Search

Your search keyword '"Arrenberg, S."' showing total 31 results
Start Over Author "Arrenberg, S."
31 results on '"Arrenberg, S."'

1. Silicon Detector Dark Matter Results from the Final Exposure of CDMS II

Author

CDMS Collaboration, Agnese, R., Ahmed, Z., Anderson, A. J., Arrenberg, S., Balakishiyeva, D., Thakur, R. Basu, Bauer, D. A., Billard, J., Borgland, A., Brandt, D., Brink, P. L., Bruch, T., Bunker, R., Cabrera, B., Caldwell, D. O., Cerdeno, D. G., Chagani, H., Cooley, J., Cornell, B., Crewdson, C. H., Cushman, P., Daal, M., Dejongh, F., Silva, E. Do Couto E, Doughty, T., Esteban, L., Fallows, S., Figueroa-Feliciano, E., Filippini, J., Fox, J., Fritts, M., Godfrey, G. L., Golwala, S. R., Hall, J., Harris, R. H., Hertel, S. A., Hofer, T., Holmgren, D., Hsu, L., Huber, M. E., Jastram, A., Kamaev, O., Kara, B., Kelsey, M. H., Kennedy, A., Kim, P., Kiveni, M., Koch, K., Kos, M., Leman, S. W., Loer, B., Asamar, E. Lopez, Mahapatra, R., Mandic, V., Martinez, C., McCarthy, K. A., Mirabolfathi, N., Moffatt, R. A., Moore, D. C., Nadeau, P., Nelson, R. H., 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, R. W., Scorza, S., Serfass, B., Shank, B., Speller, D., Sundqvist, K. M., Villano, A. N., Welliver, B., Wright, D. H., Yellin, S., Yen, J. J., Yoo, J., Young, B. A., and Zhang, J.

Subjects
High Energy Physics - Experiment, Astrophysics - Cosmology and Extragalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
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 <0.08 events at the 90% confidence level, respectively. The exposure of this analysis is equivalent to 23.4 kg-days 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 1.9e-41 cm2., Comment: 5 pages, 4 figures, as accepted by PRL

Published
2013

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

Author

CDMS Collaboration, Agnese, R., Ahmed, Z., Anderson, A. J., Arrenberg, S., Balakishiyeva, D., Thakur, R. Basu, Bauer, D. A., Borgland, A., Brandt, D., Brink, P. L., Bruch, T., Bunker, R., Cabrera, B., Caldwell, D. O., Cerdeno, D. G., Chagani, H., Cooley, J., Cornell, B., Crewdson, C. H., Cushman, P., Daal, M., Dejongh, F., Di Stefano, P. C. F., Silva, E. do Couto e, Doughty, T., Esteban, L., Fallows, S., Figueroa-Feliciano, E., Filippini, J., Fox, J., Fritts, M., Godfrey, G. L., Golwala, S. R., Hall, J., Harris, R. H., Hertel, S. A., Hofer, T., Holmgren, D., Hsu, L., Huber, M. E., Jastram, A., Kamaev, O., Kara, B., Kelsey, M. H., Kennedy, A., Kim, P., Kiveni, M., Koch, K., Kos, M., Leman, S. W., Lopez-Asamar, E., Mahapatra, R., Mandic, V., Martinez, C., McCarthy, K. A., Mirabolfathi, N., Moffatt, R. A., Moore, D. C., Nadeau, P., Nelson, R. H., 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, R. W., Scorza, S., Serfass, B., Shank, B., Speller, D., Sundqvist, K. M., Villano, A. N., Welliver, B., Wright, D. H., Yellin, S., Yen, J. J., Yoo, J., Young, B. A., and Zhan, J.

Subjects
Astrophysics - Cosmology and Extragalactic Astrophysics, High Energy Physics - Experiment
Abstract

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 1.7x10-41 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., Comment: 5 pages, 4 figures; updated to match published version

Published
2013
Full Text
View/download PDF

3. Search for annual modulation in low-energy CDMS-II data

Author

CDMS Collaboration, Ahmed, Z., Akerib, D. S., Anderson, A. J., Arrenberg, S., Bailey, C. N., Balakishiyeva, D., Baudis, L., Bauer, D. A., Brink, P. L., Bruch, T., Bunker, R., Cabrera, B., Caldwell, D. O., Cooley, J., Cushman, P., Daal, M., DeJongh, F., Di Stefano, P. C. F., Dragowsky, M. R., Fallows, S., Figueroa-Feliciano, E., Filippini, J., Fox, J., Fritts, M., Golwala, S. R., Hall, J., Hertel, S. A., Hofer, T., Holmgren, D., Hsu, L., Huber, M. E., Kamaev, O., Kiveni, M., Kos, M., Leman, S. W., Liu, S., Mahapatra, R., Mandic, V., McCarthy, K. A., Mirabolfathi, N., Moore, D. C., Nelson, H., Ogburn, R. W., Phipps, A., Prasad, K., Pyle, M., Qiu, X., Rau, W., Reisetter, A., Ricci, Y., Saab, T., Sadoulet, B., Sander, J., Schnee, R. W., Seitz, D., Serfass, B., Speller, D., Sundqvist, K. M., Tarka, M., Thakur, R. B., Villano, A. N., Welliver, B., Yellin, S., Yoo, J., Young, B. A., and Zhang, J.

Subjects
Astrophysics - Cosmology and Extragalactic Astrophysics, High Energy Physics - Experiment
Abstract

We report limits on annual modulation of the low-energy event rate from the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory. Such a modulation could be produced by interactions from Weakly Interacting Massive Particles (WIMPs) with masses ~10 GeV/c^2. We find no evidence for annual modulation in the event rate of veto-anticoincident single-detector interactions consistent with nuclear recoils, and constrain the magnitude of any modulation to <0.06 event [keVnr kg day]^-1 in the 5-11.9 keVnr energy range at the 99% confidence level. These results disfavor an explanation for the reported modulation in the 1.2-3.2 keVee energy range in CoGeNT in terms of nuclear recoils resulting from elastic scattering of WIMPs at >98% confidence. For events consistent with electron recoils, no significant modulation is observed for either single- or multiple-detector interactions in the 3.0-7.4 keVee range., Comment: 5 pages, plus 8 pages supplementary materials

Published
2012

4. Combined Limits on WIMPs from the CDMS and EDELWEISS Experiments

Author

CDMS, Collaborations, EDELWEISS, Ahmed, Z., Akerib, D. S., Armengaud, E., Arrenberg, S., Augier, C., Bailey, C. N., Balakishiyeva, D., Baudis, L., Bauer, D. A., Benoît, A., Bergé, L., Blümer, J., Brink, P. L., Broniatowski, A., Bruch, T., Brudanin, V., Bunker, R., Cabrera, B., Caldwell, D. O., Censier, B., Chapellier, M., Chardin, G., Charlieux, F., Cooley, J., Coulter, P., Cox, G. A., Cushman, P., Daal, M., Defay, X., De Jesus, M., DeJongh, F., Di Stefano, P. C. F., Dolgorouki, Y., Domange, J., Dumoulin, L., Dragowsky, M. R., Eitel, K., Fallows, S., Figueroa-Feliciano, E., Filippini, J., Filosofov, D., Fourches, N., Fox, J., Fritts, M., Gascon, J., Gerbier, G., Gironnet, J., Golwala, S. R., Gros, M., Hall, J., Hennings-Yeomans, R., Henry, S., Hertel, S. A., Hervé, S., Holmgren, D., Hsu, L., Huber, M. E., Juillard, A., Kamaev, O., Kiveni, M., Kluck, H., Kos, M., Kozlov, V., Kraus, H., Kudryavtsev, V. A., Leman, S. W., Liu, S., Loaiza, P., Mahapatra, R., Mandic, V., Marnieros, S., Martinez, C., McCarthy, K. A., Mirabolfathi, N., Moore, D., Nadeau, P., Navick, X-F., Nelson, H., Nones, C., Ogburn, R. W., Olivieri, E., Pari, P., Pattavina, L., Paul, B., Phipps, A., Pyle, M., Qiu, X., Rau, W., Reisetter, A., Ricci, Y., Robinson, M., Rozov, S., Saab, T., Sadoulet, B., Sander, J., Sanglard, V., Schmidt, B., Schnee, R. W., Scorza, S., Seitz, D. N., Semikh, S., Serfass, B., Sundqvist, K. M., Tarka, M., Torrento-Coello, A. S., Vagneron, L., Verdier, M. -A., Walker, R. J., Wikus, P., Yakushev, E., Yellin, S., Yoo, J., Young, B. A., and Zhang, J.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment
Abstract

The CDMS and EDELWEISS collaborations have combined the results of their direct searches for dark matter using cryogenic germanium detectors. The total data set represents 614 kg.d equivalent exposure. A straightforward method of combination was chosen for its simplicity before data were exchanged between experiments. The results are interpreted in terms of limits on spin-independent WIMP-nucleon cross-section. For a WIMP mass of 90 GeV/c^2, where this analysis is most sensitive, a cross-section of 3.3 x 10^{-44} cm^2 is excluded at 90% CL. At higher WIMP masses, the combination improves the individual limits, by a factor 1.6 above 700 GeV/c^2. Alternative methods of combining the data provide stronger constraints for some ranges of WIMP masses and weaker constraints for others., Comment: Events, efficiencies, and main limit are available in text format (see README.txt)

Published
2011
Full Text
View/download PDF

5. Search for inelastic dark matter with the CDMS II experiment

Author

CDMS Collaboration, Ahmed, Z., Akerib, D. S., Arrenberg, S., Bailey, C. N., Balakishiyeva, D., Baudis, L., Bauer, D. A., Brink, P. L., Bruch, T., Bunker, R., Cabrera, B., Caldwell, D. O., Cooley, J., Silva, E. do Couto e, Cushman, P., Daal, M., DeJongh, F., Di Stefano, P., Dragowsky, M. R., Duong, L., Fallows, S., Figueroa-Feliciano, E., Filippini, J., Fox, J., Fritts, M., Golwala, S. R., Hall, J., Hennings-Yeomans, R., Hertel, S. A., Holmgren, D., Hsu, L., Huber, M. E., Kamaev, O., Kiveni, M., Kos, M., Leman, S. W., Liu, S., Mahapatra, R., Mandic, V., McCarthy, K. A., Mirabolfathi, N., Moore, D., Nelson, H., Ogburn, R. W., Phipps, A., Pyle, M., Qiu, X., Ramberg, E., Rau, W., Razeti, M., Reisetter, A., Resch, R., Saab, T., Sadoulet, B., Sander, J., Schnee, R. W., Seitz, D. N., Serfass, B., Sundqvist, K. M., Tarka, M., Wikus, P., Yellin, S., Yoo, J., Young, B. A., and Zhang, J.

Subjects
Astrophysics - Cosmology and Extragalactic Astrophysics, High Energy Physics - Experiment
Abstract

Results are presented from a reanalysis of the entire five-tower data set acquired with the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory, with an exposure of 969 kg-days. The analysis window was extended to a recoil energy of 150 keV, and an improved surface-event background-rejection cut was defined to increase the sensitivity of the experiment to the inelastic dark matter (iDM) model. Three dark matter candidates were found between 25 keV and 150 keV. The probability to observe three or more background events in this energy range is 11%. Because of the occurrence of these events the constraints on the iDM parameter space are slightly less stringent than those from our previous analysis, which used an energy window of 10-100 keV., Comment: 10 pages, 10 figures, minor changes to match published version, conclusion unchanged

Published
2010
Full Text
View/download PDF

6. Results from a Low-Energy Analysis of the CDMS II Germanium Data

Author

CDMS Collaboration, Ahmed, Z., Akerib, D. S., Arrenberg, S., Bailey, C. N., Balakishiyeva, D., Baudis, L., Bauer, D. A., Brink, P. L., Bruch, T., Bunker, R., Cabrera, B., Caldwell, D. O., Cooley, J., Silva, E. do Couto e, Cushman, P., Daal, M., DeJongh, F., Di Stefano, P., Dragowsky, M. R., Duong, L., Fallows, S., Figueroa-Feliciano, E., Filippini, J., Fox, J., Fritts, M., Golwala, S. R., Hall, J., Hennings-Yeomans, R., Hertel, S. A., Holmgren, D., Hsu, L., Huber, M. E., Kamaev, O., Kiveni, M., Kos, M., Leman, S. W., Liu, S., Mahapatra, R., Mandic, V., McCarthy, K. A., Mirabolfathi, N., Moore, D., Nelson, H., Ogburn, R. W., Phipps, A., Pyle, M., Qiu, X., Ramberg, E., Rau, W., Reisetter, A., Resch, R., Saab, T., Sadoulet, B., Sander, J., Schnee, R. W., Seitz, D. N., Serfass, B., Sundqvist, K. M., Tarka, M., Wikus, P., Yellin, S., Yoo, J., Young, B. A., and Zhang, J.

Subjects
Astrophysics - Cosmology and Extragalactic Astrophysics, High Energy Physics - Experiment
Abstract

We report results from a reanalysis of data from the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory. Data taken between October 2006 and September 2008 using eight germanium detectors are reanalyzed with a lowered, 2 keV recoil-energy threshold, to give increased sensitivity to interactions from Weakly Interacting Massive Particles (WIMPs) with masses below ~10 GeV/c^2. This analysis provides stronger constraints than previous CDMS II results for WIMP masses below 9 GeV/c^2 and excludes parameter space associated with possible low-mass WIMP signals from the DAMA/LIBRA and CoGeNT experiments., Comment: 9 pages, 8 figures. Supplemental material included as ancillary files. v3) Added appendix with additional details regarding energy scale and backgrounds

Published
2010
Full Text
View/download PDF

7. Analysis of the low-energy electron-recoil spectrum of the CDMS experiment

Author

Ahmed, Z., Akerib, D. S., Arrenberg, S., Bailey, C. N., Balakishiyeva, D., Baudis, L., Bauer, D. A., Beaty, J., Brink, P. L., Bruch, T., Bunker, R., Cabrera, B., Caldwell, D. O., Cooley, J., Cushman, P., DeJongh, F., Dragowsky, M. R., Duong, L., Figueroa-Feliciano, E., Filippini, J., Fritts, M., Golwala, S. R., Grant, D. R., Hall, J., Hennings-Yeomans, R., Hertel, S., Holmgren, D., Hsu, L., Huber, M. E., Kamaev, O., Kiveni, M., Kos, M., Leman, S. W., Mahapatra, R., Mandic, V., Moore, D., McCarthy, K. A., Mirabolfathi, N., Nelson, H., Ogburn, R. W., Pyle, M., Qiu, X., Ramberg, E., Rau, W., Reisetter, A., Saab, T., Sadoulet, B., Sander, J., Schnee, R. W., Seitz, D. N., Serfass, B., Sundqvist, K. M., Wang, G., Yellin, S., Yoo, J., Young, B. A., and Collaboration, the CDMS

Subjects
Astrophysics - Galaxy Astrophysics, Astrophysics - Cosmology and Extragalactic Astrophysics
Abstract

We report on the analysis of the low-energy electron-recoil spectrum from the CDMS II experiment using data with an exposure of 443.2 kg-days. The analysis provides details on the observed counting rate and possible background sources in the energy range of 2 - 8.5 keV. We find no significant excess in the counting rate above background, and compare this observation to the recent DAMA results. In the framework of a conversion of a dark matter particle into electromagnetic energy, our 90% confidence level upper limit of 0.246 events/kg/day at 3.15 keV is lower than the total rate above background observed by DAMA by 8.9$\sigma$. In absence of any specific particle physics model to provide the scaling in cross section between NaI and Ge, we assume a Z^2 scaling. With this assumption the observed rate in DAMA differs from the upper limit in CDMS by 6.8$\sigma$. Under the conservative assumption that the modulation amplitude is 6% of the total rate we obtain upper limits on the modulation amplitude a factor of ~2 less than observed by DAMA, constraining some possible interpretations of this modulation., Comment: 4 pages, 3 figures

Published
2009
Full Text
View/download PDF

8. Silicon Detector Dark Matter Results from the Final Exposure of CDMS II

Author

Agnese, R, Ahmed, Z, Anderson, AJ, Arrenberg, S, Balakishiyeva, D, Thakur, R Basu, 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, Asamar, E Lopez, 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

Subjects
CDMS Collaboration, hep-ex, astro-ph.CO, astro-ph.IM, physics.ins-det, Mathematical Sciences, Physical Sciences, Engineering, General Physics
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

Published
2013

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

Author

Agnese, R, Ahmed, Z, Anderson, AJ, Arrenberg, S, Balakishiyeva, D, Basu Thakur, R, Bauer, DA, 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, Di Stefano, PCF, 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, 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

Subjects
astro-ph.CO, hep-ex, Nuclear & Particles Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

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 1.7×10-41 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. © 2013 American Physical Society.

Published
2013

10. Combined limits on WIMPs from the CDMS and EDELWEISS experiments

Author

Ahmed, Z, Akerib, DS, Armengaud, E, Arrenberg, S, Augier, C, Bailey, CN, Balakishiyeva, D, Baudis, L, Bauer, DA, Benoît, A, Bergé, L, Blümer, J, Brink, PL, Broniatowski, A, Bruch, T, Brudanin, V, Bunker, R, Cabrera, B, Caldwell, DO, Censier, B, Chapellier, M, Chardin, G, Charlieux, F, Cooley, J, Coulter, P, Cox, GA, Cushman, P, Daal, M, Defay, X, De Jesus, M, DeJongh, F, Di Stefano, PCF, Dolgorouki, Y, Domange, J, Dumoulin, L, Dragowsky, MR, Eitel, K, Fallows, S, Figueroa-Feliciano, E, Filippini, J, Filosofov, D, Fourches, N, Fox, J, Fritts, M, Gascon, J, Gerbier, G, Gironnet, J, Golwala, SR, Gros, M, Hall, J, Hennings-Yeomans, R, Henry, S, Hertel, SA, Hervé, S, Holmgren, D, Hsu, L, Huber, ME, Juillard, A, Kamaev, O, Kiveni, M, Kluck, H, Kos, M, Kozlov, V, Kraus, H, Kudryavtsev, VA, Leman, SW, Liu, S, Loaiza, P, Mahapatra, R, Mandic, V, Marnieros, S, Martinez, C, McCarthy, KA, Mirabolfathi, N, Moore, D, Nadeau, P, Navick, X-F, Nelson, H, Nones, C, Ogburn, RW, Olivieri, E, Pari, P, Pattavina, L, Paul, B, Phipps, A, Pyle, M, Qiu, X, Rau, W, Reisetter, A, Ricci, Y, Robinson, M, Rozov, S, Saab, T, Sadoulet, B, Sander, J, Sanglard, V, Schmidt, B, Schnee, RW, Scorza, S, and Seitz, DN

Subjects
astro-ph.CO, hep-ex, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract

The CDMS and EDELWEISS collaborations have combined the results of their direct searches for dark matter using cryogenic germanium detectors. The total data set represents 614kg•days equivalent exposure. A straightforward method of combination was chosen for its simplicity before data were exchanged between experiments. The results are interpreted in terms of limits on spin-independent weakly interacting, massive particle (WIMP)-nucleon cross section. For a WIMP mass of 90GeV/c2, where this analysis is most sensitive, a cross section of 3.3×10-44cm2 is excluded at 90% C.L. At higher WIMP masses, the combination improves the individual limits, by a factor 1.6 above 700GeV/c2. Alternative methods of combining the data provide stronger constraints for some ranges of WIMP masses and weaker constraints for others. © 2011 American Physical Society.

Published
2011

11. Search for inelastic dark matter with the CDMS II experiment

Author

Ahmed, Z, Akerib, DS, Arrenberg, S, Bailey, CN, Balakishiyeva, D, Baudis, L, Bauer, DA, Brink, PL, Bruch, T, Bunker, R, Cabrera, B, Caldwell, DO, Cooley, J, do Couto e Silva, E, Cushman, P, Daal, M, DeJongh, F, Di Stefano, P, Dragowsky, MR, Duong, L, Fallows, S, Figueroa-Feliciano, E, Filippini, J, Fox, J, Fritts, M, Golwala, SR, Hall, J, Hennings-Yeomans, R, Hertel, SA, Holmgren, D, Hsu, L, Huber, ME, Kamaev, O, Kiveni, M, Kos, M, Leman, SW, Liu, S, Mahapatra, R, Mandic, V, McCarthy, KA, Mirabolfathi, N, Moore, D, Nelson, H, Ogburn, RW, Phipps, A, Pyle, M, Qiu, X, Ramberg, E, Rau, W, Razeti, M, Reisetter, A, Resch, R, Saab, T, Sadoulet, B, Sander, J, Schnee, RW, Seitz, DN, Serfass, B, Sundqvist, KM, Tarka, M, Wikus, P, Yellin, S, Yoo, J, Young, BA, and Zhang, J

Subjects
astro-ph.CO, hep-ex, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract

Results are presented from a reanalysis of the entire five-tower data set acquired with the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory, with an exposure of 969 kg-days. The analysis window was extended to a recoil energy of 150 keV, and an improved surface-event background-rejection cut was defined to increase the sensitivity of the experiment to the inelastic dark matter (iDM) model. Three dark matter candidates were found between 25 keV and 150 keV. The probability to observe three or more background events in this energy range is 11%. Because of the occurrence of these events, the constraints on the iDM parameter space are slightly less stringent than those from our previous analysis, which used an energy window of 10-100 keV. © 2011 American Physical Society.

Published
2011

12. Results from a Low-Energy Analysis of the CDMS II Germanium Data

Author

Ahmed, Z, Akerib, DS, Arrenberg, S, Bailey, CN, Balakishiyeva, D, Baudis, L, Bauer, DA, Brink, PL, Bruch, T, Bunker, R, Cabrera, B, Caldwell, DO, Cooley, J, do Couto e Silva, E, Cushman, P, Daal, M, DeJongh, F, Di Stefano, P, Dragowsky, MR, Duong, L, Fallows, S, Figueroa-Feliciano, E, Filippini, J, Fox, J, Fritts, M, Golwala, SR, Hall, J, Hennings-Yeomans, R, Hertel, SA, Holmgren, D, Hsu, L, Huber, ME, Kamaev, O, Kiveni, M, Kos, M, Leman, SW, Liu, S, Mahapatra, R, Mandic, V, McCarthy, KA, Mirabolfathi, N, Moore, D, Nelson, H, Ogburn, RW, Phipps, A, Pyle, M, Qiu, X, Ramberg, E, Rau, W, Reisetter, A, Resch, R, Saab, T, Sadoulet, B, Sander, J, Schnee, RW, Seitz, DN, Serfass, B, Sundqvist, KM, Tarka, M, Wikus, P, Yellin, S, Yoo, J, Young, BA, and Zhang, J

Subjects
CDMS Collaboration, astro-ph.CO, hep-ex, Mathematical Sciences, Physical Sciences, Engineering, General Physics
Abstract

We report results from a reanalysis of data from the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory. Data taken between October 2006 and September 2008 using eight germanium detectors are reanalyzed with a lowered, 2 keV recoil-energy threshold, to give increased sensitivity to interactions from weakly interacting massive particles (WIMPs) with masses below ∼10  GeV/c(2). This analysis provides stronger constraints than previous CDMS II results for WIMP masses below 9  GeV/c(2) and excludes parameter space associated with possible low-mass WIMP signals from the DAMA/LIBRA and CoGeNT experiments.

Published
2011

13. Analysis of the low-energy electron-recoil spectrum of the CDMS experiment

Author

Ahmed, Z, Akerib, DS, Arrenberg, S, Bailey, CN, Balakishiyeva, D, Baudis, L, Bauer, DA, Beaty, J, Brink, PL, Bruch, T, Bunker, R, Cabrera, B, Caldwell, DO, Cooley, J, Cushman, P, Dejongh, F, Dragowsky, MR, Duong, L, Figueroa-Feliciano, E, Filippini, J, Fritts, M, Golwala, SR, Grant, DR, Hall, J, Hennings-Yeomans, R, Hertel, S, Holmgren, D, Hsu, L, Huber, ME, Kamaev, O, Kiveni, M, Kos, M, Leman, SW, Mahapatra, R, Mandic, V, Moore, D, McCarthy, KA, Mirabolfathi, N, Nelson, H, Ogburn, RW, Pyle, M, Qiu, X, Ramberg, E, Rau, W, Reisetter, A, Saab, T, Sadoulet, B, Sander, J, Schnee, RW, Seitz, DN, Serfass, B, Sundqvist, KM, Wang, G, Wikus, P, Yellin, S, Yoo, J, and Young, BA

Subjects
astro-ph.GA, astro-ph.CO, Nuclear & Particles Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

We report on the analysis of the low-energy electron-recoil spectrum from the CDMS II experiment using data with an exposure of 443.2 kg-days. The analysis provides details on the observed counting rate and possible background sources in the energy range of 2-8.5 keV. We find no significant excess of a peaked contribution to the total counting rate above the background model, and compare this observation to the recent DAMA results. In the framework of a conversion of a dark matter particle into electromagnetic energy, our 90% confidence level upper limit of 0.246events/kg/day at 3.15 keV is lower than the total rate above background observed by DAMA. In absence of any specific particle physics model to provide the scaling in cross section between NaI and Ge, we assume a Z2 scaling. With this assumption the observed rate in DAMA remains higher than the upper limit in CDMS. Under the conservative assumption that the modulation amplitude is 6% of the total rate we obtain upper limits on the modulation amplitude a factor of ∼2 lower than observed by DAMA, constraining some possible interpretations of this modulation. © 2010 The American Physical Society.

Published
2010

14. Dark Matter Search Results from the CDMS II Experiment

Author

Ahmed, Z., Akerib, D. S., Arrenberg, S., Bailey, C. N., Balakishiyeva, D., Baudis, L., Bauer, D. A., Brink, P. L., Bruch, T., Bunker, R., Cabrera, B., Caldwell, D. O., Cooley, J., Cushman, P., Daal, M., DeJongh, F., Dragowsky, M. R., Duong, L., Fallows, S., Figueroa-Feliciano, E., Filippini, J., Fritts, M., Golwala, S. R., Grant, D. R., Hall, J., Hennings-Yeomans, R., Hertel, S. A., Holmgren, D., Hsu, L., Huber, M. E., Kamaev, O., Kiveni, M., Kos, M., Leman, S. W., Mahapatra, R., Mandic, V., McCarthy, K. A., Mirabolfathi, N., Moore, D., Nelson, H., Ogburn, R. W., Phipps, A., Pyle, M., Qiu, X., Ramberg, E., Rau, W., Reisetter, A., Saab, T., Sadoulet, B., Sander, J., Schnee, R. W., Seitz, D. N., Serfass, B., Sundqvist, K. M., Tarka, M., Wikus, P., Yellin, S., Yoo, J., Young, B. A., and Zhang, J.

Published
2010
Full Text
View/download PDF

15. Search for inelastic dark matter with the CDMS II experiment

Author

CDMS Collaboration, Ahmed, Z, Akerib, D, Arrenberg, S, Bailey, C N, Balakishiyeva, D, Baudis, L, Yoo, J, University of Zurich, and Arrenberg, S

Subjects
530 Physics, 10231 Institute for Computational Science, 10192 Physics Institute, 3106 Nuclear and High Energy Physics, 3101 Physics and Astronomy (miscellaneous)
Published
2011

16. Results from a low-energy analysis of the CDMS II Germanium data

Author

CDMS Collaboration, Ahmed, Z, Akerib, D S, Arrenberg, S, Bailey, C N, Balakishiyeva, D, Baudis, L, Yoo, J, and University of Zurich

Subjects
530 Physics, 10231 Institute for Computational Science, 10192 Physics Institute, 3100 General Physics and Astronomy
Published
2011

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

Author

Agnese, R., primary, Ahmed, Z., additional, Anderson, A. J., additional, Arrenberg, S., additional, Balakishiyeva, D., additional, Basu Thakur, R., additional, Bauer, D. A., additional, Borgland, A., additional, Brandt, D., additional, Brink, P. L., additional, Bruch, T., additional, Bunker, R., additional, Cabrera, B., additional, Caldwell, D. O., additional, Cerdeno, D. G., additional, Chagani, H., additional, Cooley, J., additional, Cornell, B., additional, Crewdson, C. H., additional, Cushman, P., additional, Daal, M., additional, Dejongh, F., additional, Di Stefano, P. C. F., additional, do Couto e Silva, E., additional, Doughty, T., additional, Esteban, L., additional, Fallows, S., additional, Figueroa-Feliciano, E., additional, Filippini, J., additional, Fox, J., additional, Fritts, M., additional, Godfrey, G. L., additional, Golwala, S. R., additional, Hall, J., additional, Harris, R. H., additional, Hertel, S. A., additional, Hofer, T., additional, Holmgren, D., additional, Hsu, L., additional, Huber, M. E., additional, Jastram, A., additional, Kamaev, O., additional, Kara, B., additional, Kelsey, M. H., additional, Kennedy, A., additional, Kim, P., additional, Kiveni, M., additional, Koch, K., additional, Kos, M., additional, Leman, S. W., additional, Lopez-Asamar, E., additional, Mahapatra, R., additional, Mandic, V., additional, Martinez, C., additional, McCarthy, K. A., additional, Mirabolfathi, N., additional, Moffatt, R. A., additional, Moore, D. C., additional, Nadeau, P., additional, Nelson, R. H., additional, Page, K., additional, Partridge, R., additional, Pepin, M., additional, Phipps, A., additional, Prasad, K., additional, Pyle, M., additional, Qiu, H., additional, Rau, W., additional, Redl, P., additional, Reisetter, A., additional, Ricci, Y., additional, Saab, T., additional, Sadoulet, B., additional, Sander, J., additional, Schneck, K., additional, Schnee, R. W., additional, Scorza, S., additional, Serfass, B., additional, Shank, B., additional, Speller, D., additional, Sundqvist, K. M., additional, Villano, A. N., additional, Welliver, B., additional, Wright, D. H., additional, Yellin, S., additional, Yen, J. J., additional, Yoo, J., additional, Young, B. A., additional, and Zhang, J., additional

Published
2013
Full Text
View/download PDF

21. SuperCDMS status from Soudan and plans for SNOLab

Author

Sander, J., primary, Ahmed, Z., additional, Anderson, A. J., additional, Arrenberg, S., additional, Balakishiyeva, D., additional, Thakur, R. B., additional, Bauer, D. A., additional, Brandt, D., additional, Brink, P. L., additional, Bunker, R., additional, Cabrera, B., additional, Caldwell, D. O., additional, Cerdeno, D. G., additional, Chagani, H., additional, Cooley, J., additional, Cornell, B., additional, Crewdson, C. H., additional, Cushman, P., additional, Daal, M., additional, Di Stefano, P. C. F., additional, Silva, E. Do Couto E, additional, Doughty, T., additional, Esteban, L., additional, Fallows, S., additional, Figueroa-Feliciano, E., additional, Fox, J., additional, Fritts, M., additional, Godfrey, G. L., additional, Golwala, S. R., additional, Hall, J., additional, Hasi, J., additional, Hertel, S. A., additional, Hofer, T., additional, Holmgren, D., additional, Hsu, L., additional, Huber, M. E., additional, Jastram, A., additional, Kamaev, O., additional, Kara, B., additional, Kelsey, M. H., additional, Kim, P., additional, Kiveni, M., additional, Koch, K., additional, Kos, M., additional, Leman, S. W., additional, Liu, S., additional, Loer, B., additional, Mahapatra, R., additional, Mandic, V., additional, Martinez, C., additional, Mccarthy, K. A., additional, Mirabolfathi, N., additional, Moffat, R., additional, Moore, D. C., additional, Nadeau, P., additional, Nelson, R., additional, Page, K., additional, Partridge, R., additional, Pepin, M., additional, Phipps, A., additional, Prasad, K., additional, Pyle, M., additional, Qiu, H., additional, Qiu, X., additional, Radpour, R., additional, Rau, W., additional, Reisetter, A., additional, Resch, R. W., additional, Ricci, Y., additional, Saab, T., additional, Sadoulet, B., additional, Schnee, R. W., additional, Scorza, S., additional, Serfass, B., additional, Shank, B., additional, Shneck, K., additional, Speller, D., additional, Sundqvist, K. M., additional, Villano, A. N., additional, Welliver, B., additional, Yellin, S., additional, Yen, J., additional, Yoo, J., additional, Young, B. A., additional, and Zhang, J., additional

Published
2013
Full Text
View/download PDF

22. Search for Axions with the CDMS Experiment

Author

Ahmed, Z., primary, Akerib, D. S., additional, Arrenberg, S., additional, Bailey, C. N., additional, Balakishiyeva, D., additional, Baudis, L., additional, Bauer, D. A., additional, Beaty, J., additional, Brink, P. L., additional, Bruch, T., additional, Bunker, R., additional, Cabrera, B., additional, Caldwell, D. O., additional, Cooley, J., additional, Cushman, P., additional, DeJongh, F., additional, Dragowsky, M. R., additional, Duong, L., additional, Figueroa-Feliciano, E., additional, Filippini, J., additional, Fritts, M., additional, Golwala, S. R., additional, Grant, D. R., additional, Hall, J., additional, Hennings-Yeomans, R., additional, Hertel, S., additional, Holmgren, D., additional, Hsu, L., additional, Huber, M. E., additional, Kamaev, O., additional, Kiveni, M., additional, Kos, M., additional, Leman, S. W., additional, Mahapatra, R., additional, Mandic, V., additional, Moore, D., additional, McCarthy, K. A., additional, Mirabolfathi, N., additional, Nelson, H., additional, Ogburn, R. W., additional, Pyle, M., additional, Qiu, X., additional, Ramberg, E., additional, Rau, W., additional, Reisetter, A., additional, Saab, T., additional, Sadoulet, B., additional, Sander, J., additional, Schnee, R. W., additional, Seitz, D. N., additional, Serfass, B., additional, Sundqvist, K. M., additional, Tarka, M., additional, Wang, G., additional, Yellin, S., additional, Yoo, J., additional, and Young, B. A., additional

Published
2009
Full Text
View/download PDF

23. Search for Weakly Interacting Massive Particles with the First Five-Tower Data from the Cryogenic Dark Matter Search at the Soudan Underground Laboratory

Author

Ahmed, Z., primary, Akerib, D. S., additional, Arrenberg, S., additional, Attisha, M. J., additional, Bailey, C. N., additional, Baudis, L., additional, Bauer, D. A., additional, Beaty, J., additional, Brink, P. L., additional, Bruch, T., additional, Bunker, R., additional, Burke, S., additional, Cabrera, B., additional, Caldwell, D. O., additional, Cooley, J., additional, Cushman, P., additional, DeJongh, F., additional, Dragowsky, M. R., additional, Duong, L., additional, Emes, J., additional, Figueroa-Feliciano, E., additional, Filippini, J., additional, Fritts, M., additional, Gaitskell, R. J., additional, Golwala, S. R., additional, Grant, D. R., additional, Hall, J., additional, Hennings-Yeomans, R., additional, Hertel, S., additional, Holmgren, D., additional, Huber, M. E., additional, Mahapatra, R., additional, Mandic, V., additional, McCarthy, K. A., additional, Mirabolfathi, N., additional, Nelson, H., additional, Novak, L., additional, Ogburn, R. W., additional, Pyle, M., additional, Qiu, X., additional, Ramberg, E., additional, Rau, W., additional, Reisetter, A., additional, Saab, T., additional, Sadoulet, B., additional, Sander, J., additional, Schmitt, R., additional, Schnee, R. W., additional, Seitz, D. N., additional, Serfass, B., additional, Sirois, A., additional, Sundqvist, K. M., additional, Tarka, M., additional, Tomada, A., additional, Wang, G., additional, Yellin, S., additional, Yoo, J., additional, and Young, B. A., additional

Published
2009
Full Text
View/download PDF

24. SuperCDMS Detector Readout Cryogenic Hardware

Author

Seitz, D. N., primary, Ahmed, Z., additional, Akerib, D. S., additional, Arrenberg, S., additional, Bailey, C. N., additional, Balakishiyeva, D., additional, Baudis, L., additional, Bauer, D. A., additional, Beaty, J., additional, Brink, P. L., additional, Bruch, T., additional, Bunker, R., additional, Cabrera, B., additional, Caldwell, D. O., additional, Clark, K., additional, Cooley, J., additional, Cushman, P., additional, DeJongh, F., additional, Dragowsky, M. R., additional, Duong, L., additional, Figueroa-Feliciano, E., additional, Filippini, J., additional, Fritts, M., additional, Golwala, S. R., additional, Grant, D. R., additional, Hall, J., additional, Hennings-Yeomans, R., additional, Hertel, S., additional, Homgren, D., additional, Hsu, L., additional, Huber, M. E., additional, Kamaev, O., additional, Kiveni, M., additional, Kos, M., additional, Leman, S. W., additional, Mahapatra, R., additional, Mandic, V., additional, Moore, D., additional, McCarthy, K. A., additional, Mirabolfathi, N., additional, Nelson, H., additional, Novak, L., additional, Ogburn, R. W., additional, Pyle, M., additional, Qiu, X., additional, Ramberg, E., additional, Rau, W., additional, Reisetter, A., additional, Saab, T., additional, Sadoulet, B., additional, Sander, J., additional, Schnee, R. W., additional, Serfass, B., additional, Sundqvist, K. M., additional, Tomada, A., additional, Wang, G., additional, Wikus, P., additional, Yellin, S., additional, Yoo, J., additional, Young, B. A., additional, Young, Betty, additional, Cabrera, Blas, additional, and Miller, Aaron, additional

Published
2009
Full Text
View/download PDF

25. Bulk and Surface Charge Collection: CDMS Detector Performance and Design Implications

Author

Bailey, C. N., primary, Ahmed, Z., additional, Akerib, D. S., additional, Arrenberg, S., additional, Balakishiyeva, D., additional, Baudis, L., additional, Bauer, D. A., additional, Beaty, J., additional, Brink, P. L., additional, Bruch, T., additional, Bunker, R., additional, Cabrera, B., additional, Caldwell, D. O., additional, Clark, K., additional, Cooley, J., additional, Cushman, P., additional, DeJongh, F., additional, Dragowsky, M. R., additional, Duong, L., additional, Figueroa-Feliciano, E., additional, Filippini, J., additional, Fritts, M., additional, Golwala, S. R., additional, Grant, D. R., additional, Hall, J., additional, Hennings-Yeomans, R., additional, Hertel, S., additional, Hojem, A., additional, Homgren, D., additional, Hsu, L., additional, Huber, M. E., additional, Kamaev, O., additional, Kiveni, M., additional, Kos, M., additional, Leman, S. W., additional, Mahapatra, R., additional, Mandic, V., additional, Moore, D., additional, McCarthy, K. A., additional, Mirabolfathi, N., additional, Nelson, H., additional, Ogburn, R. W., additional, Pyle, M., additional, Qiu, X., additional, Ramberg, E., additional, Rau, W., additional, Reisetter, A., additional, Saab, T., additional, Sadoulet, B., additional, Sander, J., additional, Schnee, R. W., additional, Seitz, D. N., additional, Serfass, B., additional, Sundqvist, K. M., additional, Tomada, A., additional, Wang, G., additional, Whilden, M., additional, Yellin, S., additional, Yoo, J., additional, Young, B. A., additional, Young, Betty, additional, Cabrera, Blas, additional, and Miller, Aaron, additional

Published
2009
Full Text
View/download PDF

26. The Cryogenic Dark Matter Search (CDMS) experiment: Results, status and perspective

Author

Mirabolfathi, N., primary, Ahmed, Z., additional, Akerib, D. S., additional, Arrenberg, S., additional, Bailey, C. N., additional, Balakishiyeva, D., additional, Baudis, L., additional, Bauer, D. A, additional, Beaty, J., additional, Brink, P. L., additional, Bruch, T., additional, Bunker, R., additional, Cabrera, B., additional, Caldwell, D. O., additional, Clark, K., additional, Cooley, J., additional, Cushman, P., additional, DeJongh, F., additional, Dragowski, M. R., additional, Duong, L., additional, Figueroa-Feliciano, E., additional, Filippini, J., additional, Fritts, M., additional, Golwala, S. R., additional, Grant, D. R., additional, Hall, J., additional, Hennins-Yeomans, R., additional, Hertel, S., additional, Homgren, D., additional, Hsu, L., additional, Huber, M. E., additional, Kamaev, O., additional, Kiveni, M., additional, Kos, M., additional, Leman, S. W., additional, Mahapatra, R., additional, Mandic, V., additional, Moore, D., additional, McCarthy, K. A., additional, Nelson, H., additional, Ogburn, R. W., additional, Pyle, M., additional, Qiu, X., additional, Ramberg, E., additional, Rau, W., additional, Reisetter, A., additional, Saab, T., additional, Sadoulet, B., additional, Sanders, J., additional, Schnee, R. W., additional, Seitz, D. N., additional, Serfass, B., additional, Sundqvist, K. M., additional, Wang, G., additional, Yellin, S., additional, Yoo, J., additional, Young, B. A., additional, Young, Betty, additional, Cabrera, Blas, additional, and Miller, Aaron, additional

Published
2009
Full Text
View/download PDF

27. SuperCDMS Detector Readout Cryogenic Hardware.

Author

Seitz, D. N., Ahmed, Z., Akerib, D. S., Arrenberg, S., Bailey, C. N., Balakishiyeva, D., Baudis, L., Bauer, D. A., Beaty, J., Brink, P. L., Bruch, T., Bunker, R., Cabrera, B., Caldwell, D. O., Clark, K., Cooley, J., Cushman, P., DeJongh, F., Dragowsky, M. R., and Duong, L.

Subjects
DETECTORS, PHYSICS instruments, LOW temperature engineering, GERMANIUM crystals, CAPACITANCE meters
Abstract

SuperCDMS employs 1-inch thick germanium crystals operated below 50mK in a dilution cryostat. Each detector produces ionization and phonon signals. Ionization signals are amplified by JFETs operating at 150K within an assembly mounted on the 4K cryostat stage. These high impedance signals are carried to the FETs by superconducting “vacuum coaxes” which minimize thermal conductivity, stray capacitance, and microphonics. Transition edge sensors produce low-impedance phonon signals, amplified by SQUID arrays mounted on a 600mK stage. Detectors are mounted in a six-sided wiring configuration called a “tower”, which carries signals from 40mK to 4K. A flex circuit 3 meters in length carries amplified signals for each detector from 4K to a vacuum bulkhead. We describe the methods used to support the detectors, wiring and amplifier elements at various thermal stages, minimizing electrical noise and thermal loads. [ABSTRACT FROM AUTHOR]

Published
2009
Full Text
View/download PDF

28. The Cryogenic Dark Matter Search (CDMS) experiment: Results, status and perspective.

Author

Mirabolfathi, N., Ahmed, Z., Akerib, D. S., Arrenberg, S., Bailey, C. N., Balakishiyeva, D., Baudis, L., Bauer, D. A, Beaty, J., Brink, P. L., Bruch, T., Bunker, R., Cabrera, B., Caldwell, D. O., Clark, K., Cooley, J., Cushman, P., DeJongh, F., Dragowski, M. R., and Duong, L.

Subjects
DARK matter, PHONONS, IONIZATION (Atomic physics), DETECTORS, METAPHYSICAL cosmology
Abstract

The Cryogenic Dark Matter Search experiment (CDMS) is using Phonon+Ionization detectors to search for Dark Matter in the form of Weakly Interactive Massive Particles (WIMPs). We report on new results from the operation of CDMS five “towers” at Soudan underground laboratory. With new and more massive detectors, SuperCDMS project has been started since March 2009. We report on the current status of SuperCDMS and its perspective. [ABSTRACT FROM AUTHOR]

Published
2009
Full Text
View/download PDF

29. Bulk and Surface Charge Collection: CDMS Detector Performance and Design Implications.

Author

Bailey, C. N., Ahmed, Z., Akerib, D. S., Arrenberg, S., Balakishiyeva, D., Baudis, L., Bauer, D. A., Beaty, J., Brink, P. L., Bruch, T., Bunker, R., Cabrera, B., Caldwell, D. O., Clark, K., Cooley, J., Cushman, P., DeJongh, F., Dragowsky, M. R., Duong, L., and Figueroa-Feliciano, E.

Subjects
DARK matter, GERMANIUM diodes, PHONONS, IONIZATION (Atomic physics), TUNGSTEN, WEAKLY interacting massive particle detectors
Abstract

The Cryogenic Dark Matter Search (CDMS) searches for Weakly Interacting Massive Particles (WIMPs) with cryogenic germanium particle detectors. These detectors discriminate between nuclear-recoil candidate and electron-recoil background events by collecting both phonon and ionization energy from interactions in the crystal. Incomplete ionization collection results in the largest background in the CDMS detectors as this causes electron-recoil background interactions to appear as false candidate events. Two primary causes of incomplete ionization collection are suface and bulk charge trapping. Recent work has been focused on reducing surface trapping through the modification of fabrication methods for future detectors. Analyzing data taken with test devices shows that hydrogen passivation of the amorphous silicon blocking layer does not reduce the effects of surface trapping. Other data shows that the iron-ion implantation used to lower the critical temperature of the tungsten transition-edge sensors increases surface trapping, causing a degradation of the ionization collection. Using selective implantation on future detectors may improve ionization collection for events near the phonon side detector surface. Bulk trapping is minimized by neutralizing ionized lattice impurities. Detector investigations at testing facilities and at the experimental site in Soudan, MN have provided methods to optimize the neutralization process and monitor running conditions to maintain maximal ionization collection. [ABSTRACT FROM AUTHOR]

Published
2009
Full Text
View/download PDF

30. Search for annual modulation in low-energy CDMS-II data

Author

Ahmed, Z., Akerib, D. S., Anderson, A. J., Arrenberg, S., Bailey, C. N., Balakishiyeva, D., Baudis, L., Bauer, D. A., Brink, P. L., Bruch, T., Bunker, R., Cabrera, B., Caldwell, D. O., Cooley, J., Cushman, P., Daal, M., Dejongh, F., Di Stefano, P. C. F., Dragowsky, M. R., Fallows, S., Figueroa-Feliciano, E., Filippini, J., Fox, J., Fritts, M., Golwala, S. R., Hall, J., Hertel, S. A., Hofer, T., Donald Holmgren, Hsu, L., Huber, M. E., Kamaev, O., Kiveni, M., Kos, M., Leman, S. W., Liu, S., Mahapatra, R., Mandic, V., Mccarthy, K. A., Mirabolfathi, N., Moore, D. C., Nelson, H., Ogburn, R. W., Phipps, A., Prasad, K., Pyle, M., Qiu, X., Rau, W., Reisetter, A., Ricci, Y., Saab, T., Sadoulet, B., Sander, J., Schnee, R. W., Seitz, D., Serfass, B., Speller, D., Sundqvist, K. M., Tarka, M., Thakur, R. B., Villano, A. N., Welliver, B., Yellin, S., Yoo, J., Young, B. A., and Zhang, J.

31. Combined limits on WIMPs from the CDMS and EDELWEISS experiments

Author

Jeffrey P. Filippini, S. Henry, K. Eitel, Tarek Saab, P. Pari, M. R. Dragowsky, S. Hervé, E. Olivieri, N. Mirabolfathi, Steven W. Leman, P. Cushman, S. V. Rozov, M. A. Verdier, L. Bergé, R. W. Schnee, Martin E. Huber, Kevin A. McCarthy, D. O. Caldwell, F. DeJongh, A. S. Torrento-Coello, J. Hall, Enectali Figueroa-Feliciano, S. Arrenberg, Laura Baudis, D. Balakishiyeva, S. Fallows, Alain Benoit, P. Coulter, Y. Ricci, P. Wikus, G. Chardin, X. Defay, S. J. Yellin, R. Bunker, J. Domange, Miguel Daal, O. Kamaev, D. A. Bauer, B. Paul, A. Broniatowski, H. N. Nelson, A. Reisetter, Blas Cabrera, Cristián Martínez, S. Liu, P. L. Brink, H. Kluck, B. Censier, Z. Ahmed, W. Rau, M. Kos, V. A. Kudryavtsev, S. Scorza, J. Gascon, S. A. Hertel, G. A. Cox, Bernard Sadoulet, D. Filosofov, Y. Dolgorouki, P. Di Stefano, T. Bruch, Bruno Serfass, J. Gironnet, D. N. Seitz, P. Nadeau, E. Armengaud, R. J. Walker, L. Pattavina, R. Hennings-Yeomans, H. Kraus, M. Tarka, Max Robinson, C. Augier, M. Kiveni, M. Gros, P. Loaiza, F. Charlieux, X. Qiu, A. Phipps, R. W. Ogburn, Sunil Golwala, X. F. Navick, C. N. Bailey, M. De Jesus, D. S. Akerib, J. Fox, J. Blümer, E. Yakushev, A. Juillard, M. Pyle, L. Hsu, Jie Zhang, V. Kozlov, Jodi Cooley, Matthew Fritts, Vuk Mandic, B. Schmidt, V.B. Brudanin, M. Chapellier, L. Vagneron, N. Fourches, S. Marnieros, J. Yoo, David Moore, R. Mahapatra, Donald J. Holmgren, J. Sander, C. Nones, Betty A. Young, K. M. Sundqvist, G. Gerbier, V. Sanglard, S. Semikh, L. Dumoulin, Ahmed, Z, Akerib, D, Armengaud, E, Arrenberg, S, Augier, C, Bailey, C, Balakishiyeva, D, Baudis, L, Bauer, D, Benoit, A, Berge, L, Bluemer, J, Brink, P, Broniatowski, A, Bruch, T, Brudanin, V, Bunker, R, Cabrera, B, Caldwell, D, Censier, B, Chapellier, M, Chardin, G, Charlieux, F, Cooley, J, Coulter, P, Cox, G, Cushman, P, Daal, M, Defay, X, De Jesus, M, Dejongh, F, Di Stefano, P, Dolgorouki, Y, Domange, J, Dumoulin, L, Dragowsky, M, Eitel, K, Fallows, S, Figueroa Feliciano, E, Filippini, J, Filosofov, D, Fourches, N, Fox, J, Fritts, M, Gascon, J, Gerbier, G, Gironnet, J, Golwala, S, Gros, M, Hall, J, Hennings Yeomans, R, Henry, S, Hertel, S, Herve, S, Holmgren, D, Hsu, L, Huber, M, Juillard, A, Kamaev, O, Kiveni, M, Kluck, H, Kos, M, Kozlov, V, Kraus, H, Kudryavtsev, V, Leman, S, Liu, S, Loaiza, P, Mahapatra, R, Mandic, V, Marnieros, S, Martinez, C, Mccarthy, K, Mirabolfathi, N, Moore, D, Nadeau, P, Navick, X, Nelson, H, Nones, C, Ogburn, R, Olivieri, E, Pari, P, Pattavina, L, Paul, B, Phipps, A, Pyle, M, Qiu, X, Rau, W, Reisetter, A, Ricci, Y, Robinson, M, Rozov, S, Saab, T, Sadoulet, B, Sander, J, Sanglard, V, Schmidt, B, Schnee, R, Scorza, S, Seitz, D, Semikh, S, Serfass, B, Sundqvist, K, Tarka, M, Torrento Coello, A, Vagneron, L, Verdier, M, Walker, R, Wikus, P, Yakushev, E, Yellin, S, Yoo, J, Young, B, Zhang, J, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Souterrain de Modane (LSM - UMR 6417), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Rayonnement Matière de Saclay (IRAMIS), EDELWEISS, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
Nuclear and High Energy Physics, Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Dark Matter, bolometers, germanium detectors, Dark matter, Massive particle, FOS: Physical sciences, Elementary particle, Astrophysics::Cosmology and Extragalactic Astrophysics, EDELWEISS, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), WIMP, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Physics, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Fermion, Baryon, Weakly interacting massive particles, High Energy Physics::Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The CDMS and EDELWEISS collaborations have combined the results of their direct searches for dark matter using cryogenic germanium detectors. The total data set represents 614 kg.d equivalent exposure. A straightforward method of combination was chosen for its simplicity before data were exchanged between experiments. The results are interpreted in terms of limits on spin-independent WIMP-nucleon cross-section. For a WIMP mass of 90 GeV/c^2, where this analysis is most sensitive, a cross-section of 3.3 x 10^{-44} cm^2 is excluded at 90% CL. At higher WIMP masses, the combination improves the individual limits, by a factor 1.6 above 700 GeV/c^2. Alternative methods of combining the data provide stronger constraints for some ranges of WIMP masses and weaker constraints for others., Events, efficiencies, and main limit are available in text format (see README.txt)

Published
2011
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results