

Published
2017

7. Geant4 Simulations of the SuperCDMS iZIP Detector Charge Carrier Propagation and FET Readout

Author

Tarek Saab, M. Asai, Blas Cabrera, R. Agnese, P. Redl, D. Brandt, S. Leman, Kevin A. McCarthy, and D. Wright

Subjects
Physics, Physics::Instrumentation and Detectors, business.industry, Phonon, Detector, Cat's-whisker detector, Electron, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Computational physics, Condensed Matter::Materials Science, Optics, Electric field, Weakly interacting massive particles, General Materials Science, Charge carrier, business, Voltage
Abstract

The SuperCDMS experiment aims to directly detect dark matter particles called WIMPs (weakly interacting massive particles). The detectors measure phonon and ionization energy due to nuclear and electron recoils from incident particles. The SuperCDMS Detector Monte Carlo group uses Geant4 to simulate electron-hole pairs ( $$e^-/h^+$$ ) and low temperature phonons. We use these simulations in order to study energy deposition in the detectors. Phonons and electron-hole pairs are tracked in a crystal detector. Because of the band structure of the crystals, the electrons undergo oblique propagation. The charge electrodes on each side of the detector are biased at different voltages while the phonon sensors are grounded. This creates a nearly uniform electric field through the bulk of the detector, with a complex shape near the surfaces. The electric field is calculated from interpolating on a tetrahedral mesh. The resulting TES phonon readout, as well as the FET charge readout are simulated. To calculate the FET readout, the Shockley-Ramo theorem is applied to simulate the current in the FET. The goal of this paper is to describe the theory and implementation of calculating the electric field, performing the charge carrier propagation, and simulating the FET readout of the SuperCDMS detectors.

Published
2014

8. New Results from the Search for Low-Mass Weakly Interacting Massive Particles with the CDMS Low Ionization Threshold Experiment

Author

B. Welliver, B. Shank, Matt Pyle, J. J. Yen, D. Barker, B. Loer, J. Hall, T. Doughty, B. Serfass, G. L. Godfrey, D. Jardin, R. Agnese, R. Basu Thakur, K. L. Page, Jodi Cooley, R. Calkins, H. R. Harris, N. Mirabolfathi, W. A. Page, Yi Chen, David G. Cerdeño, T. Hofer, D. Balakishiyeva, Y. Ricci, L. Esteban, R. Bunker, J. Zhang, J. D. Morales Mendoza, A. Jastram, M. Asai, A. Reisetter, Miguel Daal, S. Fallows, W. Rau, H. E. Rogers, P. Redl, Sunil Golwala, A. Kennedy, Martin E. Huber, D. A. Bauer, S. J. Yellin, Tsuguo Aramaki, H. Qiu, W. Baker, John Wilson, Blas Cabrera, Tarek Saab, N. Mast, Bernard Sadoulet, Robert A. Moffatt, E. Lopez Asamar, Amy Roberts, A. Borgland, Vuk Mandic, O. Kamaev, K. Prasad, A. Leder, B. Cornell, S. Upadhyayula, R. Underwood, J. Billard, M. Pepin, R. Partridge, Enectali Figueroa-Feliciano, R. W. Schnee, P. Cushman, M. H. Kelsey, Betty A. Young, A. Phipps, J. Sander, L. Hsu, D. Toback, M. Ghaith, P. Lukens, B. Kara, Adam Anderson, R. Mahapatra, H. Chagani, Donald J. Holmgren, Danielle Speller, M. A. Bowles, K. Schneck, D. H. Wright, P. L. Brink, David O. Caldwell, A. N. Villano, S. M. Oser, S. Scorza, and P. Di Stefano

Subjects
Physics, Particle physics, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Phonon, Astrophysics::Instrumentation and Methods for Astrophysics, General Physics and Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, Electron, Parameter space, 01 natural sciences, Semiconductor detector, Nuclear physics, WIMP, Weakly interacting massive particles, Ionization, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Low Mass
Abstract

© 2016 American Physical Society. 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 fiducialization cut reduces backgrounds below those previously reported by CDMSlite. New parameter space for the WIMP-nucleon spin-independent cross section is excluded for WIMP masses between 1.6 and 5.5 GeV/c2.

Published
2016

9. Search for low-mass weakly interacting massive particles with SuperCDMS

Author

B. Shank, Betty A. Young, D. Brandt, A. Leder, B. Loer, J. Beaty, B. Serfass, S. Upadhyayula, R. Agnese, A. Phipps, T. Hofer, D. Balakishiyeva, H. Chagani, R. Mahapatra, A. Jastram, A. Kennedy, Miguel Daal, R. Bunker, Y. Ricci, R. H. Nelson, S. Fallows, D. N. Seitz, Blas Cabrera, M. Platt, R. Partridge, A. Reisetter, H. R. Harris, M. Kiveni, L. Esteban, E. Lopez Asamar, S. Scorza, Matt Pyle, S. A. Hertel, B. Welliver, Yan Chen, W. Rau, R. Basu Thakur, A. W. Borgland, K. Koch, K. L. Page, Cristián Martínez, Vuk Mandic, J. Sander, K. Prasad, P. Di Stefano, L. Novak, Jodi Cooley, M. H. Kelsey, Danielle Speller, N. Mirabolfathi, Douglas Wright, S. J. Yellin, David G. Cerdeño, B. Kara, M. A. Bowles, M. Ruschman, A. N. Villano, Robert A. Moffatt, R. Resch, B. A. Hines, Sissel Hansen, O. Kamaev, E. Do Couto E Silva, G. Godfrey, J. Zhang, D. Devaney, L. Hsu, Kevin A. McCarthy, S. Kenany, P. Redl, M. Asai, T. Doughty, Adam Anderson, J. Hall, J. J. Yen, J. Billard, B. Cornell, C. H. Crewdson, Donald J. Holmgren, M. Pepin, Bernard Sadoulet, R. Schmitt, D. A. Bauer, Enectali Figueroa-Feliciano, Tarek Saab, Martin E. Huber, P. Cushman, K. Schneck, R. W. Schnee, P. L. Brink, David O. Caldwell, M. Cherry, Sunil Golwala, H. Qiu, and Astrid Tomada

Subjects
Nuclear physics, Physics, Particle physics, WIMP, Scattering, Weakly interacting massive particles, Signal region, Dark matter, General Physics and Astronomy, Parameter space, Low Mass
Abstract

We report a first search for weakly interacting massive particles (WIMPs) using the background rejection capabilities of SuperCDMS. An exposure of 577 kg days was analyzed for WIMPs with mass

Published
2014

10. Silicon detector dark matter results from the final exposure of CDMS II

Author

Matthew Fritts, Jeffrey P. Filippini, G.L. Godfrey, Jodi Cooley, M. H. Kelsey, Vuk Mandic, K. Prasad, S. A. Hertel, P. L. Brink, David O. Caldwell, Y. Ricci, T. Hofer, P. Nadeau, Steven W. Leman, M. Kos, B. Shank, D. Balakishiyeva, Martin E. Huber, Donald J. Holmgren, P. Cushman, J. Sander, K. Koch, A. W. Borgland, C. H. Crewdson, D. A. Bauer, L. Esteban, Miguel Daal, R. Basu Thakur, R. Partridge, A. Jastram, K. L. Page, S. Scorza, P. Redl, B. Loer, J. Hall, B. Serfass, R. H. Harris, Cristián Martínez, David Moore, Robert A. Moffatt, Bernard Sadoulet, S. Arrenberg, P. Kim, K. Schneck, J. J. Yen, H. Qiu, B. Kara, Z. Ahmed, R. Bunker, A. N. Villano, T. Bruch, B. Welliver, Betty A. Young, Sunil Golwala, A. Kennedy, Danielle Speller, David G. Cerdeño, N. Mirabolfathi, Douglas Wright, A. Reisetter, B. Cornell, Blas Cabrera, A. Phipps, K. M. Sundqvist, L. Hsu, W. Rau, R. Mahapatra, Kevin A. McCarthy, H. Chagani, R. W. Schnee, J. Fox, O. Kamaev, J. Zhang, F. DeJongh, E. Do Couto E Silva, Adam Anderson, D. Brandt, R. Agnese, S. Fallows, Enectali Figueroa-Feliciano, M. Kiveni, S. J. Yellin, Matt Pyle, E. Lopez Asamar, Tarek Saab, J. Yoo, J. Billard, M. Pepin, R. H. Nelson, T. Doughty, and UAM. Departamento de Física Teórica

Subjects
Particle physics, Physics - Instrumentation and Detectors, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Dark matter, FOS: Physical sciences, General Physics and Astronomy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Recoil, WIMP, 0103 physical sciences, Neutron, 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Physics, 010308 nuclear & particles physics, Física, Instrumentation and Detectors (physics.ins-det), Confidence interval, Semiconductor detector, Likelihood-ratio test, Weakly interacting massive particles, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We report results of a search for Weakly Interacting Massive Particles (WIMPS) with the silicon detectors of the CDMS II experiment. This blind analysis of 140.2 kg-days of data taken between July 2007 and September 2008 revealed three WIMP-candidate events with a surface-event background estimate of 0.41^{+0.20}_{-0.08}(stat.)^{+0.28}_{-0.24}(syst.). Other known backgrounds from neutrons and 206Pb are limited to < 0.13 and, 5 pages, 4 figures, as accepted by PRL

Published
2013

11. Demonstration of surface electron rejection with interleaved germanium detectors for dark matter searches

Author

C. J. Kenney, R. Partridge, R. Mahapatra, S. Fallows, R. Basu Thakur, S. Kenany, T. Doughty, Jodi Cooley, Adam Anderson, Jean-Paul Fox, K. L. Page, B. Shank, A. Jastram, D. A. Bauer, S. A. Hertel, Enectali Figueroa-Feliciano, K. Schneck, Jie Zhang, B. Loer, B. Serfass, H. R. Harris, S. J. Yellin, E. Lopez Asamar, O. Kamaev, L. Esteban, B. Kara, S. Scorza, P. Nadeau, A. Phipps, A. Kennedy, Jasmine Hasi, A. N. Villano, Danielle Speller, P. L. Brink, R. Resch, R. W. Schnee, M. H. Kelsey, Matthew Fritts, Y. Ricci, David G. Cerdeño, R. Radpour, B. Cornell, Blas Cabrera, Vuk Mandic, B. Welliver, R. Schmitt, David O. Caldwell, P. Redl, Sunil Golwala, P. Cushman, M. Kiveni, K. Prasad, Tarek Saab, Matt Pyle, Cristián Martínez, Donald J. Holmgren, Kevin A. McCarthy, P. C. F. Di Stefano, Betty A. Young, E. Do Couto E Silva, C. H. Crewdson, A. W. Borgland, T. Hofer, D. Balakishiyeva, M. Daal, R. Bunker, B. A. Hines, Robert A. Moffatt, Bernard Sadoulet, A. Reisetter, R. Nelson, David Moore, W. Rau, N. Mirabolfathi, R. Agnese, M. Pepin, J. J. Yen, M. Cherry, J. Sander, J. Hall, Astrid Tomada, M. E. Huber, D. Wright, H. Chagani, K. Koch, L. Novak, D. N. Seitz, H. Qiu, G. Godfrey, L. Hsu, D. Brandt, UAM. Departamento de Física Teórica, Massachusetts Institute of Technology. Department of Physics, Anderson, Adam Jonathan, Figueroa-Feliciano, Enectali, Hertel, Scott Alexander, and McCarthy, Kevin Ahmad

Subjects
Particle physics, Ionization, Technology, Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), astro-ph.GA, Dark matter, FOS: Physical sciences, chemistry.chemical_element, Cosmic ray, Germanium, Electron, Cryogenics, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Engineering, 0103 physical sciences, 010306 general physics, Electrodes, physics.ins-det, Leakage (electronics), Applied Physics, Physics, 010308 nuclear & particles physics, hep-ex, Detector, Física, Instrumentation and Detectors (physics.ins-det), Astrophysics - Astrophysics of Galaxies, Semiconductor detector, chemistry, Lead, Astrophysics of Galaxies (astro-ph.GA), Physical Sciences, Surface ionization
Abstract

The SuperCDMS experiment in the Soudan Underground Laboratory searches for dark matter with a 9-kg array of cryogenic germanium detectors. Symmetric sensors on opposite sides measure both charge and phonons from each particle interaction, providing excellent discrimination between electron and nuclear recoils, and between surface and interior events. Surface event rejection capabilities were tested with two [superscript 210] Pb sources producing ∼130 beta decays/hr. In ∼800 live hours, no events leaked into the 8–115 keV signal region, giving upper limit leakage fraction 1.7 × 10[superscript −5] at 90% C.L., corresponding to, United States. Dept. of Energy (Contract No. DE-AC03-76SF00098), United States. Dept. of Energy (Contract No. DE-FG02-92ER40701), United States. Dept. of Energy (Contract No. DE-FG02-94ER40823), United States. Dept. of Energy (Contract No. DE-FG03-90ER40569), United States. Dept. of Energy (Contract No. DE-FG03-91ER40618), United States. Dept. of Energy (Contract No. DE-SC0004022), National Science Foundation (U.S.) (Grant No. AST-9978911), National Science Foundation (U.S.) (Grant No. NSF-0847342), National Science Foundation (U.S.) (Grant No. PHY-1102795), National Science Foundation (U.S.) (Grant No. NSF-1151869), National Science Foundation (U.S.) (Grant No. PHY-0542066), National Science Foundation (U.S.) (Grant No. PHY-0503729), National Science Foundation (U.S.) (Grant No. PHY-0503629), National Science Foundation (U.S.) (Grant No. PHY-0503641), National Science Foundation (U.S.) (Grant No. PHY-0504224), National Science Foundation (U.S.) (Grant No. PHY-0705052), National Science Foundation (U.S.) (Grant No. PHY-0801708), National Science Foundation (U.S.) (Grant No. PHY-0801712), National Science Foundation (U.S.) (Grant No. PHY-0802575), National Science Foundation (U.S.) (Grant No. PHY-0847342), National Science Foundation (U.S.) (Grant No. PHY-0855299), National Science Foundation (U.S.) (Grant No. PHY-0855525), National Science Foundation (U.S.) (Grant No. PHY-1205898)

Published
2013

12. Search for low-mass weakly interacting massive particles using voltage-assisted calorimetric ionization detection in the SuperCDMS experiment

Author

H. R. Harris, B. Welliver, Enectali Figueroa-Feliciano, S. A. Hertel, A. Jastram, L. Hsu, K. Schneck, R. Partridge, P. Nadeau, C. H. Crewdson, N. Mirabolfathi, Sunil Golwala, Douglas Wright, R. W. Schnee, T. Doughty, Bernard Sadoulet, Adam Anderson, B. Cornell, R. Agnese, E. Lopez Asamar, A. N. Villano, K. Koch, David G. Cerdeño, R. Basu Thakur, K. L. Page, Betty A. Young, D. A. Bauer, J. Billard, P. L. Brink, M. Kiveni, Jodi Cooley, S. Fallows, R. Bunker, Matt Pyle, Kevin A. McCarthy, A. Phipps, P. Redl, M. H. Kelsey, O. Kamaev, J. Zhang, Danielle Speller, David Moore, A. Reisetter, P. Cushman, M. Pepin, Y. Ricci, J. J. Yen, W. Rau, L. Esteban, S. J. Yellin, G.L. Godfrey, Cristián Martínez, Tarek Saab, D. O. Caldwell, Vuk Mandic, M. Asai, M. A. Bowles, D. Brandt, K. Prasad, Robert A. Moffatt, J. Sander, H. Chagani, S. Scorza, R. H. Nelson, H. Qiu, Martin E. Huber, P. Di Stefano, J. Hall, A. Kennedy, Blas Cabrera, B. Shank, B. Loer, B. Serfass, T. Hofer, D. Balakishiyeva, Miguel Daal, Donald J. Holmgren, A. W. Borgland, B. Kara, R. Mahapatra, and UAM. Departamento de Física Teórica

Subjects
Physics, Particle physics, Calorimeter (particle physics), Physics::Instrumentation and Detectors, Dark matter, Astrophysics::Instrumentation and Methods for Astrophysics, General Physics and Astronomy, Física, Electron, Astrophysics::Cosmology and Extragalactic Astrophysics, 7. Clean energy, WIMP, Ionization, Weakly interacting massive particles, High Energy Physics::Experiment, Cryogenic Dark Matter Search, Electron equivalent
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, Funding and support were received from the National Science Foundation, the Department of Energy, a Fermilab URA Visiting Scholar Award, NSERC Canada, and MULTIDARK. Fermilab is operated by the Fermi Research Alliance, LLC under Contract No. De-AC02- 07CH11359. SLAC is operated under Contract No. DEAC02- 76SF00515 with the United States Department of Energy

Published
2013

13. Publisher’s Note: Silicon detector results from the first five-tower run of CDMS II [Phys. Rev. D88, 031104(R) (2013)]

Author

B. Welliver, A. N. Villano, E. Do Couto E Silva, D. Brandt, Kevin A. McCarthy, F. DeJongh, K. Koch, J. Hall, P. Redl, L. Hsu, David Moore, W. Rau, R. H. Harris, R. H. Nelson, Jeffrey P. Filippini, Tarek Saab, G.L. Godfrey, Douglas Wright, S. Scorza, J. Sander, Sunil Golwala, P. Di Stefano, Martin E. Huber, D. O. Caldwell, Betty A. Young, A. W. Borgland, R. Mahapatra, J. Zhang, A. Phipps, K. M. Sundqvist, Danielle Speller, Robert A. Moffatt, R. Basu Thakur, K. L. Page, K. Schneck, C. H. Crewdson, Donald J. Holmgren, R. Agnese, M. Pepin, Y. Ricci, Adam Anderson, S. Arrenberg, R. Bunker, P. L. Brink, Peter S. Kim, L. Esteban, S. A. Hertel, Cristián Martínez, M. Kos, P. Nadeau, Z. Ahmed, David G. Cerdeño, J. Yoo, H. Chagani, Bernard Sadoulet, S. J. Yellin, B. Kara, R. Partridge, R. W. Schnee, Steven W. Leman, B. Cornell, P. Cushman, H. Qiu, Jodi Cooley, M. H. Kelsey, T. Hofer, D. Balakishiyeva, Miguel Daal, Enectali Figueroa-Feliciano, T. Doughty, O. Kamaev, M. Pyle, J. J. Yen, Jean-Paul Fox, B. Shank, S. Fallows, A. Kennedy, Blas Cabrera, N. Mirabolfathi, T. Bruch, Bruno Serfass, M. Kiveni, A. Jastram, A. Reisetter, Matthew Fritts, E. Lopez-Asamar, Vuk Mandic, K. Prasad, and D. A. Bauer

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Dark matter, Silicon detector, Tower (mathematics)
Published
2013

14. Silicon detector results from the first five-tower run of CDMS II

Author

Y. Ricci, O. Kamaev, Jeffrey P. Filippini, B. Welliver, G.L. Godfrey, Peter S. Kim, Cristián Martínez, B. Cornell, Martin E. Huber, A. W. Borgland, R. H. Nelson, E. Do Couto E Silva, Steven W. Leman, K. Koch, P. L. Brink, S. Scorza, M. Kiveni, Matt Pyle, T. Hofer, P. Cushman, T. Doughty, David O. Caldwell, D. Balakishiyeva, B. Kara, P. Di Stefano, S. Fallows, Adam Anderson, A. Jastram, A. N. Villano, S. J. Yellin, M. Kos, J. Sander, Tarek Saab, Miguel Daal, Robert A. Moffatt, Sunil Golwala, David G. Cerdeño, J. Hall, S. A. Hertel, Donald J. Holmgren, Kevin A. McCarthy, F. DeJongh, R. Partridge, R. Agnese, S. Arrenberg, P. Nadeau, J. Fox, K. Schneck, Danielle Speller, M. Pepin, R. W. Schnee, N. Mirabolfathi, H. Chagani, L. Hsu, Douglas Wright, R. Mahapatra, Jodi Cooley, J. Zhang, R. Basu Thakur, M. H. Kelsey, K. L. Page, R. H. Harris, J. Yoo, Betty A. Young, L. Esteban, A. Phipps, K. M. Sundqvist, R. Bunker, H. Qiu, T. Bruch, A. Reisetter, W. Rau, D. Brandt, D. A. Bauer, Z. Ahmed, Matthew Fritts, E. Lopez-Asamar, Vuk Mandic, K. Prasad, P. Redl, David Moore, J. J. Yen, B. Shank, B. Serfass, C. H. Crewdson, A. Kennedy, Blas Cabrera, Bernard Sadoulet, Enectali Figueroa-Feliciano, and UAM. Departamento de Física Teórica

Subjects
Nuclear and High Energy Physics, Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics::Instrumentation and Detectors, Dark matter, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Parameter space, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), WIMP, 0103 physical sciences, 010306 general physics, Physics, Elastic scattering, Range (particle radiation), 010308 nuclear & particles physics, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Física, Semiconductor detector, Weakly interacting massive particles, High Energy Physics::Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM, We report results of a search for weakly interacting massive particles (WIMPs) with the Si detectors of the CDMS II experiment. This report describes a blind analysis of the first data taken with CDMS II’s full complement of detectors in 2006–2007; results from this exposure using the Ge detectors have already been presented. We observed no candidate WIMP-scattering events in an exposure of 55.9 kg-days before analysis cuts, with an expected background of ˞1.1 events. The exposure of this analysis is equivalent to 10.3 kg-days over a recoil energy range of 7–100 keV for an ideal Si detector and a WIMP mass of 10 GeV/c2. These data set an upper limit of 1.7 x 10-41 cm2 on the WIMP-nucleon spin-independent cross section of a 10 GeV/c2 WIMP. These data exclude parameter space for spin-independent WIMP-nucleon elastic scattering that is relevant to recent searches for low-mass WIMPs, This work is supported in part by the National Science Foundation (Grants No. AST-9978911, No. NSF-1102795, No. PHY- 0847342, No. PHY-0542066, No. PHY-0503729, No. PHY- 0503629, No. PHY-0503641, No. PHY-0504224, No. PHY-0705052, No. PHY-0801708, No. PHY-0801712, No. PHY-0802575, No. PHY-0847342, No. PHY-0855299, No. PHY-0855525, No. PHY-1151869, and No. PHY- 1205898), by the Department of Energy (Contracts No. DE-AC03-76SF00098, No. DE-FG02-92ER40701, No. DE-FG03-90ER40569, No. DE-FG03-91ER40618, and No. DE-SC0004022), by the Swiss National Foundation (SNF Grant No. 20-118119), by NSERC Canada (Grants No. SAPIN 341314 and No. SAPPJ 386399), and by MULTIDARK CSD2009-00064 and FPA2012-34694. Fermilab is operated by Fermi Research Alliance, LLC under Contract No. De-AC02-07CH11359, while SLAC is operated under Contract No. DE-AC02- 76SF00515 with the U.S. Department of Energy

Published
2013

15. Data Analysis and Double Pulse Identification for the MARE Experiment

Author

Flavio Gatti, K. K. Zych, R. Agnese, Tarek Saab, J. D. Armstrong, Massimiliano Galeazzi, K. Prasai, and Y. Uprety

Subjects
Physics, Monte Carlo method, Detector, Function (mathematics), Astrophysics, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Pulse (physics), Identification (information), General Materials Science, Sensitivity (control systems), Neutrino, Transition edge sensor, Algorithm
Abstract

One of the critical limits on the sensitivity of direct neutrino mass experiment, such as MARE, is the background generated by unidentified double pulses. In our work developing an analysis system for MARE we have focused on comparing algorithms, and developing and testing an optimum algorithm for the identification (and removal) of double pulses. To test the algorithms we developed a Monte Carlo simulation that, based on the detectors physical parameters, generates realistic single and double events with known characteristics. In this paper we present our preliminary results on two algorithms used for double pulse identification and their efficiency as a function of pulse heights and separation.

Published
2012

16. Erratum: First Dark Matter Constraints from a SuperCDMS Single-Charge Sensitive Detector [Phys. Rev. Lett. 121, 051301 (2018)].

Author

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, Cartaro C, Cerdeño DG, Chang YY, Cooley J, Cornell B, Cushman P, Di Stefano PCF, Doughty T, Fascione E, Figueroa-Feliciano E, Fink C, Fritts M, Gerbier G, Germond R, Ghaith M, Golwala SR, Harris HR, Hong Z, Hoppe EW, Hsu L, Huber ME, Iyer V, Jardin D, Jena C, Kelsey MH, Kennedy A, Kubik A, Kurinsky NA, Lawrence RE, Leyva JV, Loer B, Lopez Asamar E, Lukens P, MacDonell D, Mahapatra R, Mandic V, Mast N, Miller EH, Mirabolfathi N, Mohanty B, Morales Mendoza JD, Nelson J, Orrell JL, Oser SM, Page WA, Partridge R, Pepin M, Phipps A, Ponce F, Poudel S, Pyle M, Qiu H, Rau W, Reisetter A, Reynolds T, Roberts A, Robinson AE, Rogers HE, Romani RK, Saab T, Sadoulet B, Sander J, Scarff A, Schnee RW, Scorza S, Senapati K, Serfass B, So J, Speller D, Stanford C, Stein M, Street J, Tanaka HA, Toback D, Underwood R, Villano AN, von Krosigk B, Watkins SL, Wilson JS, Wilson MJ, Winchell J, Wright DH, Yellin S, Young BA, Zhang X, and Zhao X

Abstract

This corrects the article DOI: 10.1103/PhysRevLett.121.051301.

Published
2019
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17. First Dark Matter Constraints from a SuperCDMS Single-Charge Sensitive Detector.

Author

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, Cartaro C, Cerdeño DG, Chang YY, Cooley J, Cornell B, Cushman P, Di Stefano PCF, Doughty T, Fascione E, Figueroa-Feliciano E, Fink C, Fritts M, Gerbier G, Germond R, Ghaith M, Golwala SR, Harris HR, Hong Z, Hoppe EW, Hsu L, Huber ME, Iyer V, Jardin D, Jena C, Kelsey MH, Kennedy A, Kubik A, Kurinsky NA, Lawrence RE, Leyva JV, Loer B, Lopez Asamar E, Lukens P, MacDonell D, Mahapatra R, Mandic V, Mast N, Miller EH, Mirabolfathi N, Mohanty B, Morales Mendoza JD, Nelson J, Orrell JL, Oser SM, Page WA, Partridge R, Pepin M, Phipps A, Ponce F, Poudel S, Pyle M, Qiu H, Rau W, Reisetter A, Reynolds T, Roberts A, Robinson AE, Rogers HE, Romani RK, Saab T, Sadoulet B, Sander J, Scarff A, Schnee RW, Scorza S, Senapati K, Serfass B, So J, Speller D, Stanford C, Stein M, Street J, Tanaka HA, Toback D, Underwood R, Villano AN, von Krosigk B, Watkins SL, Wilson JS, Wilson MJ, Winchell J, Wright DH, Yellin S, Young BA, Zhang X, and Zhao X

Abstract

We present the first limits on inelastic electron-scattering dark matter and dark photon absorption using a prototype SuperCDMS detector having a charge resolution of 0.1 electron-hole pairs (CDMS HVeV, a 0.93 g CDMS high-voltage device). These electron-recoil limits significantly improve experimental constraints on dark matter particles with masses as low as 1  MeV/c^{2}. We demonstrate a sensitivity to dark photons competitive with other leading approaches but using substantially less exposure (0.49 g d). These results demonstrate the scientific potential of phonon-mediated semiconductor detectors that are sensitive to single electronic excitations.

Published
2018
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18. Results from the Super Cryogenic Dark Matter Search Experiment at Soudan.

Author

Agnese R, Aramaki T, Arnquist IJ, Baker W, Balakishiyeva D, Banik S, Barker D, Basu Thakur R, Bauer DA, Binder T, Bowles MA, Brink PL, Bunker R, Cabrera B, Caldwell DO, Calkins R, Cartaro C, Cerdeño DG, Chang Y, Chen Y, Cooley J, Cornell B, Cushman P, Daal M, Di Stefano PCF, Doughty T, Fascione E, Figueroa-Feliciano E, Fritts M, Gerbier G, Germond R, Ghaith M, Godfrey GL, Golwala SR, Hall J, Harris HR, Hong Z, Hoppe EW, Hsu L, Huber ME, Iyer V, Jardin D, Jastram A, Jena C, Kelsey MH, Kennedy A, Kubik A, Kurinsky NA, Loer B, Lopez Asamar E, Lukens P, MacDonell D, Mahapatra R, Mandic V, Mast N, Miller EH, Mirabolfathi N, Mohanty B, Morales Mendoza JD, Nelson J, Orrell JL, Oser SM, Page K, Page WA, Partridge R, Penalver Martinez M, Pepin M, Phipps A, Poudel S, Pyle M, Qiu H, Rau W, Redl P, Reisetter A, Reynolds T, Roberts A, Robinson AE, Rogers HE, Saab T, Sadoulet B, Sander J, Schneck K, Schnee RW, Scorza S, Senapati K, Serfass B, Speller D, Stein M, Street J, Tanaka HA, Toback D, Underwood R, Villano AN, von Krosigk B, Welliver B, Wilson JS, Wilson MJ, Wright DH, Yellin S, Yen JJ, Young BA, Zhang X, and Zhao X

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 1690 kg 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}.

Published
2018
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19. New Results from the Search for Low-Mass Weakly Interacting Massive Particles with the CDMS Low Ionization Threshold Experiment.

Author

Agnese R, Anderson AJ, Aramaki T, Asai M, Baker W, Balakishiyeva D, Barker D, Basu Thakur R, Bauer DA, Billard J, Borgland A, Bowles MA, Brink PL, Bunker R, Cabrera B, Caldwell DO, Calkins R, Cerdeno DG, Chagani H, Chen Y, Cooley J, Cornell B, Cushman P, Daal M, Di Stefano PC, Doughty T, Esteban L, Fallows S, Figueroa-Feliciano E, Ghaith M, Godfrey GL, Golwala SR, Hall J, Harris HR, Hofer T, Holmgren D, Hsu L, Huber ME, Jardin D, Jastram A, Kamaev O, Kara B, Kelsey MH, Kennedy A, Leder A, Loer B, Lopez Asamar E, Lukens P, Mahapatra R, Mandic V, Mast N, Mirabolfathi N, Moffatt RA, Morales Mendoza JD, Oser SM, Page K, Page WA, Partridge R, Pepin M, Phipps A, Prasad K, Pyle M, Qiu H, Rau W, Redl P, Reisetter A, Ricci Y, Roberts A, Rogers HE, Saab T, Sadoulet B, Sander J, Schneck K, Schnee RW, Scorza S, Serfass B, Shank B, Speller D, Toback D, Underwood R, Upadhyayula S, Villano AN, Welliver B, Wilson JS, Wright DH, Yellin S, Yen JJ, Young BA, and Zhang J

Abstract

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 fiducialization cut reduces backgrounds below those previously reported by CDMSlite. New parameter space for the WIMP-nucleon spin-independent cross section is excluded for WIMP masses between 1.6 and 5.5  GeV/c^{2}.

Published
2016
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20. First direct limits on lightly ionizing particles with electric charge less than e/6.

Author

Agnese R, Anderson AJ, Balakishiyeva D, Basu Thakur R, Bauer DA, Billard J, Borgland A, Bowles MA, Brandt D, Brink PL, Bunker R, Cabrera B, Caldwell DO, Cerdeno DG, Chagani H, Chen Y, Cooley J, Cornell B, Crewdson CH, Cushman P, Daal M, Di Stefano PC, Doughty T, Esteban L, Fallows S, Figueroa-Feliciano E, Godfrey GL, Golwala SR, Hall J, Harris HR, Hertel SA, Hofer T, Holmgren D, Hsu L, Huber ME, Jastram A, Kamaev O, Kara B, Kelsey MH, Kennedy A, Kiveni M, Koch K, Leder A, Loer B, Lopez Asamar E, Mahapatra R, Mandic V, Martinez C, McCarthy KA, Mirabolfathi N, Moffatt RA, Moore DC, Nelson H, Nelson RH, Ogburn RW, Page K, Page WA, Partridge R, Pepin M, Phipps A, Prasad K, Pyle M, Qiu H, Rau W, Redl P, Reisetter A, Ricci Y, Rogers HE, Saab T, Sadoulet B, Sander J, Schneck K, Schnee RW, Scorza S, Serfass B, Shank B, Speller D, Upadhyayula S, Villano AN, Welliver B, Wright DH, Yellin S, Yen JJ, Young BA, and Zhang J

Abstract

While the standard model of particle physics does not include free particles with fractional charge, experimental searches have not ruled out their existence. We report results from the Cryogenic Dark Matter Search (CDMS II) experiment that give the first direct-detection limits for cosmogenically produced relativistic particles with electric charge lower than e/6. A search for tracks in the six stacked detectors of each of two of the CDMS II towers finds no candidates, thereby excluding new parameter space for particles with electric charges between e/6 and e/200.

Published
2015
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21. Search for low-mass weakly interacting massive particles with SuperCDMS.

Author

Agnese R, Anderson AJ, Asai M, Balakishiyeva D, Basu Thakur R, Bauer DA, Beaty J, Billard J, Borgland A, Bowles MA, Brandt D, Brink PL, Bunker R, Cabrera B, Caldwell DO, Cerdeno DG, Chagani H, Chen Y, Cherry M, Cooley J, Cornell B, Crewdson CH, Cushman P, Daal M, DeVaney D, Di Stefano PC, Silva Edo C, Doughty T, Esteban L, Fallows S, Figueroa-Feliciano E, Godfrey GL, Golwala SR, Hall J, Hansen S, Harris HR, Hertel SA, Hines BA, Hofer T, Holmgren D, Hsu L, Huber ME, Jastram A, Kamaev O, Kara B, Kelsey MH, Kenany S, Kennedy A, Kiveni M, Koch K, Leder A, Loer B, Lopez Asamar E, Mahapatra R, Mandic V, Martinez C, McCarthy KA, Mirabolfathi N, Moffatt RA, Nelson RH, Novak L, Page K, Partridge R, Pepin M, Phipps A, Platt M, Prasad K, Pyle M, Qiu H, Rau W, Redl P, Reisetter A, Resch RW, Ricci Y, Ruschman M, Saab T, Sadoulet B, Sander J, Schmitt RL, Schneck K, Schnee RW, Scorza S, Seitz DN, Serfass B, Shank B, Speller D, Tomada A, Upadhyayula S, Villano AN, Welliver B, Wright DH, Yellin S, Yen JJ, Young BA, and Zhang J

Abstract

We report a first search for weakly interacting massive particles (WIMPs) using the background rejection capabilities of SuperCDMS. An exposure of 577 kg days was analyzed for WIMPs with mass <30  GeV/c(2), with the signal region blinded. Eleven events were observed after unblinding. We set an upper limit on the spin-independent WIMP-nucleon cross section of 1.2×10(-42)  cm(2) at 8  GeV/c(2). This result is in tension with WIMP interpretations of recent experiments and probes new parameter space for WIMP-nucleon scattering for WIMP masses <6  GeV/c(2).

Published
2014
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22. Search for low-mass weakly interacting massive particles using voltage-assisted calorimetric ionization detection in the SuperCDMS experiment.

Author

Agnese R, Anderson AJ, Asai M, Balakishiyeva D, Basu Thakur R, Bauer DA, Billard J, Borgland A, Bowles MA, Brandt D, Brink PL, Bunker R, Cabrera B, Caldwell DO, Cerdeno DG, Chagani H, Cooley J, Cornell B, Crewdson CH, Cushman P, Daal M, Di Stefano PC, Doughty T, Esteban L, Fallows S, Figueroa-Feliciano E, Godfrey GL, Golwala SR, Hall J, Harris HR, Hertel SA, Hofer T, Holmgren D, Hsu L, Huber ME, Jastram A, Kamaev O, Kara B, Kelsey MH, Kennedy A, Kiveni M, Koch K, Loer B, Lopez Asamar E, Mahapatra R, Mandic V, Martinez C, McCarthy KA, Mirabolfathi N, Moffatt RA, Moore DC, Nadeau P, Nelson RH, Page K, Partridge R, Pepin M, Phipps A, Prasad K, Pyle M, Qiu H, Rau W, Redl P, Reisetter A, Ricci Y, Saab T, Sadoulet B, Sander J, Schneck K, Schnee RW, Scorza S, Serfass B, Shank B, Speller D, Villano AN, Welliver B, Wright DH, Yellin S, Yen JJ, Young BA, and Zhang J

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.

Published
2014
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23. Silicon detector dark matter results from the final exposure of CDMS II.

Author

Agnese R, Ahmed Z, Anderson AJ, Arrenberg S, Balakishiyeva D, Basu Thakur R, Bauer DA, Billard J, Borgland A, Brandt D, Brink PL, Bruch T, Bunker R, Cabrera B, Caldwell DO, Cerdeno DG, Chagani H, Cooley J, Cornell B, Crewdson CH, Cushman P, Daal M, Dejongh F, do Couto e Silva E, Doughty T, Esteban L, Fallows S, Figueroa-Feliciano E, Filippini J, Fox J, Fritts M, Godfrey GL, Golwala SR, Hall J, Harris RH, Hertel SA, Hofer T, Holmgren D, Hsu L, Huber ME, Jastram A, Kamaev O, Kara B, Kelsey MH, Kennedy A, Kim P, Kiveni M, Koch K, Kos M, Leman SW, Loer B, Lopez Asamar E, Mahapatra R, Mandic V, Martinez C, McCarthy KA, Mirabolfathi N, Moffatt RA, Moore DC, Nadeau P, Nelson RH, Page K, Partridge R, Pepin M, Phipps A, Prasad K, Pyle M, Qiu H, Rau W, Redl P, Reisetter A, Ricci Y, Saab T, Sadoulet B, Sander J, Schneck K, Schnee RW, Scorza S, Serfass B, Shank B, Speller D, Sundqvist KM, Villano AN, Welliver B, Wright DH, Yellin S, Yen JJ, Yoo J, Young BA, and Zhang J

Abstract

We report results of a search for weakly interacting massive particles (WIMPS) with the silicon detectors of the CDMS II experiment. This blind analysis of 140.2 kg day of data taken between July 2007 and September 2008 revealed three WIMP-candidate events with a surface-event background estimate of 0.41(-0.08)(+0.20)(stat)(-0.24)(+0.28)(syst). Other known backgrounds from neutrons and 206Pb are limited to <0.13 and <0.08 events at the 90% confidence level, respectively. The exposure of this analysis is equivalent to 23.4 kg day for a recoil energy range of 7-100 keV for a WIMP of mass 10  GeV/c2. The probability that the known backgrounds would produce three or more events in the signal region is 5.4%. A profile likelihood ratio test of the three events that includes the measured recoil energies gives a 0.19% probability for the known-background-only hypothesis when tested against the alternative WIMP+background hypothesis. The highest likelihood occurs for a WIMP mass of 8.6  GeV/c2 and WIMP-nucleon cross section of 1.9×10(-41)  cm2.

Published
2013
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