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163 results on '"Ogburn, R. W."'

1. First direct limits on Lightly Ionizing Particles with electric charge less than $e/6$

Author

Agnese, R., Anderson, A. J., Balakishiyeva, D., Thakur, R. Basu, 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. F., 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., Asamar, E. Lopez, 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, 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., and Zhang, J.

Subjects
High Energy Physics - Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Physics - Instrumentation and Detectors
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 found no candidates, thereby excluding new parameter space for particles with electric charges between $e$/6 and $e$/200., Comment: 5 pages, 6 figures, submitted to PRL

Published
2014
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2. 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

3. 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
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4. 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
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5. 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
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6. Low-threshold analysis of CDMS shallow-site data

Author

CDMS Collaboration, Akerib, D. S., Attisha, M. J., Baudis, L., Bauer, D. A., Bolozdynya, A. I., Brink, P. L., Bunker, R., Cabrera, B., Caldwell, D. O., Chang, C. L., Clarke, R. M., Cooley, J., Crisler, M. B., Cushman, P., DeJongh, F., Dixon, R., Driscoll, D. D., Filippini, J., Funkhouser, S., Gaitskell, R. J., Golwala, S. R., Holmgren, D., Hsu, L., Huber, M. E., Kamat, S., Mahapatra, R., Mandic, V., Meunier, P., Mirabolfathi, N., Moore, D., Nam, S. W., Nelson, H., Ogburn, R. W., Qiu, X., Rau, W., Reisetter, A., Saab, T., Sadoulet, B., Sander, J., Savage, C., Schnee, R. W., Seitz, D. N., Shutt, T. A., Wang, G., Yellin, S., Yoo, J., and Young, B. A.

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

Data taken during the final shallow-site run of the first tower of the Cryogenic Dark Matter Search (CDMS II) detectors have been reanalyzed with improved sensitivity to small energy depositions. Four ~224 g germanium and two ~105 g silicon detectors were operated at the Stanford Underground Facility (SUF) between December 2001 and June 2002, yielding 118 live days of raw exposure. Three of the germanium and both silicon detectors were analyzed with a new low-threshold technique, making it possible to lower the germanium and silicon analysis thresholds down to the actual trigger thresholds of ~1 keV and ~2 keV, respectively. Limits on the spin-independent cross section for weakly interacting massive particles (WIMPs) to elastically scatter from nuclei based on these data exclude interesting parameter space for WIMPs with masses below 9 GeV/c^2. Under standard halo assumptions, these data partially exclude parameter space favored by interpretations of the DAMA/LIBRA and CoGeNT experiments' data as WIMP signals, and exclude new parameter space for WIMP masses between 3 GeV/c^2 and 4 GeV/c^2., Comment: 18 pages, 12 figures, 5 tables

Published
2010
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7. Antenna-coupled TES Bolometer Arrays for BICEP2/Keck and SPIDER

Author

Orlando, A., Aikin, R. W, Amiri, M., Bock, J. J., Bonetti, J. A., Brevik, J. A., Burger, B., Chattopadthyay, G., Day, P. K., Filippini, J. P., Golwala, S. R., Halpern, M., Hasselfield, M., Hilton, G. C., Irwin, K. D., Kenyon, M., Kovac, J. M., Kuo, C. L., Lange, A. E., LeDuc, H. G., Llombart, N., Nguyen, H. T., Ogburn, R. W., Reintsema, C. D., Runyan, M. C., Staniszewski, Z., Sudiwala, R., Teply, G., Trangsrud, A. R., Turner, A. D., and Wilson, P.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

BICEP2/Keck and SPIDER are cosmic microwave background (CMB) polarimeters targeting the B-mode polarization induced by primordial gravitational waves from inflation. They will be using planar arrays of polarization sensitive antenna-coupled TES bolometers, operating at frequencies between 90 GHz and 220 GHz. At 150 GHz each array consists of 64 polarimeters and four of these arrays are assembled together to make a focal plane, for a total of 256 dual-polarization elements (512 TES sensors). The detector arrays are integrated with a time-domain SQUID multiplexer developed at NIST and read out using the multi-channels electronics (MCE) developed at the University of British Columbia. Following our progress in improving detector parameters uniformity across the arrays and fabrication yield, our main effort has focused on improving detector arrays optical and noise performances, in order to produce science grade focal planes achieving target sensitivities. We report on changes in detector design implemented to optimize such performances and following focal plane arrays characterization. BICEP2 has deployed a first 150 GHz science grade focal plane to the South Pole in December 2009., Comment: 10 pages, 7 figures; SPIE proceedings for Millimeter, Submillimeter and Far-Infrared Detectors and Instrumentation for Astronomy V (Conference 7741, June 2010, San Diego, CA, USA)

Published
2010
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8. Antenna-coupled TES bolometer arrays for CMB polarimetry

Author

Kuo, C. L., Bock, J. J., Bonetti, J. A., Brevik, J., Chattopadhyay, G., Day, P. K., Golwala, S., Kenyon, M., Lange, A. E., LeDuc, H. G., Nguyen, H., Ogburn, R. W., Orlando, A., Trangsrud, A., Turner, A., Wang, G., and Zmuidzinas, J.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Extragalactic Astrophysics
Abstract

We describe the design and performance of polarization selective antenna-coupled TES arrays that will be used in several upcoming Cosmic Microwave Background (CMB) experiments: SPIDER, BICEP-2/SPUD. The fully lithographic polarimeter arrays utilize planar phased-antennas for collimation (F/4 beam) and microstrip filters for band definition (25% bandwidth). These devices demonstrate high optical efficiency, excellent beam shapes, and well-defined spectral bands. The dual-polarization antennas provide well-matched beams and low cross polarization response, both important for high-fidelity polarization measurements. These devices have so far been developed for the 100 GHz and 150 GHz bands, two premier millimeter-wave atmospheric windows for CMB observations. In the near future, the flexible microstrip-coupled architecture can provide photon noise-limited detection for the entire frequency range of the CMBPOL mission. This paper is a summary of the progress we have made since the 2006 SPIE meeting in Orlando, FL.

Published
2009
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9. 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
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10. Beyond the CDMS-II Dark Matter Search: SuperCDMS

Author

Brink, P. L., Cabrera, B., Chang, C. L., Cooley, J., Ogburn, R. W., Akerib, D. S., Bailey, C. N., Brusov, P. P., Dragowsky, M. R., Grant, D. R., Hennings-Yeomans, R., Schnee, R. W., Attisha, M. J., Gaitskell, R. J., Thompson, J-P. F., Baudis, L., Saab, T., Bauer, D. A., Crisler, M. B., Holmgren, D., Ramberg, E., Yoo, J., Bunker, R., Caldwell, D. O., Mahapatra, R., Nelson, H., Sander, J., Yellin, S., Cushman, P., Duong, L., Reisetter, A., Denes, P., Lu, A., Sadoulet, B., Filippini, J., Meunier, P., Mirabolfathi, N., Seitz, D. N., Serfass, B., Sundqvist, K. M., Golwala, S. R., Huber, M. E., Irwin, K. D., and Young, B. A.

Subjects
Astrophysics
Abstract

Presently the CDMS-II collaboration's Weakly Interacting Massive Particle (WIMP) search at the Soudan Underground Laboratory sets the most stringent exclusion limits of any WIMP cold dark matter direct-detection experiment. To extend our reach further, to WIMP-nucleon cross sections in the range $10^{-46} - 10^{-44}$cm$^2$, we propose SuperCDMS, which would take advantage of a very deep site. One promising site is the recently approved SNOLab facility in Canada. In this paper we will present our overall plan, identify primary issues, and set the goals that need to be met prior to embarking upon each phase of SuperCDMS., Comment: Submitted to Texas Symposium on Relativistic Astrophysics held at Stanford, Dec. 2004. Paper has 6 pages, 4 figures

Published
2005

11. BICEP / Keck XVII: Line of Sight Distortion Analysis: Estimates of Gravitational Lensing, Anisotropic Cosmic Birefringence, Patchy Reionization, and Systematic Errors

Author

Keck Collaboration, Ade, P. A. R., Ahmed, Z., Amiri, M., Barkats, D., Thakur, R. Basu, Beck, D., Bischoff, C. A., Bock, J. J., Boenish, H., Bullock, E., Buza, V., Cheshire, J. R., Connors, J., Cornelison, J., Crumrine, M., Cukierman, A., Denison, E. V., Dierickx, M., Duband, L., Eiben, M., Fatigoni, S., Filippini, J. P., Fliescher, S., Giannakopoulos, C., Goeckner-Wald, N., Goldfinger, D. C., Grayson, J., Grimes, P., Halal, G., Hall, G., Halpern, M., Hand, E., Harrison, S., Henderson, S., Hildebrandt, S. R., Hubmayr, J., Hui, H., Irwin, K. D., Kang, J., Karkare, K. S., Karpel, E., Kefeli, S., Kernasovskiy, S. A., Kovac, J. M., Kuo, C. L., Lau, K., Leitch, E. M., Lennox, A., Megerian, K. G., Minutolo, L., Moncelsi, L., Nakato, Y., Namikawa, T., Nguyen, H. T., O'Brient, R., Ogburn, R. W., Palladino, S., Petroff, M. A., Prouve, T., Pryke, C., Racine, B., Reintsema, C. D., Richter, S., Schillaci, A., Schmitt, B. L., Schwarz, R., Sheehy, C. D., Singari, B., Soliman, A., Germaine, T. St, Steinbach, B., Sudiwala, R. V., Teply, G. P., Thompson, K. L., Tolan, J. E., Tucker, C., Turner, A. D., Umilta, C., Verges, C., Vieregg, A. G., Wandui, A., Weber, A. C., Wiebe, D. V., Willmert, J., Wong, C. L., Wu, W. L. K., Yang, H., Yoon, K. W., Young, E., Yu, C., Zeng, L., Zhang, C., Zhang, S., Département des Systèmes Basses Températures (DSBT ), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), BICEP/Keck, Service des Basses Températures (SBT ), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), Space and Planetary Science, FOS: Physical sciences, Astronomy and Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present estimates of line-of-sight distortion fields derived from the 95 GHz and 150 GHz data taken by BICEP2, BICEP3, and Keck Array up to the 2018 observing season, leading to cosmological constraints and a study of instrumental and astrophysical systematics. Cosmological constraints are derived from three of the distortion fields concerning gravitational lensing from large-scale structure, polarization rotation from magnetic fields or an axion-like field, and the screening effect of patchy reionization. We measure an amplitude of the lensing power spectrum $A_L^{\phi\phi}=0.95 \pm 0.20$. We constrain polarization rotation, expressed as the coupling constant of a Chern-Simons electromagnetic term $g_{a\gamma} \leq 2.6 \times 10^{-2}/H_I$, where $H_I$ is the inflationary Hubble parameter, and an amplitude of primordial magnetic fields smoothed over 1 Mpc $B_{1\text{Mpc}} \leq 6.6 \;\text{nG}$ at 95 GHz. We constrain the root mean square of optical-depth fluctuations in a simple "crinkly surface" model of patchy reionization, finding $A^\tau, Comment: 34 pages, 19 figures, accepted for publication in The Astrophysical Journal

Published
2023

12. BICEP/Keck. XVI. Characterizing Dust Polarization through Correlations with Neutral Hydrogen

Author

Keck Collaboration, Ade, P. A. R., Ahmed, Z., Amiri, M., Barkats, D., Thakur, R. Basu, Beck, D., Bischoff, C. A., Bock, J. J., Boenish, H., Bullock, E., Buza, V., Cheshire, J. R., Clark, S. E., Connors, J., Cornelison, J., Crumrine, M., Cukierman, A., Denison, E. V., Dierickx, M., Duband, L., Eiben, M., Fatigoni, S., Filippini, J. P., Fliescher, S., Giannakopoulos, C., Goeckner-Wald, N., Goldfinger, D. C., Grayson, J., Grimes, P., Halal, G., Hall, G., Halpern, M., Hand, E., Harrison, S., Henderson, S., Hildebrandt, S. R., Hubmayr, J., Hui, H., Irwin, K. D., Kang, J., Karkare, K. S., Karpel, E., Kefeli, S., Kernasovskiy, S. A., Kovac, J. M., Kuo, C. L., Lau, K., Leitch, E. M., Lennox, A., Megerian, K. G., Minutolo, L., Moncelsi, L., Nakato, Y., Namikawa, T., Nguyen, H. T., O'Brient, R., Ogburn, R. W., Palladino, S., Petroff, M. A., Prouve, T., Pryke, C., Racine, B., Reintsema, C. D., Richter, S., Schillaci, A., Schmitt, B. L., Schwarz, R., Sheehy, C. D., Singari, B., Soliman, A., Germaine, T. St, Steinbach, B., Sudiwala, R. V., Teply, G. P., Thompson, K. L., Tolan, J. E., Tucker, C., Turner, A. D., Umilta, C., Verges, C., Vieregg, A. G., Wandui, A., Weber, A. C., Wiebe, D. V., Willmert, J., Wong, C. L., Wu, W. L. K., Yang, H., Yoon, K. W., Young, E., Yu, C., Zeng, L., Zhang, C., Zhang, S., Département des Systèmes Basses Températures (DSBT ), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and BICEP/Keck

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, Astronomy and Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We characterize Galactic dust filaments by correlating BICEP/Keck and Planck data with polarization templates based on neutral hydrogen (H I) observations. Dust polarization is important for both our understanding of astrophysical processes in the interstellar medium (ISM) and the search for primordial gravitational waves in the cosmic microwave background (CMB). In the diffuse ISM, H I is strongly correlated with the dust and partly organized into filaments that are aligned with the local magnetic field. We analyze the deep BICEP/Keck data at 95, 150, and 220 GHz, over the low-column-density region of sky where BICEP/Keck has set the best limits on primordial gravitational waves. We separate the H I emission into distinct velocity components and detect dust polarization correlated with the local Galactic H I but not with the H I associated with Magellanic Stream I. We present a robust, multifrequency detection of polarized dust emission correlated with the filamentary H I morphology template down to 95 GHz. For assessing its utility for foreground cleaning, we report that the H I morphology template correlates in B modes at a $\sim$10-65$\%$ level over the multipole range $20 < \ell < 200$ with the BICEP/Keck maps, which contain contributions from dust, CMB, and noise components. We measure the spectral index of the filamentary dust component spectral energy distribution to be $β= 1.54 \pm 0.13$. We find no evidence for decorrelation in this region between the filaments and the rest of the dust field or from the inclusion of dust associated with the intermediate velocity H I. Finally, we explore the morphological parameter space in the H I-based filamentary model., 27 pages, 12 figures

Published
2023

13. BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season

Author

Keck Collaboration, Ade, P. A. R., Ahmed, Z., Amiri, M., Barkats, D., Thakur, R. Basu, Beck, D., Bischoff, C., Bock, J. J., Boenish, H., Bullock, E., Buza, V., Cheshire, J. R., Connors, J., Cornelison, J., Crumrine, M., Cukierman, A., Denison, E. V., Dierickx, M., Duband, L., Eiben, M., Fatigoni, S., Filippini, J. P., Fliescher, S., Goeckner-Wald, N., Goldfinger, D. C., Grayson, J., Grimes, P., Halal, G., Hall, G., Halpern, M., Hand, E., Harrison, S., Henderson, S., Hildebrandt, S. R., Hilton, G. C., Hubmayr, J., Hui, H., Irwin, K. D., Kang, J., Karkare, K. S., Karpel, E., Kefeli, S., Kernasovskiy, S. A., Kovac, J. M., Kuo, C. L., Lau, K., Leitch, E. M., Lennox, A., Megerian, K. G., Minutolo, L., Moncelsi, L., Nakato, Y., Namikawa, T., Nguyen, H. T., O'Brient, R., Ogburn, R. W., Palladino, S., Prouve, T., Pryke, C., Racine, B., Reintsema, C. D., Richter, S., Schillaci, A., Schmitt, B. L., Schwarz, R., Sheehy, C. D., Soliman, A., Germaine, T. St, Steinbach, B., Sudiwala, R. V., Teply, G. P., Thompson, K. L., Tolan, J. E., Tucker, C., Turner, A., Umilta, C., Verges, C., Vieregg, A. G., Wandui, A., Weber, A. C., Wiebe, D. V., Willmert, J., Wong, C. L., Wu, W. L. K., Yang, H., Yoon, K. W., Young, E., Yu, C., Zeng, L., Zhang, C., and Zhang, S.

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present results from an analysis of all data taken by the BICEP2, Keck Array and BICEP3 CMB polarization experiments up to and including the 2018 observing season. We add additional Keck Array observations at 220 GHz and BICEP3 observations at 95 GHz to the previous 95/150/220 GHz data set. The $Q/U$ maps now reach depths of 2.8, 2.8 and 8.8 $\mu{\mathrm K}_{cmb}$ arcmin at 95, 150 and 220 GHz respectively over an effective area of $\approx 600$ square degrees at 95 GHz and $\approx 400$ square degrees at 150 & 220 GHz. The 220 GHz maps now achieve a signal-to-noise on polarized dust emission exceeding that of Planck at 353 GHz. We take auto- and cross-spectra between these maps and publicly available WMAP and Planck maps at frequencies from 23 to 353 GHz and evaluate the joint likelihood of the spectra versus a multicomponent model of lensed-$\Lambda$CDM+$r$+dust+synchrotron+noise. The foreground model has seven parameters, and no longer requires a prior on the frequency spectral index of the dust emission taken from measurements on other regions of the sky. This model is an adequate description of the data at the current noise levels. The likelihood analysis yields the constraint $r_{0.05}, Comment: 22 pages, 24 figures, as published in PRL, data and figures available for download at http://bicepkeck.org

Published
2021

14. BICEP/Keck XII: Constraints on axionlike polarization oscillations in the cosmic microwave background

Author

Keck Collaboration, Ade, P. A. R., Ahmed, Z., Amiri, M., Barkats, D., Thakur, R. Basu, Bischoff, C. A., Bock, J. J., Boenish, H., Bullock, E., Buza, V., Cheshire, J. R., Connors, J., Cornelison, J., Crumrine, M., Cukierman, A., Dierickx, M., Duband, L., Fatigoni, S., Filippini, J. P., Fliescher, S., Goeckner-Wald, N., Grayson, J., Hall, G., Halpern, M., Harrison, S., Henderson, S., Hildebrandt, S. R., Hilton, G. C., Hubmayr, J., Hui, H., Irwin, K. D., Kang, J., Karkare, K. S., Karpel, E., Keating, B. G., Kefeli, S., Kernasovskiy, S. A., Kovac, J. M., Kuo, C. L., Lau, K., Leitch, E. M., Megerian, K. G., Moncelsi, L., Namikawa, T., Netterfield, C. B., Nguyen, H. T., O'Brient, R., Ogburn, R. W., Palladino, S., Prouve, T., Pryke, C., Racine, B., Reintsema, C. D., Richter, S., Schillaci, A., Schmitt, B. L., Schwarz, R., Sheehy, C. D., Soliman, A., Germaine, T. St., Steinbach, B., Sudiwala, R. V., Teply, G., Thompson, K. L., Tolan, J. E., Tucker, C., Turner, A. D., Umilta, C., Vieregg, A. G., Wandui, A., Weber, A. C., Wiebe, D. V., Willmert, J., Wong, C. L., Wu, W. L. K., Yang, H., Yoon, K. W., Young, E., Yu, C., Zeng, L., Zhang, C., Département des Systèmes Basses Températures (DSBT ), Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and BICEP/Keck

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), background: model, FOS: Physical sciences, cosmic background radiation: polarization, Astrophysics::Cosmology and Extragalactic Astrophysics, dark matter: density, axion: parameter space, dark matter: direct detection, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), cosmic rays, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Experiments in gravity, beam: polarization, Astrophysics::Instrumentation and Methods for Astrophysics, coupling constant, oscillation, BICEP, sensitivity, polarization: monitoring, photon axion: coupling, cosmic background radiation: temperature, High Energy Physics - Phenomenology, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], axion-like particles, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], cosmology, S029AXI, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present a search for axion-like polarization oscillations in the cosmic microwave background (CMB) with observations from the Keck Array. A local axion field induces an all-sky, temporally sinusoidal rotation of CMB polarization. A CMB polarimeter can thus function as a direct-detection experiment for axion-like dark matter. We develop techniques to extract an oscillation signal. Many elements of the method are generic to CMB polarimetry experiments and can be adapted for other datasets. As a first demonstration, we process data from the 2012 observing season to set upper limits on the axion-photon coupling constant in the mass range $10^{-21}$-$10^{-18}~\mathrm{eV}$, which corresponds to oscillation periods on the order of hours to months. We find no statistically significant deviations from the background model. For periods larger than $24~\mathrm{hr}$ (mass $m < 4.8 \times 10^{-20}~\mathrm{eV}$), the median 95%-confidence upper limit is equivalent to a rotation amplitude of $0.68^\circ$, which constrains the axion-photon coupling constant to $g_{����} < \left ( 1.1 \times 10^{-11}~\mathrm{GeV}^{-1} \right ) m/\left (10^{-21}~\mathrm{eV} \right )$, if axion-like particles constitute all of the dark matter. The constraints can be improved substantially with data already collected by the BICEP series of experiments. Current and future CMB polarimetry experiments are expected to achieve sufficient sensitivity to rule out unexplored regions of the axion parameter space., 25 pages, 6 figures, 2 tables

Published
2021

15. Present Status of the SuperCDMS program

Author

Akerib, D. S., Bailey, C. N., Bauer, D. A., Brink, P. L., Bunker, R., Cabrera, B., Caldwell, D. O., Cooley, J., Cushman, P., DeJongh, F., Dragowsky, M. R., Duong, L., Figueroa-Feliciano, E., Filippini, J., Golwala, S. R., Grant, D. R., Hall, J., Hennings-Yeomans, R., Holmgren, D., Huber, M. E., Irwin, K. D., Mahapatra, R., Mirabolfathi, N., Nelson, H., Novak, L., Ogburn, R. W., Pyle, M., Qiu, X., Ramberg, E., Rau, W., Reisetter, A., Saab, T., Sadoulet, B., Sander, J., Schmitt, R. L., Schnee, R. W., Seitz, D. N., Serfass, B., Sundqvist, K. M., Tomada, A., Yellin, S., Yoo, J., and Young, B. A.

Published
2008
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16. Status of the Cryogenic Dark Matter Search Experiment

Author

Ahmed, Z., Akerib, D. S., Attisha, M. J., Bailey, C. N., Baudis, L., Bauer, D. A., Brink, P. L., Brusov, P. P., Bunker, R., Cabrera, B., Caldwell, D. O., Chang, C. L., Cooley, J., Crisler, M. B., Cushman, P., Daal, M., DeJongh, F., Dixon, R., Dragowsky, M. R., Duong, L., Ferril, R., Figueroa-Feliciano, E., Filippini, J., Gaitskell, R. J., Golwala, S. R., Grant, D. R., Hennings-Yeomans, R., Holmgren, D., Huber, M. E., Kamat, S., Leclercq, S., Mahapatra, R., Mandic, V., Meunier, P., Mirabolfathi, N., Nelson, H., Ogburn, R. W., Pyle, M., Qiu, X., Ramberg, E., Rau, W., Reisetter, A., Ross, R. R., Saab, T., Sadoulet, B., Sander, J., Schnee, R. W., Seitz, D. N., Serfass, B., Sundqvist, K. M., Thompson, J.-P. F., Wang, G., Yellin, S., Yoo, J., and Young, B. A.

Published
2008
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17. Detector Development for the Next Phases of the Cryogenic Dark Matter Search: Results from 1 Inch Ge and Si Detectors

Author

Bailey, C. N., Ahmed, Z., Akerib, D. S., Brink, P. L., Cabrera, B., Castle, J. P., Cooley, J., Danowski, M. E., Dragowsky, M. R., Filippini, J., Grant, D. R., Hennings-Yeomans, R., Mirabolfathi, N., Novak, L., Ogburn, R. W., Pyle, M., Ruderman, J., Sadoulet, B., Schnee, R. W., Seitz, D. N., Serfass, B., Sundqvist, K. M., Tomada, A., and Young, B. A.

Published
2008
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18. Polarization calibration of the BICEP3 CMB polarimeter at the South Pole

Author

Zmuidzinas, Jonas, Gao, Jian-Rong, Cornelison, J., Ade, P. A. R., Ahmed, Zeeshan, Amiri, Mandana, Barkats, Denis, Basu Thakur, R., Bischoff, Colin, Bock, J. J., Boenish, Hans, Bullock, Eric, Buza, Victor, Cheshire, James R., Connors, Jake, Crumrine, Michael, Cukierman, Ari J., Denison, Edward, Dierickx, Marion, Duband, Lionel, Eiben, Miranda, Fatigoni, Sofia, Filippini, Jeff, Fliescher, Stefan, Goeckner-Wald, Neil, Goldfinger, David C., Grayson, James A., Grimes, Paul, Hall, Grantland, Halal, George, Halpern, Mark, Harrison, Samuel, Henderson, Shawn, Hildebrandt, S. R., Hilton, Gene C., Hubmayr, Johannes, Hui, H., Irwin, Kent D., Kang, Jae Hwan, Karkare, Kirit, Karpel, Ethan, Kefeli, S., Kernasovkiy, Sarah A., Kovac, John M., Kuo, Chao-Lin, Lau, King, Leitch, Eric, Megerian, K. G., Minutolo, L., Moncelsi, L., Nakato, Yuka, Namikawa, Toshiya, Nguyen, H. T., O'Brient, R., Ogburn, R W., Palladino, Steven, Precup, Nathan, Prouve, Thomas, Pryke, Clement, Racine, Benjamin, Reintsema, Carl D., Richter, Steffen, Schillaci, A., Schmitt, Benjamin, Schwarz, Robert, Sheehy, Christopher D., Soliman, A., St. Germaine, T., Steinbach, B., Sudiwala, Rashmi, Teply, G. P., Thompson, Keith, Tolan, James E., Tucker, Carole, Turner, A. D., Umilita, Caterina, Vieregg, Abigail G., Wandui, A., Weber, A. C., Wiebe, Don, Willmert, Justin, Wong, Chin Lin, Wu, Kimmy, Yang, Eric, Yoon, Ki Won, Young, Edward, Yu, Cyndia, Zeng, Lingzhen, Zhang, C., Zhang, S., Zmuidzinas, Jonas, Gao, Jian-Rong, Cornelison, J., Ade, P. A. R., Ahmed, Zeeshan, Amiri, Mandana, Barkats, Denis, Basu Thakur, R., Bischoff, Colin, Bock, J. J., Boenish, Hans, Bullock, Eric, Buza, Victor, Cheshire, James R., Connors, Jake, Crumrine, Michael, Cukierman, Ari J., Denison, Edward, Dierickx, Marion, Duband, Lionel, Eiben, Miranda, Fatigoni, Sofia, Filippini, Jeff, Fliescher, Stefan, Goeckner-Wald, Neil, Goldfinger, David C., Grayson, James A., Grimes, Paul, Hall, Grantland, Halal, George, Halpern, Mark, Harrison, Samuel, Henderson, Shawn, Hildebrandt, S. R., Hilton, Gene C., Hubmayr, Johannes, Hui, H., Irwin, Kent D., Kang, Jae Hwan, Karkare, Kirit, Karpel, Ethan, Kefeli, S., Kernasovkiy, Sarah A., Kovac, John M., Kuo, Chao-Lin, Lau, King, Leitch, Eric, Megerian, K. G., Minutolo, L., Moncelsi, L., Nakato, Yuka, Namikawa, Toshiya, Nguyen, H. T., O'Brient, R., Ogburn, R W., Palladino, Steven, Precup, Nathan, Prouve, Thomas, Pryke, Clement, Racine, Benjamin, Reintsema, Carl D., Richter, Steffen, Schillaci, A., Schmitt, Benjamin, Schwarz, Robert, Sheehy, Christopher D., Soliman, A., St. Germaine, T., Steinbach, B., Sudiwala, Rashmi, Teply, G. P., Thompson, Keith, Tolan, James E., Tucker, Carole, Turner, A. D., Umilita, Caterina, Vieregg, Abigail G., Wandui, A., Weber, A. C., Wiebe, Don, Willmert, Justin, Wong, Chin Lin, Wu, Kimmy, Yang, Eric, Yoon, Ki Won, Young, Edward, Yu, Cyndia, Zeng, Lingzhen, Zhang, C., and Zhang, S.

Abstract

The BICEP3 CMB Polarimeter is a small-aperture refracting telescope located at the South Pole and is specifically designed to search for the possible signature of inflationary gravitational waves in the Cosmic Microwave Background (CMB). The experiment measures polarization on the sky by differencing the signal of co-located, orthogonally polarized antennas coupled to Transition Edge Sensor (TES) detectors. We present precise measurements of the absolute polarization response angles and polarization efficiencies for nearly all of BICEP3's ~800 functioning polarization-sensitive detector pairs from calibration data taken in January 2018. Using a Rotating Polarized Source (RPS), we mapped polarization response for each detector over a full 360 degrees of source rotation and at multiple telescope boresight rotations from which per-pair polarization properties were estimated. In future work, these results will be used to constrain signals predicted by exotic physical models such as Cosmic Birefringence.

Published
2020

19. Polarization calibration of the BICEP3 CMB polarimeter at the South Pole

Author

Cornelison, James, primary, Ade, P. A. R. A., additional, Ahmed, Zeeshan, additional, Amiri, Mandana, additional, Barkats, Denis, additional, Basu Thakur, Ritoban, additional, Bischoff, Colin, additional, Bock, James, additional, Boenish, Hans, additional, Bullock, Eric, additional, Buza, Victor, additional, Cheshire, James R., additional, Connors, Jake, additional, Crumrine, Michael, additional, Cukierman, Ari J., additional, Denison, Edward, additional, Dierickx, Marion, additional, Duband, Lionel, additional, Eiben, Miranda, additional, Fatigoni, Sofia, additional, Filippini, Jeff, additional, Fliescher, Stefan, additional, Goeckner-Wald, Neil, additional, Goldfinger, David C., additional, Grayson, James A., additional, Grimes, Paul, additional, Hall, Grantland, additional, Halal, George, additional, Halpern, Mark, additional, Harrison, Samuel, additional, Henderson, Shawn, additional, Hildebrandt, Sergi, additional, Hilton, Gene C., additional, Hubmayr, Johannes, additional, Hui, Howard, additional, Irwin, Kent D., additional, Kang, Jae Hwan, additional, Karkare, Kirit, additional, Karpel, Ethan, additional, Kefeli, Sinan, additional, Kernasovkiy, Sarah A., additional, Kovac, John M., additional, Kuo, Chao-Lin, additional, Lau, King, additional, Leitch, Eric, additional, Megerian, Koko G., additional, Minutolo, Lorenzo, additional, Moncelsi, Lorenzo, additional, Nakato, Yuka, additional, Namikawa, Toshiya, additional, Nguyen, Hien, additional, O'Brient, Roger, additional, Ogburn, R W., additional, Palladino, Steven, additional, Precup, Nathan, additional, Prouve, Thomas, additional, Pryke, Clement, additional, Racine, Benjamin, additional, Reintsema, Carl D., additional, Richter, Steffen, additional, Schillaci, Alessandro, additional, Schmitt, Benjamin, additional, Schwarz, Robert, additional, Sheehy, Christopher D., additional, Soliman, Ahmed, additional, St. Germaine, Tyler, additional, Steinbach, Bryan, additional, Sudiwala, Rashmi, additional, Teply, Grant, additional, Thompson, Keith, additional, Tolan, James E., additional, Tucker, Carole, additional, Turner, Anthony D., additional, Umilita, Caterina, additional, Vieregg, Abigail G., additional, Wandui, Albert, additional, Weber, Alexis, additional, Wiebe, Don, additional, Willmert, Justin, additional, Wong, Chin Lin, additional, Wu, Kimmy, additional, Yang, Eric, additional, Yoon, Ki Won, additional, Young, Edward, additional, Yu, Cyndia, additional, Zeng, Lingzhen, additional, Zhang, Cheng, additional, and Zhang, Silvia, additional

Published
2020
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20. Optical Characterization of the Keck Array and BICEP3 CMB Polarimeters from 2016 to 2019

Author

St Germaine, T., primary, Ade, P. A. R., additional, Ahmed, Z., additional, Amiri, M., additional, Barkats, D., additional, Basu Thakur, R., additional, Bischoff, C. A., additional, Bock, J. J., additional, Boenish, H., additional, Bullock, E., additional, Buza, V., additional, Cheshire, J., additional, Connors, J., additional, Cornelison, J., additional, Crumrine, M., additional, Cukierman, A., additional, Dierickx, M., additional, Duband, L., additional, Fatigoni, S., additional, Filippini, J. P., additional, Fliescher, S., additional, Grayson, J. A., additional, Hall, G., additional, Halpern, M., additional, Harrison, S., additional, Hildebrandt, S. R., additional, Hilton, G. C., additional, Hui, H., additional, Irwin, K. D., additional, Kang, J., additional, Karkare, K. S., additional, Karpel, E., additional, Kefeli, S., additional, Kernasovskiy, S. A., additional, Kovac, J. M., additional, Kuo, C. L., additional, Lau, K., additional, Leitch, E. M., additional, Megerian, K. G., additional, Moncelsi, L., additional, Namikawa, T., additional, Netterfield, C. B., additional, Nguyen, H. T., additional, O’Brient, R., additional, Ogburn, R. W., additional, Palladino, S., additional, Pryke, C., additional, Racine, B., additional, Reintsema, C. D., additional, Richter, S., additional, Schillaci, A., additional, Schwarz, R., additional, Sheehy, C. D., additional, Soliman, A., additional, Steinbach, B., additional, Sudiwala, R. V., additional, Thompson, K. L., additional, Tolan, J. E., additional, Tucker, C., additional, Turner, A. D., additional, Umiltà, C., additional, Vieregg, A. G., additional, Wandui, A., additional, Weber, A. C., additional, Wiebe, D. V., additional, Willmert, J., additional, Wong, C. L., additional, Wu, W. L. K., additional, Yang, E., additional, Yoon, K. W., additional, Young, E., additional, Yu, C., additional, and Zhang, C., additional

Published
2020
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21. 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
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22. BICEP2 / Keck Array x: Constraints on Primordial Gravitational Waves using Planck, WMAP, and New BICEP2/Keck Observations through the 2015 Season

Author

Array, Keck, Collaborations, BICEP2, Ade, P. A. R., Ahmed, Z., Aikin, R. W., Alexander, K. D., Barkats, D., Benton, S. J., Bischoff, C. A., Bock, J. J., Bowens-Rubin, R., Brevik, J. A., Buder, I., Bullock, E., Buza, V., Connors, J., Cornelison, J., Crill, B. P., Crumrine, M., Dierickx, M., Duband, L., Dvorkin, C., Filippini, J. P., Fliescher, S., Grayson, J., Hall, G., Halpern, M., Harrison, S., Hildebrandt, S. R., Hilton, G. C., Hui, H., Irwin, K. D., Kang, J., Karkare, K. S., Karpel, E., Kaufman, J. P., Keating, B. G., Kefeli, S., Kernasovskiy, S. A., Kovac, J. M., Kuo, C. L., Larsen, N. A., Lau, K., Leitch, E. M., Lueker, M., Megerian, K. G., Moncelsi, L., Namikawa, T., Netterfield, C. B., Nguyen, H. T., O'Brient, R., Ogburn, R. W., Palladino, S., Pryke, C., Racine, B., Richter, S., Schillaci, A., Schwarz, R., Sheehy, C. D., Soliman, A., Germaine, T. St., Staniszewski, Z. K., Steinbach, B., Sudiwala, R. V., Teply, G. P., Thompson, K. L., Tolan, J. E., Tucker, C., Turner, A. D., Umilta, C., Vieregg, A. G., Wandui, A., Weber, A. C., Wiebe, D. V., Willmert, J., Wong, C. L., Wu, W. L. K., Yang, H., Yoon, K. W., Zhang, C., Institut Nanosciences et Cryogénie (INAC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), BICEP2, Keck Array, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), and Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)

Subjects
data analysis method, noise, cosmological model, Cosmology and Nongalactic Astrophysics (astro-ph.CO), satellite: Planck, Astrophysics::Instrumentation and Methods for Astrophysics, gravitational radiation: primordial, FOS: Physical sciences, cosmic background radiation: polarization, Astrophysics::Cosmology and Extragalactic Astrophysics, BICEP, statistical analysis, gravitation: lens, WMAP, synchrotron, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present results from an analysis of all data taken by the BICEP2/Keck CMB polarization experiments up to and including the 2015 observing season. This includes the first Keck Array observations at 220 GHz and additional observations at 95 & 150 GHz. The $Q/U$ maps reach depths of 5.2, 2.9 and 26 $\mu$K$_{cmb}$ arcmin at 95, 150 and 220 GHz respectively over an effective area of $\approx 400$ square degrees. The 220 GHz maps achieve a signal-to-noise on polarized dust emission approximately equal to that of Planck at 353 GHz. We take auto- and cross-spectra between these maps and publicly available WMAP and Planck maps at frequencies from 23 to 353 GHz. We evaluate the joint likelihood of the spectra versus a multicomponent model of lensed-$\Lambda$CDM+$r$+dust+synchrotron+noise. The foreground model has seven parameters, and we impose priors on some of these using external information from Planck and WMAP derived from larger regions of sky. The model is shown to be an adequate description of the data at the current noise levels. The likelihood analysis yields the constraint $r_{0.05}, Comment: 23 pages, 23 figures, as accepted by PRL, data and figures available for download at http://bicepkeck.org/

Published
2018

23. BICEP2 / Keck Array IX: New bounds on anisotropies of CMB polarization rotation and implications for axionlike particles and primordial magnetic fields

Author

Array, Keck, Bicep, Collaborations, Ade, P. A. R., Ahmed, Z., Aikin, R. W., Alexander, K. D., Barkats, D., Benton, S. J., Bischoff, C. A., Bock, J. J., Bowens-Rubin, R., Brevik, J. A., Buder, I., Bullock, E., Buza, V., Connors, J., Crill, B. P., Duband, L., Dvorkin, C., Filippini, J. P., Fliescher, S., St Germaine, T., Ghosh, T., Grayson, J., Harrison, S., Hildebrandt, S. R., Hilton, G. C., Hui, H., Irwin, K. D., Kang, J., Karkare, K. S., Karpel, E., Kaufman, J. P., Keating, B. G., Kefeli, S., Kernasovskiy, S. A., Kovac, J. M., Kuo, C. L., Larsen, N. A., Leitch, E. M., Megerian, K. G., Moncelsi, L., Namikawa, T., Netterfield, C. B., Nguyen, H. T., O Brient, R., Ogburn, R. W., Pryke, C., Richter, S., Schillaci, A., Schwarz, R., Sheehy, C. D., Staniszewski, Z. K., Steinbach, B., Sudiwala, R. V., Teply, G. P., Thompson, K. L., Tolan, J. E., Carole Tucker, Turner, A. D., Vieregg, A. G., Weber, A. C., Wiebe, D. V., Willmert, J., Wong, C. L., Wu, W. L. K., Yoon, K. W., Institut Nanosciences et Cryogénie (INAC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), BICEP2, Keck Arrary, Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut Nanosciences et Cryogénie ( INAC ), and Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Grenoble Alpes ( UGA )

Subjects
cosmological model, Photon, Cosmology and Nongalactic Astrophysics (astro-ph.CO), polarization: anisotropy, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Cosmic microwave background, FOS: Physical sciences, cosmic background radiation: polarization, Astrophysics, 01 natural sciences, Electromagnetic radiation, High Energy Physics - Experiment, polarization: rotation, symbols.namesake, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), statistical analysis, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], 0103 physical sciences, Faraday effect, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], inflation, 010306 general physics, QC, QB, Physics, Brewster's angle, 010308 nuclear & particles physics, Chern-Simons term, coupling constant, magnetic field: primordial, Fine-structure constant, photon: interaction, Polarization (waves), BICEP, detector: sensitivity, High Energy Physics - Phenomenology, Amplitude, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], symbols, power spectrum: angular dependence, axion-like particles, [ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], S029IAG, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Cosmology and Nongalactic Astrophysics, cosmic background radiation: anisotropy
Abstract

We present the strongest constraints to date on anisotropies of cosmic microwave background (CMB) polarization rotation derived from 150 GHz data taken by the BICEP2/Keck Array CMB experiments up to and including the 2014 observing season (BK14). The definition of the polarization angle in BK14 maps has gone through self-calibration in which the overall angle is adjusted to minimize the observed TB and EB power spectra. After this procedure, the QU maps lose sensitivity to a uniform polarization rotation but are still sensitive to anisotropies of polarization rotation. This analysis places constraints on the anisotropies of polarization rotation, which could be generated by CMB photons interacting with axionlike pseudoscalar fields or Faraday rotation induced by primordial magnetic fields. The sensitivity of BK14 maps ($\sim 3\mu$K-arcmin) makes it possible to reconstruct anisotropies of the polarization rotation angle and measure their angular power spectrum much more precisely than previous attempts. Our data are found to be consistent with no polarization rotation anisotropies, improving the upper bound on the amplitude of the rotation angle spectrum by roughly an order of magnitude compared to the previous best constraints. Our results lead to an order of magnitude better constraint on the coupling constant of the Chern-Simons electromagnetic term $g_{a\gamma}\leq 7.2\times 10^{-2}/H_I$ (95% confidence) than the constraint derived from the B-mode spectrum, where $H_I$ is the inflationary Hubble scale. This constraint leads to a limit on the decay constant of $10^{-6}\lesssim f_a/M_{\rm pl}$ at mass range of $10^{-33}< m_a< 10^{-28}$ eV for $r=0.01$, assuming $g_{a\gamma}\sim\alpha/(2\pi f_a)$ with $\alpha$ denoting the fine structure constant. The upper bound on the amplitude of the primordial magnetic fields is 30nG (95% confidence) from the polarization rotation anisotropies., Comment: 6 pages, 2 figures

Published
2017

24. Ultra-thin large-aperture vacuum windows for millimeter wavelengths receivers

Author

Dierickx, Marion, primary, Barkats, Denis, primary, Kovac, John, primary, Pentacoff, Christopher, primary, Karkare, Kirit S., primary, Larsen, Nicole A., primary, Lau, King, primary, Leitch, Erik M., primary, Lueker, Martin, primary, Megerian, Koko G., primary, Moncelsi, Lorenzo, primary, Namikawa, Toshiya, primary, Nguyen, H. T., primary, O'Brient, Roger, primary, Ogburn, R. W., primary, Palladino, Stephen, primary, Pryke, Clement, primary, Racine, Benjamin, primary, Richter, Steffen, primary, Schillaci, Alessandro, primary, Schwarz, Robert, primary, Sheehy, Chris D., primary, Soliman, Ahmed, primary, St. Germaine, Tyler, primary, Staniszewski, Zachary K., primary, Steinbach, Bryan, primary, Sudiwala, Rashmi, primary, Teply, Grant P., primary, Thompson, Keith L., primary, Tolan, James E., primary, Tucker, Carole, primary, Turner, Anthony D., primary, Umilta, Caterina, primary, Ade, P. A., primary, Ahmed, Zeeshan, primary, Aikin, Randol W., primary, Alexander, Kate D., primary, Benton, Steve J., primary, Bischoff, Colin A., primary, Bock, James J., primary, Bowens-Rubin, Rachel, primary, Brevik, Justus A., primary, Buder, Immanuel, primary, Bullock, Eric, primary, Buza, Victor, primary, Connors, Jake, primary, Cornelison, James, primary, Crill, Brendan P., primary, Crumrine, Michael, primary, Duband, Lionel, primary, Dvorkin, Cora, primary, Filippini, Jeff P., primary, Fliescher, Stefan, primary, Grayson, James A., primary, Hall, Grantland, primary, Halpern, Mark, primary, Harrison, Sam A., primary, Hildebrandt, Sergi R., primary, Hilton, Gene C., primary, Hui, Howard, primary, Irwin, Kent D., primary, Kang, Jae Hwan, primary, Karpel, Ethan, primary, Kaufman, Jonathan P., primary, Keating, Brian G., primary, Kefeli, Sinan, primary, Kernasovskiy, Sarah A., primary, Kuo, Chao-Lin, primary, Vieregg, Abigail G., primary, Wandui, Albert, primary, Weber, Alexis C., primary, Wiebe, Don V., primary, Willmert, Justin, primary, Wong, Chin Lin, primary, Wu, Wai Ling K., primary, Yang, Eric, primary, Yoon, Ki Won, primary, and Zhang, Cheng, primary

Published
2018
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26. Analysis of Temperature-to-Polarization Leakage in BICEP3 and Keck CMB Data from 2016 to 2018

Author

Zmuidzinas, Jonas, Gao, Jian-Rong, St. Germaine, T., Ade, P. A. R., Ahmed, Z., Amiri, M., Barkats, D., Basu Thakur, R., Bischoff, C. A., Bock, J. J., Boenish, H., Bullock, E., Buza, V., Cheshire, J. R., Connors, J. A., Cornelison, J., Crumrine, M., Cukierman, A., Denison, E., Dierickx, M., Duband, L., Eiben, M., Fatigoni, S., Filippini, J. P., Fliescher, S., Goeckner-Wald, N., Goldfinger, D. C., Grayson, J. A., Grimes, P., Hall, G., Halpern, M., Harrison, S. A., Henderson, S., Hildebrandt, S. R., Hilton, G. C., Hubmayr, J., Hui, H., Irwin, K. D., Kang, J., Karkare, K. S., Karpel, E., Kefeli, S., Kernasovskiy, S. A., Kovac, J. M., Kuo, C. L., Lau, K., Leitch, E. M., Megerian, K. G., Minutolo, L., Moncelsi, L., Nakato, Y., Namikawa, T., Nguyen, H. T., O'brient, R., Ogburn, R. W., Palladino, S., Precup, N., Prouve, T., Pryke, C., Racine, B., Reintsema, C. D., Richter, S., Schillaci, A., Schmitt, B. L., Schwarz, R., Sheehy, C. D., Soliman, A., Steinbach, B., Sudiwala, R., Teply, G. P., Thompson, K. L., Tolan, J. E., Tucker, C., Turner, A. D., Umiltà, C., Vieregg, A. G., Wandui, A., Weber, A. C., Wiebe, D. V., Willmert, J., Wong, C. L., Wu, W. L. K., Yang, E., Yoon, K. W., Young, E., Yu, C., Zeng, L., Zhang, Cheng, and Zhang, S.

Published
2020
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27. Observing low elevation sky and the CMB Cold Spot with BICEP3 at the South Pole

Author

Zmuidzinas, Jonas, Gao, Jian-Rong, Kang, Jae Hwan, Ade, P. A. R., Ahmed, Z., Amiri, M., Barkats, D., Basu Thakur, R., Bischoff, C. A., Bock, J. J., Boenish, H., Bullock, E., Buza, Victor, Cheshire, J. R., Connors, J., Cornelison, J., Crumrine, M., Cukierman, A., Denison, E., Dierickx, M., Duband, L., Eiben, M., Fatigoni, S., Filippini, J. P., Fliescher, S., Goeckner-Wald, N., Goldfinger, D., Grayson, J. A., Grimes, P., Hall, G., Halpern, M., Harrison, S. A., Henderson, S., Hildebrandt, S. R., Hilton, G. C., Hubmayr, J., Hui, H., Irwin, K. D., Karkare, K. S., Karpel, E., Kefeli, S., Kernasovskiy, S. A., Kovac, J. M., Kuo, C.-L., Lau, K., Leitch, E. M., Megerian, K. G., Minutolo, L., Moncelsi, L., Nakato, Y., Namikawa, T., Nguyen, H. T., O'brient, R., Ogburn, R. W., Palladino, S., Precup, N., Prouve, T., Pryke, C., Racine, B., Reintsema, C. D., Richter, S., Schillaci, A., Schmitt, B. L., Schwarz, R., Sheehy, C. D., Soliman, A., St. Germaine, T., Steinbach, B., Sudiwala, R. V., Teply, G. P., Thompson, K. L., Tolan, J. E., Tucker, C., Turner, A. D., Umiltà, C., Vieregg, A. G., Wandui, A., Weber, A. C., Wiebe, D. V., Willmert, J., Wong, C. L., Wu, W. L. K., Yang, E., Yoon, K. W., Young, E., Yu, C., Zeng, L., Zhang, C., and Zhang, S.

Published
2020
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28. First direct limits on lightly ionizing particles with electric charge less than e/6

Author

Agnese, R., Anderson, A. J., Balakishiyeva, D., Basu Thakur, R., 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. F., 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, 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., (CDMS Collaboration), and UAM. Departamento de Física Teórica

Subjects
General Physics, Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, CDMS Collaboration, Direct detection, Dark matter, FOS: Physical sciences, General Physics and Astronomy, Parameter space, Electric charge, Mathematical Sciences, High Energy Physics - Experiment, Standard Model, Relativistic particle, Nuclear physics, High Energy Physics - Experiment (hep-ex), Engineering, physics.ins-det, High Energy Astrophysical Phenomena (astro-ph.HE), astro-ph.HE, Physics, Stacked detectors, hep-ex, Fractional charges, Física, Charge (physics), Instrumentation and Detectors (physics.ins-det), Ionizing particles, Physical Sciences, astro-ph.CO, Subatomic particle, Cryogenic Dark Matter Search, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Artículo escrito por muchos autores, sólo se referencian el primero, los autores que firman como Universidad Autónoma de Madrid y el grupo de colaboración en el caso de que aparezca en el artículo, 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, This work is supported in part by the National Science Foundation, by the U.S. Department of Energy, by NSERC Canada, and by MultiDark (Spanish MINECO). Fermilab is operated by the Fermi Research Alliance, LLC under Contract No. De-AC02-07CH11359. SLAC is operated under Contract No. DE-AC02-76SF00515 with the U.S. Department of Energy

Published
2014

29. BICEP3 focal plane design and detector performance

Author

Hui, H., additional, Ade, P. A. R., additional, Ahmed, Z., additional, Alexander, K. D., additional, Amiri, M., additional, Barkats, D., additional, Benton, S. J., additional, Bischoff, C. A., additional, Bock, J. J., additional, Boenish, H., additional, Bowens-Rubin, R., additional, Buder, I., additional, Bullock, E., additional, Buza, V., additional, Connors, J., additional, Filippini, J. P., additional, Fliescher, S., additional, Grayson, J. A., additional, Halpern, M., additional, Harrison, S., additional, Hilton, G. C., additional, Hristov, V. V., additional, Irwin, K. D., additional, Kang, J., additional, Karkare, K. S., additional, Karpel, E., additional, Kefeli, S., additional, Kernasovskiy, S. A., additional, Kovac, J. M., additional, Kuo, C. L., additional, Leitch, E. M., additional, Lueker, M., additional, Megerian, K. G., additional, Monticue, V., additional, Namikawa, T., additional, Netterfield, C. B., additional, Nguyen, H. T., additional, O'Brient, R., additional, Ogburn, R. W., additional, Pryke, C., additional, Reintsema, C. D., additional, Richter, S., additional, Schwarz, R., additional, Sorensen, C., additional, Sheehy, C. D., additional, Staniszewski, Z. K., additional, Steinbach, B., additional, Teply, G. P., additional, Thompson, K. L., additional, Tolan, J. E., additional, Tucker, C., additional, Turner, A. D., additional, Vieregg, A. G., additional, Wandui, A., additional, Weber, A. C., additional, Wiebe, D. V., additional, Willmert, J., additional, Wu, W. L. K., additional, and Yoon, K. W., additional

Published
2016
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30. Optical characterization of the BICEP3 CMB polarimeter at the South Pole

Author

Karkare, K. S., additional, Ade, P. A. R., additional, Ahmed, Z., additional, Alexander, K. D., additional, Amiri, M., additional, Barkats, D., additional, Benton, S. J., additional, Bischoff, C. A., additional, Bock, J. J., additional, Boenish, H., additional, Bowens-Rubin, R., additional, Buder, I., additional, Bullock, E., additional, Buza, V., additional, Connors, J., additional, Filippini, J. P., additional, Fliescher, S. T., additional, Grayson, J. A., additional, Halpern, M., additional, Harrison, S. A., additional, Hilton, G. C., additional, Hristov, V. V., additional, Hui, H., additional, Irwin, K. D., additional, Kang, J. H., additional, Karpel, E., additional, Kefeli, S., additional, Kernasovskiy, S. A., additional, Kovac, J. M., additional, Kuo, C. L., additional, Leitch, E. M., additional, Lueker, M., additional, Megerian, K. G., additional, Monticue, V., additional, Namikawa, T., additional, Netterfield, C. B., additional, Nguyen, H. T., additional, O'Brient, R., additional, Ogburn, R. W., additional, Pryke, C. L., additional, Reintsema, C. D., additional, Richter, S., additional, St. Germaine, M. T., additional, Schwarz, R., additional, Sheehy, C. D., additional, Staniszewski, Z. K., additional, Steinbach, B., additional, Teply, G. P., additional, Thompson, K. L., additional, Tolan, J. E., additional, Tucker, C., additional, Turner, A. D., additional, Vieregg, A. G., additional, Wandui, A., additional, Weber, A., additional, Willmert, J., additional, Wong, C. L., additional, Wu, W. L. K., additional, and Yoon, K. W., additional

Published
2016
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31. BICEP3 performance overview and planned Keck Array upgrade

Author

Grayson, J. A., additional, Ade, P. A. R., additional, Ahmed, Z., additional, Alexander, K. D., additional, Amiri, M., additional, Barkats, D., additional, Benton, S. J., additional, Bischoff, C. A., additional, Bock, J. J., additional, Boenish, H., additional, Bowens-Rubin, R., additional, Buder, I., additional, Bullock, E., additional, Buza, V., additional, Connors, J., additional, Filippini, J. P., additional, Fliescher, S., additional, Halpern, M., additional, Harrison, S., additional, Hilton, G. C., additional, Hristov, V. V., additional, Hui, H., additional, Irwin, K. D., additional, Kang, J., additional, Karkare, K. S., additional, Karpel, E., additional, Kefeli, S., additional, Kernasovskiy, S. A., additional, Kovac, J. M., additional, Kuo, C. L., additional, Leitch, E. M., additional, Lueker, M., additional, Megerian, K. G., additional, Monticue, V., additional, Namikawa, T., additional, Netterfield, C. B., additional, Nguyen, H. T., additional, O'Brient, R., additional, Ogburn, R. W., additional, Pryke, C., additional, Reintsema, C. D., additional, Richter, S., additional, Schwarz, R., additional, Sorenson, C., additional, Sheehy, C. D., additional, Staniszewski, Z. K., additional, Steinbach, B., additional, Teply, G. P., additional, Thompson, K. L., additional, Tolan, J. E., additional, Tucker, C., additional, Turner, A. D., additional, Vieregg, A. G., additional, Wandui, A., additional, Weber, A. C., additional, Wiebe, D. V., additional, Willmert, J., additional, Wu, W. L. K., additional, and Yoon, K. W., additional

Published
2016
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32. First Direct Limits on Lightly Ionizing Particles with Electric Charge Less than e/6

Author

Massachusetts Institute of Technology. Department of Physics, Anderson, Adam Jonathan, Billard, Julien, Figueroa-Feliciano, Enectali, Hertel, Scott Alexander, Leder, Alexander Friedrich, McCarthy, Kevin Ahmad, Agnese, R., Balakishiyeva, D., Basu Thakur, R., Bauer, D. A., 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. F., Doughty, T., Esteban, L., Fallows, S., Godfrey, G. L., Golwala, S. R., Hall, J., Harris, H. R., 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., Mirabolfathi, N., Moffatt, R. A., Moore, D. C., Nelson, H., Nelson, R. H., Ogburn, R. W., 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., Massachusetts Institute of Technology. Department of Physics, Anderson, Adam Jonathan, Billard, Julien, Figueroa-Feliciano, Enectali, Hertel, Scott Alexander, Leder, Alexander Friedrich, McCarthy, Kevin Ahmad, Agnese, R., Balakishiyeva, D., Basu Thakur, R., Bauer, D. A., 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. F., Doughty, T., Esteban, L., Fallows, S., Godfrey, G. L., Golwala, S. R., Hall, J., Harris, H. R., 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., Mirabolfathi, N., Moffatt, R. A., Moore, D. C., Nelson, H., Nelson, R. H., Ogburn, R. W., 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., 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., National Science Foundation (U.S.), United States. Dept. of Energy, Natural Sciences and Engineering Research Council of Canada, Spain. Ministerio de Economia y Competividad (MultiDark)

Published
2015

33. Initial Performance of Bicep3: A Degree Angular Scale 95 GHz Band Polarimeter

Author

Wu, W. L. K., primary, Ade, P. A. R., additional, Ahmed, Z., additional, Alexander, K. D., additional, Amiri, M., additional, Barkats, D., additional, Benton, S. J., additional, Bischoff, C. A., additional, Bock, J. J., additional, Bowens-Rubin, R., additional, Buder, I., additional, Bullock, E., additional, Buza, V., additional, Connors, J. A., additional, Filippini, J. P., additional, Fliescher, S., additional, Grayson, J. A., additional, Halpern, M., additional, Harrison, S. A., additional, Hilton, G. C., additional, Hristov, V. V., additional, Hui, H., additional, Irwin, K. D., additional, Kang, J., additional, Karkare, K. S., additional, Karpel, E., additional, Kefeli, S., additional, Kernasovskiy, S. A., additional, Kovac, J. M., additional, Kuo, C. L., additional, Megerian, K. G., additional, Netterfield, C. B., additional, Nguyen, H. T., additional, O’Brient, R., additional, Ogburn, R. W., additional, Pryke, C., additional, Reintsema, C. D., additional, Richter, S., additional, Sorensen, C., additional, Staniszewski, Z. K., additional, Steinbach, B., additional, Sudiwala, R. V., additional, Teply, G. P., additional, Thompson, K. L., additional, Tolan, J. E., additional, Tucker, C. E., additional, Turner, A. D., additional, Vieregg, A. G., additional, Weber, A. C., additional, Wiebe, D. V., additional, Willmert, J., additional, and Yoon, K. W., additional

Published
2015
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34. BLASTbus electronics: general-purpose readout and control for balloon-borne experiments

Author

Stepp, Larry M., Gilmozzi, Roberto, Hall, Helen J., Benton, S. J., Ade, P. A., Amiri, M., Angilè, F. E., Bock, J. J., Bond, J. R., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Crill, B. P., Devlin, M. J., Dober, B., Doré, O. P., Farhang, M., Filippini, J. P., Fissel, L. M., Fraisse, A. A., Fukui, Y., Galitzki, N., Gambrel, A. E., Gandilo, N. N., Golwala, S. R., Gudmundsson, J. E., Halpern, M., Hasselfield, M., Hilton, G. C., Holmes, W. A., Hristov, V. V., Irwin, K. D., Jones, W. C., Kermish, Z. D., Klein, J., Korotkov, A. L., Kuo, C. L., MacTavish, C. J., Mason, P. V., Matthews, T. G., Megerian, K. G., Moncelsi, L., Morford, T. A., Mroczkowski, T. K., Nagy, J. M., Netterfield, C. B., Novak, G., Nutter, D., O'Brient, R., Ogburn, R. W., Pascale, E., Poidevin, F., Rahlin, A. S., Reintsema, C. D., Ruhl, J. E., Runyan, M. C., Savini, G., Scott, D., Shariff, J. A., Soler, J. D., Thomas, N. E., Trangsrud, A., Truch, M. D., Tucker, C. E., Tucker, G. S., Tucker, R. S., Turner, A. D., Ward-Thompson, D., Weber, A. C., Wiebe, D. V., Young, E. Y., Stepp, Larry M., Gilmozzi, Roberto, Hall, Helen J., Benton, S. J., Ade, P. A., Amiri, M., Angilè, F. E., Bock, J. J., Bond, J. R., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Crill, B. P., Devlin, M. J., Dober, B., Doré, O. P., Farhang, M., Filippini, J. P., Fissel, L. M., Fraisse, A. A., Fukui, Y., Galitzki, N., Gambrel, A. E., Gandilo, N. N., Golwala, S. R., Gudmundsson, J. E., Halpern, M., Hasselfield, M., Hilton, G. C., Holmes, W. A., Hristov, V. V., Irwin, K. D., Jones, W. C., Kermish, Z. D., Klein, J., Korotkov, A. L., Kuo, C. L., MacTavish, C. J., Mason, P. V., Matthews, T. G., Megerian, K. G., Moncelsi, L., Morford, T. A., Mroczkowski, T. K., Nagy, J. M., Netterfield, C. B., Novak, G., Nutter, D., O'Brient, R., Ogburn, R. W., Pascale, E., Poidevin, F., Rahlin, A. S., Reintsema, C. D., Ruhl, J. E., Runyan, M. C., Savini, G., Scott, D., Shariff, J. A., Soler, J. D., Thomas, N. E., Trangsrud, A., Truch, M. D., Tucker, C. E., Tucker, G. S., Tucker, R. S., Turner, A. D., Ward-Thompson, D., Weber, A. C., Wiebe, D. V., and Young, E. Y.

Abstract

We present the second generation BLASTbus electronics. The primary purposes of this system are detector readout, attitude control, and cryogenic housekeeping, for balloon-borne telescopes. Readout of neutron transmutation doped germanium (NTD-Ge) bolometers requires low noise and parallel acquisition of hundreds of analog signals. Controlling a telescope's attitude requires the capability to interface to a wide variety of sensors and motors, and to use them together in a fast, closed loop. To achieve these different goals, the BLASTbus system employs a flexible motherboard-daughterboard architecture. The programmable motherboard features a digital signal processor (DSP) and field-programmable gate array (FPGA), as well as slots for three daughterboards. The daughterboards provide the interface to the outside world, with versions for analog to digital conversion, and optoisolated digital input/output. With the versatility afforded by this design, the BLASTbus also finds uses in cryogenic, thermometry, and power systems. For accurate timing control to tie everything together, the system operates in a fully synchronous manner. BLASTbus electronics have been successfully deployed to the South Pole, and own on stratospheric balloons.

Published
2014

36. BICEP2 and Keck array: upgrades and improved beam characterization

Author

Buder, I., additional, Ade, P. A. R., additional, Ahmed, Z., additional, Aikin, R. W., additional, Alexander, K. D., additional, Amiri, M., additional, Barkats, D., additional, Benton, S. J., additional, Bischoff, C. A., additional, Bock, J. J., additional, Bonetti, J. A., additional, Brevik, J. A., additional, Bullock, E., additional, Burger, B., additional, Crill, B. P., additional, Davis, G., additional, Dowell, C. D., additional, Duband, L., additional, Filippini, J. P., additional, Fliescher, S., additional, Golwala, S. R., additional, Gordon, M. S., additional, Halpern, M., additional, Hasselfield, M., additional, Hildebrandt, S. R., additional, Hilton, G. C., additional, Hristov, V. V., additional, Hui, H., additional, Irwin, K. D., additional, Karkare, K. S., additional, Kaufman, J. P., additional, Keating, B. G., additional, Kefeli, S., additional, Kernasovskiy, S. A., additional, Kovac, J. M., additional, Kuo, C. L., additional, Leitch, E. M., additional, Lueker, M., additional, Mason, P., additional, Megerian, K. G., additional, Netterfield, C. B., additional, Nguyen, H. T., additional, O’Brient, R., additional, Ogburn, R. W., additional, Orlando, A., additional, Pryke, C., additional, Reintsema, C. D., additional, Richter, S., additional, Schwarz, R., additional, Sheehy, C. D., additional, Staniszewski, Z. K., additional, Sudiwala, R. V., additional, Teply, G. P., additional, Thompson, K. L., additional, Tolan, J. E., additional, Turner, A. D., additional, Vieregg, A. G., additional, Weber, A. C., additional, Wiebe, D. V., additional, Wilson, P., additional, Wong, C. L., additional, and Yoon, K. W., additional

Published
2014
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37. BICEP3: a 95GHz refracting telescope for degree-scale CMB polarization

Author

Ahmed, Z., additional, Amiri, M., additional, Benton, S. J., additional, Bock, J. J., additional, Bowens-Rubin, R., additional, Buder, I., additional, Bullock, E., additional, Connors, J., additional, Filippini, J. P., additional, Grayson, J. A., additional, Halpern, M., additional, Hilton, G. C., additional, Hristov, V. V., additional, Hui, H., additional, Irwin, K. D., additional, Kang, J., additional, Karkare, K. S., additional, Karpel, E., additional, Kovac, J. M., additional, Kuo, C. L., additional, Netterfield, C. B., additional, Nguyen, H. T., additional, O'Brient, R., additional, Ogburn, R. W., additional, Pryke, C., additional, Reintsema, C. D., additional, Richter, S., additional, Thompson, K. L., additional, Turner, A. D., additional, Vieregg, A. G., additional, Wu, W. L. K., additional, and Yoon, K. W., additional

Published
2014
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38. Keck array and BICEP3: spectral characterization of 5000+ detectors

Author

Karkare, K. S., additional, Ade, P. A. R., additional, Ahmed, Z., additional, Aikin, R. W., additional, Alexander, K. D., additional, Amiri, M., additional, Barkats, D., additional, Benton, S. J., additional, Bischoff, C. A., additional, Bock, J. J., additional, Bonetti, J. A., additional, Brevik, J. A., additional, Buder, I., additional, Bullock, E. W., additional, Burger, B., additional, Connors, J., additional, Crill, B. P., additional, Davis, G., additional, Dowell, C. D., additional, Duband, L., additional, Filippini, J. P., additional, Fliescher, S. T., additional, Golwala, S. R., additional, Gordon, M. S., additional, Grayson, J. A., additional, Halpern, M., additional, Hasselfield, M., additional, Hildebrandt, S. R., additional, Hilton, G. C., additional, Hristov, V. V., additional, Hui, H., additional, Irwin, K. D., additional, Kang, J. H., additional, Karpel, E., additional, Kefeli, S., additional, Kernasovskiy, S. A., additional, Kovac, J. M., additional, Kuo, C. L., additional, Leitch, E. M., additional, Lueker, M., additional, Mason, P., additional, Megerian, K. G., additional, Netterfield, C. B., additional, Nguyen, H. T., additional, O'Brient, R., additional, Ogburn, R. W., additional, Pryke, C. L., additional, Reintsema, C. D., additional, Richter, S., additional, Schwarz, R., additional, Sheehy, C. D., additional, Staniszewski, Z. K., additional, Sudiwala, R. V., additional, Teply, G. P., additional, Thompson, K. L., additional, Tolan, J. E., additional, Turner, A. D., additional, Vieregg, A., additional, Weber, A., additional, Wong, C. L., additional, Wu, W. L. K., additional, and Yoon, K. W., additional

Published
2014
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39. BLASTbus electronics: general-purpose readout and control for balloon-borne experiments

Author

Benton, S. J., additional, Ade, P. A., additional, Amiri, M., additional, Angilè, F. E., additional, Bock, J. J., additional, Bond, J. R., additional, Bryan, S. A., additional, Chiang, H. C., additional, Contaldi, C. R., additional, Crill, B. P., additional, Devlin, M. J., additional, Dober, B., additional, Doré, O. P., additional, Farhang, M., additional, Filippini, J. P., additional, Fissel, L. M., additional, Fraisse, A. A., additional, Fukui, Y., additional, Galitzki, N., additional, Gambrel, A. E., additional, Gandilo, N. N., additional, Golwala, S. R., additional, Gudmundsson, J. E., additional, Halpern, M., additional, Hasselfield, M., additional, Hilton, G. C., additional, Holmes, W. A., additional, Hristov, V. V., additional, Irwin, K. D., additional, Jones, W. C., additional, Kermish, Z. D., additional, Klein, J., additional, Korotkov, A. L., additional, Kuo, C. L., additional, MacTavish, C. J., additional, Mason, P. V., additional, Matthews, T. G., additional, Megerian, K. G., additional, Moncelsi, L., additional, Morford, T. A., additional, Mroczkowski, T. K., additional, Nagy, J. M., additional, Netterfield, C. B., additional, Novak, G., additional, Nutter, D., additional, O'Brient, R., additional, Ogburn, R. W., additional, Pascale, E., additional, Poidevin, F., additional, Rahlin, A. S., additional, Reintsema, C. D., additional, Ruhl, J. E., additional, Runyan, M. C., additional, Savini, G., additional, Scott, D., additional, Shariff, J. A., additional, Soler, J. D., additional, Thomas, N. E., additional, Trangsrud, A., additional, Truch, M. D., additional, Tucker, C. E., additional, Tucker, G. S., additional, Tucker, R. S., additional, Turner, A. D., additional, Ward-Thompson, D., additional, Weber, A. C., additional, Wiebe, D. V., additional, and Young, E. Y., additional

Published
2014
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40. 2017 upgrade and performance of BICEP3: a 95GHz refracting telescope for degree-scale CMB polarization

Author

Zmuidzinas, Jonas, Gao, Jian-Rong, Kang, Jae Hwan, Ade, P. A. R., Ahmed, Z., Aikin, R. W., Alexander, K. D., Barkats, D., Benton, S. J., Bischoff, C. A., Bock, J. J., Boenish, H., Bowens-Rubin, R., Brevik, J. A., Buder, I., Bullock, E., Buza, V., Connors, J., Cornelison, J., Crill, B. P., Crumrine, M., Dierickx, M., Duband, L., Dvorkin, C., Filippini, J. P., Fliescher, S., Grayson, J. A., Hall, G., Halpern, M., Harrison, S., Hildebrandt, S. R., Hilton, G. C., Hui, H., Irwin, K. D., Karkare, K. S., Karpel, E., Kaufman, J. P., Keating, B. G., Kefeli, S., Kernasovskiy, S. A., Kovac, J. M., Kuo, C. L., Larsen, N. A., Lau, K., Leitch, E. M., Lueker, M., Megerian, K. G., Moncelsi, L., Namikawa, T., Netterfield, B., Nguyen, H. T., O'Brient, R., Ogburn, R. W., Palladino, S., Pryke, C., Racine, B., Richter, S., Schillaci, A., Schwarz, R., Sheehy, C. D., Soliman, A., St. Germaine, T., Staniszewski, Z. K., Steinbach, B., Sudiwala, R. V., Teply, G. P., Thompson, K. L., Tolan, J. E., Tucker, C., Turner, A. D., Umiltà, C., Vieregg, A. G., Wandui, A., Weber, A. C., Wiebe, D. V., Willmert, J., Wong, C. L., Wu, W. L. K., Yang, H., K, Yoon, W., and Zhang, C.

Published
2018
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41. Ultra-thin large-aperture vacuum windows for millimeter wavelengths receivers

Author

Zmuidzinas, Jonas, Gao, Jian-Rong, Barkats, Denis, Dierickx, Marion I., Kovac, John M., Pentacoff, Chris, Ade, P. A. R., Ahmed, Z., Aikin, R. W., Alexander, K. D., Benton, S. J., Bischoff, C. A., Bock, J. J., Bowens-Rubin, R., Brevik, J. A., Buder, I., Bullock, E., Buza, V., Connors, J., Cornelison, J., Crill, B. P., Crumrine, M., Duband, L., Dvorkin, C., Filippini, J. P., Fliescher, S., Grayson, J. A., Hall, G., Halpern, M., Harrison, S. A., Hildebrandt, S. R., Hilton, G. C., Hui, H., Irwin, K. D., Kang, J., Karkare, K. S., Karpel, E., Kaufman, J. P., Keating, B. G., Kefeli, S., Kernasovskiy, S. A., Kuo, C. L., Lau, K., Larsen, N. A., Leitch, E. M., Lueker, M., Megerian, K. G., Moncelsi, L., Namikawa, T., Nguyen, H. T., O'Brient, R., Ogburn, R. W., Palladino, S., Pryke, C., Racine, B., Richter, S., Schwarz, R., Schillaci, A., Sheehy, C. D., Soliman, A., St. Germaine, T., Staniszewski, Z. K., Steinbach, B., Sudiwala, R. V., Teply, G. P., Thompson, K. L., Tolan, J. E., Tucker, C., Turner, A. D., Umiltà, C., Vieregg, A. G., Wandui, A., Weber, A. C., Wiebe, D. V., Willmert, J., Wong, C. L., Wu, W. L. K., Yang, H., Yoon, K. W., and Zhang, C.

Published
2018
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42. Design and performance of wide-band corrugated walls for the BICEP Array detector modules at 30/40 GHz

Author

Zmuidzinas, Jonas, Gao, Jian-Rong, Soliman, A., Ade, P. A. R., Ahmed, Z., Aikin, R. W., Alexander, K. D., Barkats, D., Benton, S. J., Bischoff, C. A., Bock, J. J., Bowens-Rubin, R., Brevik, J. A., Buder, I., Bullock, E., Buza, V., Connors, J., Cornelison, J., Crill, B. P., Crumrine, M., Dierickx, M., Duband, L., Dvorkin, C., Filippini, J. P., Fliescher, S., Grayson, J. A., Hall, G., Halpern, M., Harrison, S., Hildebrandt, S. R., Hilton, G. C., Hui, H., Irwin, K. D., Kang, J. H., Karkare, K. S., Karpel, E., Kaufman, J. P., Keating, B. G., Kefeli, S., Kernasovskiy, S. A., Kovac, J. M., Kuo, C. L., Lau, K., Larsen, N. A., Leitch, E. M., Lueker, M., Megerian, K. G., Moncelsi, L., Namikawa, T., Netterfield, C. B., Nguyen, H. T., O'Brient, R., Ogburn, R. W., Palladino, S., Pryke, C., Racine, B., Richter, S., Schwarz, R., Schillaci, A., Sheehy, C. D., St. Germaine, T., Staniszewski, Z. K., Steinbach, B., Sudiwala, R., Teply, G. P., Thompson, K. L., Tolan, J. E., Tucker, C., Turner, A. D., Umiltà, C., Van Zyl, J., Vieregg, A. G., Wandui, A., Weber, A. C., Wiebe, D. V., Willmert, J., Wong, C. L., Wu, W. L. K., Yang, E., Yoon, K. W., and Zhang, C.

Published
2018
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43. BICEP Array cryostat and mount design

Author

Zmuidzinas, Jonas, Gao, Jian-Rong, Crumrine, Michael, Ade, P. A. R., Ahmed, Z., Aikin, R. W., Alexander, K. D., Barkats, D., Benton, S. J., Bischoff, C. A., Bock, J. J., Bowens-Rubin, R., Brevik, J. A., Buder, I., Bullock, E., Buza, V., Connors, J., Cornelison, J., Crill, B. P., Dierickx, M., Duband, L., Dvorkin, C., Filippini, J. P., Fliescher, S., Grayson, J. A., Hall, G., Halpern, M., Harrison, S. A., Hildebrandt, S. R., Hilton, G. C., Hui, H., Irwin, K. D., Kang, J. H., Karkare, K. S., Karpel, E., Kaufman, J. P., Keating, B. G., Kefeli, S., Kernasovskiy, S. A., Kovac, J. M., Kuo, C. L., Larsen, N. A., Lau, K., Leitch, E. M., Lueker, M. V., Megerian, K. G., Moncelsi, L., Namikawa, T., Netterfield, C. B., Nguyen, H. T., O'Brient, R., Ogburn, R. W., Palladino, S., Pryke, C., Racine, B., Richter, S., Schwarz, R., Schillaci, A., Sheehy, C. D., Soliman, A., St. Germaine, T., Staniszewski, Z. K., Steinbach, B., Sudiwala, R. V., Teply, G. P., Thompson, K. L., Tolan, J. E., Tucker, C. E., Turner, A. D., Umiltà, C., Vieregg, A. G., Wandui, A., Weber, A. C., Wiebe, D. V., Willmert, J., Wong, C. L., Wu, W. L. K., Yang, E., Yoon, K. W., and Zhang, C.

Published
2018
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44. BICEP2 and Keck Array operational overview and status of observations

Author

Holland, Wayne S., Zmuidzinas, Jonas, Ogburn, R. W., IV, Aikin, R. W., Bock, J. J., Brevik, J. A., Dowell, C. D., Filippini, J. P., Golwala, S. R., Hristov, V. V., Hui, H., Lueker, M., Nguyen, H. T., O'Brient, R., Runyan, M. C., Staniszewski, Z. K., Teply, G. P., Holland, Wayne S., Zmuidzinas, Jonas, Ogburn, R. W., IV, Aikin, R. W., Bock, J. J., Brevik, J. A., Dowell, C. D., Filippini, J. P., Golwala, S. R., Hristov, V. V., Hui, H., Lueker, M., Nguyen, H. T., O'Brient, R., Runyan, M. C., Staniszewski, Z. K., and Teply, G. P.

Abstract

The Bicep2 and Keck Array experiments are designed to measure the polarization of the cosmic microwave background (CMB) on angular scales of 2-4 degrees (ℓ = 50–100). This is the region in which the B-mode signal, a signature prediction of cosmic inflation, is expected to peak. Bicep2 was deployed to the South Pole at the end of 2009 and is in the middle of its third year of observing with 500 polarization-sensitive detectors at 150 GHz. The Keck Array was deployed to the South Pole at the end of 2010, initially with three receivers—each similar to Bicep2. An additional two receivers have been added during the 2011-12 summer. We give an overview of the two experiments, report on substantial gains in the sensitivity of the two experiments after post-deployment optimization, and show preliminary maps of CMB polarization from Bicep2.

Published
2012

45. Antenna-coupled TES bolometers for the Keck Array, Spider, and Polar-1

Author

Holland, Wayne S., Zmuidzinas, Jonas, O'Brient, R., Aikin, R. W., Bock, J. J., Brevik, J. A., Dowell, C. D., Filippini, J. P., Golwala, S. R., Hui, H., Lueker, M., Moncelsi, L., Nguyen, H. T., Ogburn, R. W., IV, Runyan, M. C., Staniszewski, Z., Teply, G., Tucker, R. S., Holland, Wayne S., Zmuidzinas, Jonas, O'Brient, R., Aikin, R. W., Bock, J. J., Brevik, J. A., Dowell, C. D., Filippini, J. P., Golwala, S. R., Hui, H., Lueker, M., Moncelsi, L., Nguyen, H. T., Ogburn, R. W., IV, Runyan, M. C., Staniszewski, Z., Teply, G., and Tucker, R. S.

Abstract

Between the BICEP2 and Keck Array experiments, we have deployed over 1500 dual polarized antenna coupled bolometers to map the Cosmic Microwave Background’s polarization. We have been able to rapidly deploy these detectors because they are completely planar with an integrated phased-array antenna. Through our experience in these experiments, we have learned of several challenges with this technology- specifically the beam synthesis in the antenna- and in this paper we report on how we have modified our designs to mitigate these challenges. In particular, we discus differential steering errors between the polarization pairs’ beam centroids due to microstrip cross talk and gradients of penetration depth in the niobium thin films of our millimeter wave circuits. We also discuss how we have suppressed side lobe response with a Gaussian taper of our antenna illumination pattern. These improvements will be used in Spider, Polar-1, and this season’s retrofit of Keck Array.

Published
2012

46. The BICEP2 CMB polarization experiment

Author

Holland, Wayne S., Zmuidzinas, Jonas, Ogburn, R. W., IV, Aikin, R. W., Bock, J. J., Bonetti, J. A., Brevik, J. A., Dowell, C. D., Filippini, J. P., Golwala, S. R., Hristov, V. V., Lange, A. E., Orlando, A., Runyan, M. C., Staniszewski, Z. K., Teply, G. P., Holland, Wayne S., Zmuidzinas, Jonas, Ogburn, R. W., IV, Aikin, R. W., Bock, J. J., Bonetti, J. A., Brevik, J. A., Dowell, C. D., Filippini, J. P., Golwala, S. R., Hristov, V. V., Lange, A. E., Orlando, A., Runyan, M. C., Staniszewski, Z. K., and Teply, G. P.

Abstract

The Bicep2 telescope is designed to measure the polarization of the cosmic microwave background on angular scales near 2-4 degrees, near the expected peak of the B-mode polarization signal induced by primordial gravitational waves from inflation. Bicep2 follows the success of Bicep, which has set the most sensitive current limits on B-modes on 2-4 degree scales. The experiment adopts a new detector design in which beam-defining slot antennas are coupled to TES detectors photolithographically patterned in the same silicon wafer, with multiplexing SQUID readout. Bicep2 takes advantage of this design's higher focal-plane packing density, ease of fabrication, and multiplexing readout to field more detectors than Bicep1, improving mapping speed by nearly a factor of 10. Bicep2 was deployed to the South Pole in November 2009 with 500 polarization-sensitive detectors at 150 GHz, and is funded for two seasons of observation. The first months' data demonstrate the performance of the Caltech/JPL antenna-coupled TES arrays, and two years of observation with Bicep2 will achieve unprecedented sensitivity to B-modes on degree angular scales.

Published
2010

47. Antenna-coupled TES Bolometer Arrays for BICEP2/Keck and SPIDER

Author

Holland, Wayne S., Zmuidzinas, Jonas, Orlando, A., Aikin, R. W., Bock, J. J., Brevik, J. A., Filippini, J. P., Golwala, S. R., Lange, A. E., Ogburn, R. W., Runyan, M. C., Sudiwala, R., Teply, G., Trangsrud, A. R., Holland, Wayne S., Zmuidzinas, Jonas, Orlando, A., Aikin, R. W., Bock, J. J., Brevik, J. A., Filippini, J. P., Golwala, S. R., Lange, A. E., Ogburn, R. W., Runyan, M. C., Sudiwala, R., Teply, G., and Trangsrud, A. R.

Abstract

BICEP2/Keck and SPIDER are cosmic microwave background (CMB) polarimeters targeting the B-mode polarization induced by primordial gravitational waves from inflation. They will be using planar arrays of polarization sensitive antenna-coupled TES bolometers, operating at frequencies between 90 GHz and 220 GHz. At 150 GHz each array consists of 64 polarimeters and four of these arrays are assembled together to make a focal plane, for a total of 256 dual-polarization elements (512 TES sensors). The detector arrays are integrated with a time-domain SQUID multiplexer developed at NIST and read out using the multi-channel electronics (MCE) developed at the University of British Columbia. Following our progress in improving detector parameters uniformity across the arrays and fabrication yield, our main effort has focused on improving detector arrays optical and noise performances, in order to produce science grade focal planes achieving target sensitivities. We report on changes in detector design implemented to optimize such performances and following focal plane arrays characterization. BICEP2 has deployed a first 150 GHz science grade focal plane to the South Pole in December 2009.

Published
2010

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

Author

Cabrera, B., Miller, A., Young, B. A., Mirabolfathi, N., Ahmed, Z., Filippini, J., Golwala, S. R., Moore, D., Ogburn, R. W., Wang, G., Cabrera, B., Miller, A., Young, B. A., Mirabolfathi, N., Ahmed, Z., Filippini, J., Golwala, S. R., Moore, D., Ogburn, R. W., and Wang, G.

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.

Published
2009

49. The Cryogenic Dark Matter Search (CDMS) : Present Status and Future

Author

Marshak, M. L., Brink, P. L., Ahmed, Z., Filippini, J., Golwala, S. R., Moore, D., Ogburn, R. W., Wang, G., Marshak, M. L., Brink, P. L., Ahmed, Z., Filippini, J., Golwala, S. R., Moore, D., Ogburn, R. W., and Wang, G.

Abstract

The CDMS collaboration utilizes Ge detectors for their Weakly Interacting Massive Particle (WIMP) search at the Soudan mine, Minnesota. The final data run of CDMS II is complete and a detector upgrade for SuperCDMS has commenced. A SuperTower of five 1‐inch thick Ge crystals has been installed and undergoing commissioning. Its surface‐event rejection capability should allow SuperCDMS to continue to run background free for the next proposed phases: 15 kg Ge deployment at Soudan, and up to 150 kg Ge deployment at SNOLAB. Recent detector advances to allow a 1 tonne Ge experiment are also discussed.

Published
2009

50. SuperCDMS Detector Fabrication Advances

Author

Cabrera, B., Miller, A., Young, B. A., Brink, P. L., Ahmed, Z., Filippini, J., Golwala, S. R., Moore, D., Ogburn, R. W., Wang, G., Cabrera, B., Miller, A., Young, B. A., Brink, P. L., Ahmed, Z., Filippini, J., Golwala, S. R., Moore, D., Ogburn, R. W., and Wang, G.

Abstract

For its dark matter search the SuperCDMS collaboration has developed new Ge detectors using the same athermal phonon sensors and ionization measurement technology of CDMS II but with larger mass, superior sensor performance and increased fabrication efficiency. The improvements in fabrication are described, a comparison of CDMS II and SuperCDMS detector production yield is reported, and future scalability addressed.

Published
2009

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