Professional Education


  • Bachelor of Arts, University of California Berkeley (2008)
  • Doctor of Philosophy, University of California Berkeley (2016)

Stanford Advisors


All Publications


  • New Results from the Search for Low-Mass Weakly Interacting Massive Particles with the CDMS Low Ionization Threshold Experiment PHYSICAL REVIEW LETTERS Agnese, R., Anderson, A. J., Aramaki, T., Asai, M., Baker, W., Balakishiyeva, D., Barker, D., Thakur, R. B., Bauer, D. A., Billard, J., Borgland, A., BOWLES, M. A., Brink, P. L., Bunker, R., Cabrera, B., Caldwell, D. O., CALKINS, R., Cerdeno, D. G., Chagani, H., Chen, Y., Cooley, J., Cornell, B., Cushman, P., Daal, M., Di Stefano, P. C., Doughty, T., Esteban, L., Fallows, S., Figueroa-Feliciano, E., GHAITH, M., Godfrey, G. L., Golwala, S. R., Hall, J., Harris, H. R., Hofer, T., Holmgren, D., Hsu, L., Huber, M. E., Jardin, D., JASTRAM, A., Kamaev, O., Kara, B., Kelsey, M. H., Kennedy, A., Leder, A., Loer, B., Lopez Asamar, E., Lukens, P., Mahapatra, R., Mandic, V., Mast, N., Mirabolfathi, N., MOFFATT, R. A., Mendoza, J. D., Oser, S. M., Page, K., PAGE, W. A., Partridge, R., Pepin, M., Phipps, A., Prasad, K., Pyle, M., Qiu, H., Rau, W., Redl, P., Reisetter, A., Ricci, Y., Roberts, A., Rogers, H. E., Saab, T., Sadoulet, B., Sander, J., Schneck, K., Schnee, R. W., Scorza, S., Serfass, B., Shank, B., Speller, D., Toback, D., Underwood, R., Upadhyayula, S., Villano, A. N., Welliver, B., Wilson, J. S., Wright, D. H., Yellin, S., YEN, J. J., Young, B. A., Zhang, J. 2016; 116 (7)

    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}.

    View details for DOI 10.1103/PhysRevLett.116.071301

    View details for Web of Science ID 000370250300004

    View details for PubMedID 26943526

  • Imaging the oblique propagation of electrons in germanium crystals at low temperature and low electric field APPLIED PHYSICS LETTERS Moffatt, R. A., Cabrera, B., Corcoran, B. M., Kreikebaum, J. M., Redl, P., Shank, B., YEN, J. J., Young, B. A., Brink, P. L., Cherry, M., Tomada, A., Phipps, A., Sadoulet, B., Sundqvist, K. M. 2016; 108 (2)

    View details for DOI 10.1063/1.4939753

    View details for Web of Science ID 000370258400024

  • Improved WIMP-search reach of the CDMS II germanium data PHYSICAL REVIEW D Agnese, R., Anderson, A. J., Asai, M., Balakishiyeva, D., Barker, D., Thakur, R. B., Bauer, D. A., Billard, J., Borgland, A., BOWLES, M. A., Brandt, D., Brink, P. L., Bunker, R., Cabrera, B., Caldwell, D. O., CALKINS, R., Cerdeno, D. G., Chagani, H., Chen, Y., Cooley, J., Cornell, B., Crewdson, C. H., Cushman, P., Daal, M., Di Stefano, P. C., Doughty, T., Esteban, L., Fallows, S., Figueroa-Feliciano, E., Godfrey, G. L., Golwala, S. R., Hall, J., Harris, H. R., Hertel, S. A., Hofer, T., Holmgren, D., Hsu, L., Huber, M. E., Jardin, D., JASTRAM, A., Kamaev, O., Kara, B., Kelsey, M. H., Kennedy, A., Kiveni, M., KOCH, K., Leder, A., Loer, B., Lopez Asamar, E., Lukens, P., Mahapatra, R., Mandic, V., McCarthy, K. A., Mirabolfathi, N., MOFFATT, R. A., Oser, S. M., Page, K., PAGE, W. A., Partridge, R., Pepin, M., Phipps, A., Prasad, K., Pyle, M., Qiu, H., Rau, W., Redl, P., Reisetter, A., Ricci, Y., Rogers, H. E., Saab, T., Sadoulet, B., Sander, J., Schneck, K., Schnee, R. W., Scorza, S., Serfass, B., Shank, B., Speller, D., Toback, D., Upadhyayula, S., Villano, A. N., Welliver, B., Wilson, J. S., Wright, D. H., Yang, X., Yellin, S., YEN, J. J., Young, B. A., Zhang, J. 2015; 92 (7)
  • Dark matter effective field theory scattering in direct detection experiments PHYSICAL REVIEW D Schneck, K., Cabrera, B., Cerdeno, D. G., Mandic, V., Rogers, H. E., Agnese, R., Anderson, A. J., Asai, M., Balakishiyeva, D., Barker, D., Thakur, R. B., Bauer, D. A., Billard, J., Borgland, A., Brandt, D., Brink, P. L., Bunker, R., Caldwell, D. O., CALKINS, R., Chagani, H., Chen, Y., Cooley, J., Cornell, B., Crewdson, C. H., Cushman, P., Daal, M., Di Stefano, P. C., Doughty, T., Esteban, L., Fallows, S., Figueroa-Feliciano, E., Godfrey, G. L., Golwala, S. R., Hall, J., Harris, H. R., Hofer, T., Holmgren, D., Hsu, L., Huber, M. E., Jardin, D. M., JASTRAM, A., Kamaev, O., Kara, B., Kelsey, M. H., Kennedy, A., Leder, A., Loer, B., Lopez Asamar, E., Lukens, P., Mahapatra, R., McCarthy, K. A., Mirabolfathi, N., MOFFATT, R. A., Mendoza, J. D., Oser, S. M., Page, K., PAGE, W. A., Partridge, R., Pepin, M., Phipps, A., Prasad, K., Pyle, M., Qiu, H., Rau, W., Redl, P., Reisetter, A., Ricci, Y., Roberts, A., Saab, T., Sadoulet, B., Sander, J., Schnee, R. W., Scorza, S., Serfass, B., Shank, B., Speller, D., Toback, D., Upadhyayula, S., Villano, A. N., Welliver, B., Wilson, J. S., Wright, D. H., Yang, X., Yellin, S., YEN, J. J., Young, B. A., Zhang, J. 2015; 91 (9)
  • Maximum likelihood analysis of low energy CDMS II germanium data PHYSICAL REVIEW D Agnese, R., Anderson, A. J., Balakishiyeva, D., Thakur, R. B., Bauer, D. A., Billard, J., Borgland, A., BOWLES, M. A., Brandt, D., Brink, P. L., Bunker, R., Cabrera, B., Caldwell, D. O., Cerdeno, D. G., Chagani, H., Chen, Y., Cooley, J., Cornell, B., Crewdson, C. H., Cushman, P., Daal, M., Di Stefano, P. C., Doughty, T., Esteban, L., Fallows, S., Figueroa-Feliciano, E., Fritts, M., Godfrey, G. L., Golwala, S. R., Graham, M., Hall, J., Harris, H. R., Hertel, S. A., Hofer, T., Holmgren, D., Hsu, L., Huber, M. E., JASTRAM, A., Kamaev, O., Kara, B., Kelsey, M. H., Kennedy, A., Kiveni, M., KOCH, K., Leder, A., Loer, B., Lopez Asamar, E., Mahapatra, R., Mandic, V., Martinez, C., McCarthy, K. A., Mirabolfathi, N., MOFFATT, R. A., Moore, D. C., Nelson, R. H., Oser, S. M., Page, K., PAGE, W. A., Partridge, R., Pepin, M., Phipps, A., Prasad, K., Pyle, M., Qiu, H., Rau, W., Redl, P., Reisetter, A., Ricci, Y., Rogers, H. E., Saab, T., Sadoulet, B., Sander, J., Schneck, K., Schnee, R. W., Scorza, S., Serfass, B., Shank, B., Speller, D., Upadhyayula, S., Villano, A. N., Welliver, B., Wright, D. H., Yellin, S., YEN, J. J., Young, B. A., Zhang, J. 2015; 91 (5)
  • First Direct Limits on Lightly Ionizing Particles with Electric Charge Less than e/6 PHYSICAL REVIEW LETTERS Agnese, R., Anderson, A. J., Balakishiyeva, D., Thakur, R. B., Bauer, D. A., Billard, J., Borgland, A., BOWLES, M. A., Brandt, D., Brink, P. L., Bunker, R., Cabrera, B., Caldwell, D. O., Cerdeno, D. G., Chagani, H., Chen, Y., Cooley, J., Cornell, B., Crewdson, C. H., Cushman, P., Daal, M., Di Stefano, P. C., Doughty, T., Esteban, L., Fallows, S., Figueroa-Feliciano, E., Godfrey, G. L., Golwala, S. R., Hall, J., Harris, H. R., Hertel, S. A., Hofer, T., Holmgren, D., Hsu, L., Huber, M. E., JASTRAM, A., Kamaev, O., Kara, B., Kelsey, M. H., Kennedy, A., Kiveni, M., KOCH, K., Leder, A., Loer, B., Lopez Asamar, E., Mahapatra, R., Mandic, V., Martinez, C., McCarthy, K. A., Mirabolfathi, N., MOFFATT, R. A., Moore, D. C., Nelson, H., Nelson, R. H., Ogburn, R. W., Page, K., Page, A., Partridge, R., Pepin, M., Phipps, A., Prasad, K., Pyle, M., Qiu, H., Rau, W., Redl, P., Reisetter, A., Ricci, Y., Rogers, H. E., Saab, T., Sadoulet, B., Sander, J., Schneck, K., Schnee, R. W., Scorza, S., Serfass, B., Shank, B., Speller, D., Upadhyayula, S., Villano, A. N., Welliver, B., Wright, D. H., Yellin, S., YEN, J. J., Young, B. A., Zhang, J. 2015; 114 (11)

    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.

    View details for DOI 10.1103/PhysRevLett.114.111302

    View details for Web of Science ID 000352192500004

    View details for PubMedID 25839256

  • Search for Low-Mass Weakly Interacting Massive Particles with SuperCDMS PHYSICAL REVIEW LETTERS Agnese, R., Anderson, A. J., Asai, M., Balakishiyeva, D., Thakur, R. B., Bauer, D. A., Beaty, J., Billard, J., Borgland, A., BOWLES, M. A., Brandt, D., Brink, P. L., Bunker, R., Cabrera, B., Caldwell, D. O., Cerdeno, D. G., Chagani, H., Chen, Y., Cherry, M., Cooley, J., Cornell, B., Crewdson, C. H., Cushman, P., Daal, M., Devaney, D., Di Stefano, P. C., Silva, E. d., Doughty, T., Esteban, L., Fallows, S., Figueroa-Feliciano, E., Godfrey, G. L., Golwala, S. R., Hall, J., Hansen, S., Harris, H. R., Hertel, S. A., Hines, B. A., Hofer, T., Holmgren, D., Hsu, L., Huber, M. E., JASTRAM, A., Kamaev, O., Kara, B., Kelsey, M. H., Kenany, S., Kennedy, A., Kiveni, M., KOCH, K., Leder, A., Loer, B., Asamar, E. L., Mahapatra, R., Mandic, V., Martinez, C., McCarthy, K. A., Mirabolfathi, N., MOFFATT, R. A., Nelson, R. H., 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, R. W., Ricci, Y., RUSCHMAN, M., Saab, T., Sadoulet, B., Sander, J., Schmitt, R. L., Schneck, K., Schnee, R. W., Scorza, S., Seitz, D. N., Serfass, B., Shank, B., Speller, D., Tomada, A., Upadhyayula, S., Villano, A. N., Welliver, B., Wright, D. H., Yellin, S., YEN, J. J., Young, B. A., Zhang, J. 2014; 112 (24)
  • Search for Low-Mass Weakly Interacting Massive Particles Using Voltage-Assisted Calorimetric Ionization Detection in the SuperCDMS Experiment PHYSICAL REVIEW LETTERS Agnese, R., Anderson, A. J., Asai, M., Balakishiyeva, D., Thakur, R. B., Bauer, D. A., Billard, J., Borgland, A., BOWLES, M. A., Brandt, D., Brink, P. L., Bunker, R., Cabrera, B., Caldwell, D. O., Cerdeno, D. G., Chagani, H., Cooley, J., Cornell, B., Crewdson, C. H., Cushman, P., Daal, M., Di Stefano, P. C., Doughty, T., Esteban, L., Fallows, S., Figueroa-Feliciano, E., Godfrey, G. L., Golwala, S. R., Hall, J., Harris, H. R., Hertel, S. A., Hofer, T., Holmgren, D., Hsu, L., Huber, M. E., JASTRAM, A., Kamaev, O., Kara, B., Kelsey, M. H., Kennedy, A., Kiveni, M., KOCH, K., Loer, B., 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., Villano, A. N., Welliver, B., Wright, D. H., Yellin, S., YEN, J. J., Young, B. A., Zhang, J. 2014; 112 (4)
  • Silicon Detector Dark Matter Results from the Final Exposure of CDMS II PHYSICAL REVIEW LETTERS Agnese, R., Ahmed, Z., Anderson, A. J., Arrenberg, S., Balakishiyeva, D., Thakur, R. B., 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., do Couto e Silva, 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. L., 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., Zhang, J. 2013; 111 (25)

    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.

    View details for DOI 10.1103/PhysRevLett.111.251301

    View details for Web of Science ID 000328883000001

  • Demonstration of surface electron rejection with interleaved germanium detectors for dark matter searches APPLIED PHYSICS LETTERS Agnese, R., Anderson, A. J., Balakishiyeva, D., Thakur, R. B., Bauer, D. A., Borgland, A., Brandt, D., Brink, P. L., Bunker, R., Cabrera, B., Caldwell, D. O., Cerdeno, D. G., Chagani, H., Cherry, M., Cooley, J., Cornell, B., Crewdson, C. H., Cushman, P., Daal, M., Di Stefano, P. C., do Couto e Silva, E., Doughty, T., Esteban, L., Fallows, S., Figueroa-Feliciano, E., Fox, J., Fritts, M., Godfrey, G. L., Golwala, S. R., Hall, J., Harris, H. R., Hasi, J., Hertel, S. A., Hines, B. A., Hofer, T., Holmgren, D., Hsu, L., Huber, M. E., JASTRAM, A., Kamaev, O., Kara, B., Kelsey, M. H., Kenany, S. A., Kennedy, A., Kenney, C. J., Kiveni, M., KOCH, K., Loer, B., 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., Novak, L., Page, K., Partridge, R., Pepin, M., Phipps, A., Prasad, K., Pyle, M., Qiu, H., Radpour, R., Rau, W., Redl, P., Reisetter, A., Resch, R. W., Ricci, Y., Saab, T., Sadoulet, B., Sander, J., Schmitt, R., Schneck, K., Schnee, R. W., Scorza, S., Seitz, D., Serfass, B., Shank, B., Speller, D., Tomada, A., Villano, A. N., Welliver, B., Wright, D. H., Yellin, S., YEN, J. J., Young, B. A., Zhang, J. 2013; 103 (16)

    View details for DOI 10.1063/1.4826093

    View details for Web of Science ID 000326148700104

  • Silicon detector results from the first five-tower run of CDMS II PHYSICAL REVIEW D Agnese, R., Ahmed, Z., Anderson, A. J., Arrenberg, S., Balakishiyeva, D., Thakur, R. B., 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 Tefano, P. C., do Couto e Silva, 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., Zhang, J. 2013; 88 (3)
  • Combined limits on WIMPs from the CDMS and EDELWEISS experiments PHYSICAL REVIEW D Ahmed, Z., Akerib, D. S., Armengaud, E., Arrenberg, S., Augier, C., Bailey, C. N., Balakishiyeva, D., Baudis, L., Bauer, D. A., Benoit, A., Berge, L., Bluemer, 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., 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., Herve, 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., 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., Walker, R. J., Wikus, P., Yakushev, E., Yellin, S., Yoo, J., Young, B. A., Zhang, J. 2011; 84 (1)
  • Search for inelastic dark matter with the CDMS II experiment PHYSICAL REVIEW D 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., do Couto e Silva, 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., Zhang, J. 2011; 83 (11)
  • Results from a Low-Energy Analysis of the CDMS II Germanium Data PHYSICAL REVIEW LETTERS 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., do Couto e Silva, 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., Zhang, J. 2011; 106 (13)

    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.

    View details for DOI 10.1103/PhysRevLett.106.131302

    View details for Web of Science ID 000288947600003

    View details for PubMedID 21517371

  • Dark Matter Search Results from the CDMS II Experiment SCIENCE 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., Zhang, J. 2010; 327 (5973): 1619-1621

    Abstract

    Astrophysical observations indicate that dark matter constitutes most of the mass in our universe, but its nature remains unknown. Over the past decade, the Cryogenic Dark Matter Search (CDMS II) experiment has provided world-leading sensitivity for the direct detection of weakly interacting massive particle (WIMP) dark matter. The final exposure of our low-temperature germanium particle detectors at the Soudan Underground Laboratory yielded two candidate events, with an expected background of 0.9 +/- 0.2 events. This is not statistically significant evidence for a WIMP signal. The combined CDMS II data place the strongest constraints on the WIMP-nucleon spin-independent scattering cross section for a wide range of WIMP masses and exclude new parameter space in inelastic dark matter models.

    View details for DOI 10.1126/science.1186112

    View details for Web of Science ID 000275970600036

    View details for PubMedID 20150446