Improved WIMP-search reach of the CDMS II germanium data
CDMS II data from the five-tower runs at the Soudan Underground Laboratory were reprocessed with an improved charge-pulse fitting algorithm. Two new analysis techniques to reject surface-event backgrounds were applied to the 612 kg days germanium-detector weakly interacting massive particle (WIMP)-s...
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/99216 https://orcid.org/0000-0003-1429-1104 https://orcid.org/0000-0002-4435-4623 https://orcid.org/0000-0001-9285-5556 |
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| author | Agnese, R. Asai, M. Balakishiyeva, D. Barker, D. Basu Thakur, R. Bauer, D. A. Borgland, A. Bowles, M. A. Brandt, D. Brink, P. L. Bunker, R. Cabrera, B. Caldwell, D. O. Calkins, R. Cerdeño, 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. Jardin, D. M. Jastram, A. Kamaev, O. Kara, B. Kelsey, M. H. Kennedy, A. Kiveni, M. Koch, K. Loer, B. Lopez Asamar, E. Lukens, P. Mahapatra, R. Mandic, V. Mirabolfathi, N. Moffatt, R. A. Oser, S. M. Page, K. Page, W. A. Partridge, R. Pepin, M. Phipps, A. Prasad, K. Pyle, M. Qiu, H. Rau, W. Redl, P. Reisetter, A. Ricci, Y. Rogers, H. E. Saab, T. Sadoulet, B. Sander, J. Schneck, K. Schnee, R. W. Scorza, S. Serfass, B. Shank, B. Speller, D. Toback, D. Upadhyayula, S. Villano, A. N. Welliver, B. Wilson, J. S. Wright, D. H. Yang, X. Yellin, S. Yen, J. J. Young, B. A. Zhang, J. Anderson, Adam Jonathan Billard, Julien Figueroa-Feliciano, Enectali Hertel, Scott A. Leder, Alexander Friedrich McCarthy, Kevin Ahmad |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Agnese, R. Asai, M. Balakishiyeva, D. Barker, D. Basu Thakur, R. Bauer, D. A. Borgland, A. Bowles, M. A. Brandt, D. Brink, P. L. Bunker, R. Cabrera, B. Caldwell, D. O. Calkins, R. Cerdeño, 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. Jardin, D. M. Jastram, A. Kamaev, O. Kara, B. Kelsey, M. H. Kennedy, A. Kiveni, M. Koch, K. Loer, B. Lopez Asamar, E. Lukens, P. Mahapatra, R. Mandic, V. Mirabolfathi, N. Moffatt, R. A. Oser, S. M. Page, K. Page, W. A. Partridge, R. Pepin, M. Phipps, A. Prasad, K. Pyle, M. Qiu, H. Rau, W. Redl, P. Reisetter, A. Ricci, Y. Rogers, H. E. Saab, T. Sadoulet, B. Sander, J. Schneck, K. Schnee, R. W. Scorza, S. Serfass, B. Shank, B. Speller, D. Toback, D. Upadhyayula, S. Villano, A. N. Welliver, B. Wilson, J. S. Wright, D. H. Yang, X. Yellin, S. Yen, J. J. Young, B. A. Zhang, J. Anderson, Adam Jonathan Billard, Julien Figueroa-Feliciano, Enectali Hertel, Scott A. Leder, Alexander Friedrich McCarthy, Kevin Ahmad |
| author_sort | Agnese, R. |
| collection | MIT |
| description | CDMS II data from the five-tower runs at the Soudan Underground Laboratory were reprocessed with an improved charge-pulse fitting algorithm. Two new analysis techniques to reject surface-event backgrounds were applied to the 612 kg days germanium-detector weakly interacting massive particle (WIMP)-search exposure. An extended analysis was also completed by decreasing the 10 keV analysis threshold to ~5 keV, to increase sensitivity near a WIMP mass of 8 GeV/c[superscript 2]. After unblinding, there were zero candidate events above a deposited energy of 10 keV and six events in the lower-threshold analysis. This yielded minimum WIMP-nucleon spin-independent scattering cross-section limits of 1.8 × 10[superscript −44] and 1.18 × 10[superscript −41] at 90% confidence for 60 and 8.6 GeV/c[superscript 2] WIMPs, respectively. This improves the previous CDMS II result by a factor of 2.4 (2.7) for 60 (8.6) GeV/c[superscript 2] WIMPs. |
| first_indexed | 2024-09-23T11:58:38Z |
| format | Article |
| id | mit-1721.1/99216 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:58:38Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/992162022-10-01T07:23:26Z Improved WIMP-search reach of the CDMS II germanium data Agnese, R. Asai, M. Balakishiyeva, D. Barker, D. Basu Thakur, R. Bauer, D. A. Borgland, A. Bowles, M. A. Brandt, D. Brink, P. L. Bunker, R. Cabrera, B. Caldwell, D. O. Calkins, R. Cerdeño, 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. Jardin, D. M. Jastram, A. Kamaev, O. Kara, B. Kelsey, M. H. Kennedy, A. Kiveni, M. Koch, K. Loer, B. Lopez Asamar, E. Lukens, P. Mahapatra, R. Mandic, V. Mirabolfathi, N. Moffatt, R. A. Oser, S. M. Page, K. Page, W. A. Partridge, R. Pepin, M. Phipps, A. Prasad, K. Pyle, M. Qiu, H. Rau, W. Redl, P. Reisetter, A. Ricci, Y. Rogers, H. E. Saab, T. Sadoulet, B. Sander, J. Schneck, K. Schnee, R. W. Scorza, S. Serfass, B. Shank, B. Speller, D. Toback, D. Upadhyayula, S. Villano, A. N. Welliver, B. Wilson, J. S. Wright, D. H. Yang, X. Yellin, S. Yen, J. J. Young, B. A. Zhang, J. Anderson, Adam Jonathan Billard, Julien Figueroa-Feliciano, Enectali Hertel, Scott A. Leder, Alexander Friedrich McCarthy, Kevin Ahmad Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Anderson, Adam Jonathan Billard, Julien Figueroa-Feliciano, Enectali Hertel, Scott A. Leder, Alexander Friedrich McCarthy, Kevin Ahmad CDMS II data from the five-tower runs at the Soudan Underground Laboratory were reprocessed with an improved charge-pulse fitting algorithm. Two new analysis techniques to reject surface-event backgrounds were applied to the 612 kg days germanium-detector weakly interacting massive particle (WIMP)-search exposure. An extended analysis was also completed by decreasing the 10 keV analysis threshold to ~5 keV, to increase sensitivity near a WIMP mass of 8 GeV/c[superscript 2]. After unblinding, there were zero candidate events above a deposited energy of 10 keV and six events in the lower-threshold analysis. This yielded minimum WIMP-nucleon spin-independent scattering cross-section limits of 1.8 × 10[superscript −44] and 1.18 × 10[superscript −41] at 90% confidence for 60 and 8.6 GeV/c[superscript 2] WIMPs, respectively. This improves the previous CDMS II result by a factor of 2.4 (2.7) for 60 (8.6) GeV/c[superscript 2] WIMPs. National Science Foundation (U.S.) United States. Dept. of Energy Natural Sciences and Engineering Research Council of Canada Spain. Ministerio de Economia y Competitividad (MultiDark) 2015-10-13T12:17:39Z 2015-10-13T12:17:39Z 2015-10 2015-04 2015-10-12T22:00:08Z Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/99216 Agnese, R., et al. "Improved WIMP-search reach of the CDMS II germanium data." Phys. Rev. D 92, 072003 (October 2015). © 2015 American Physical Society https://orcid.org/0000-0003-1429-1104 https://orcid.org/0000-0002-4435-4623 https://orcid.org/0000-0001-9285-5556 en http://dx.doi.org/10.1103/PhysRevD.92.072003 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Agnese, R. Asai, M. Balakishiyeva, D. Barker, D. Basu Thakur, R. Bauer, D. A. Borgland, A. Bowles, M. A. Brandt, D. Brink, P. L. Bunker, R. Cabrera, B. Caldwell, D. O. Calkins, R. Cerdeño, 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. Jardin, D. M. Jastram, A. Kamaev, O. Kara, B. Kelsey, M. H. Kennedy, A. Kiveni, M. Koch, K. Loer, B. Lopez Asamar, E. Lukens, P. Mahapatra, R. Mandic, V. Mirabolfathi, N. Moffatt, R. A. Oser, S. M. Page, K. Page, W. A. Partridge, R. Pepin, M. Phipps, A. Prasad, K. Pyle, M. Qiu, H. Rau, W. Redl, P. Reisetter, A. Ricci, Y. Rogers, H. E. Saab, T. Sadoulet, B. Sander, J. Schneck, K. Schnee, R. W. Scorza, S. Serfass, B. Shank, B. Speller, D. Toback, D. Upadhyayula, S. Villano, A. N. Welliver, B. Wilson, J. S. Wright, D. H. Yang, X. Yellin, S. Yen, J. J. Young, B. A. Zhang, J. Anderson, Adam Jonathan Billard, Julien Figueroa-Feliciano, Enectali Hertel, Scott A. Leder, Alexander Friedrich McCarthy, Kevin Ahmad Improved WIMP-search reach of the CDMS II germanium data |
| title | Improved WIMP-search reach of the CDMS II germanium data |
| title_full | Improved WIMP-search reach of the CDMS II germanium data |
| title_fullStr | Improved WIMP-search reach of the CDMS II germanium data |
| title_full_unstemmed | Improved WIMP-search reach of the CDMS II germanium data |
| title_short | Improved WIMP-search reach of the CDMS II germanium data |
| title_sort | improved wimp search reach of the cdms ii germanium data |
| url | http://hdl.handle.net/1721.1/99216 https://orcid.org/0000-0003-1429-1104 https://orcid.org/0000-0002-4435-4623 https://orcid.org/0000-0001-9285-5556 |
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