Rejection of Electronic Recoils with the DMTPC Dark Matter Search
The Dark Matter Time Projection Chamber (DMTPC) collaboration is developing a low-pressure gas TPC for detecting WIMP-nucleon interactions. DMTPC detectors use optical readout with CCD cameras to search for the daily modulation of the directional signal of the dark matter wind. An analysis of severa...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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Elsevier
2014
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| Online Access: | http://hdl.handle.net/1721.1/91890 https://orcid.org/0000-0003-3226-787X https://orcid.org/0000-0002-4003-6089 https://orcid.org/0000-0002-4953-6397 https://orcid.org/0000-0002-8667-5660 |
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| author | Lopez, Jeremy Paul Ahlen, S. Battat, James Caldwell, T. Chernicoff, M. Dujmic, Denis Dushkin, A. Fedus, William B. Golub, F. Henderson, Shawn Wesley Inglis, A. Kaboth, Asher Cunningham Kirsch, L. Lee, A. Monroe, J. Ouyang, H. Sahin, T. Sciolla, G. Skvorodnev, N. Tomita, H. Wellenstein, H. Wolfe, I. Yamamoto, R. Yegoryan, H. Deaconu, Cosmin Stefan Fisher, Peter H. Kohse, Gordon E. Lanza, Richard C. |
| author2 | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Lopez, Jeremy Paul Ahlen, S. Battat, James Caldwell, T. Chernicoff, M. Dujmic, Denis Dushkin, A. Fedus, William B. Golub, F. Henderson, Shawn Wesley Inglis, A. Kaboth, Asher Cunningham Kirsch, L. Lee, A. Monroe, J. Ouyang, H. Sahin, T. Sciolla, G. Skvorodnev, N. Tomita, H. Wellenstein, H. Wolfe, I. Yamamoto, R. Yegoryan, H. Deaconu, Cosmin Stefan Fisher, Peter H. Kohse, Gordon E. Lanza, Richard C. |
| author_sort | Lopez, Jeremy Paul |
| collection | MIT |
| description | The Dark Matter Time Projection Chamber (DMTPC) collaboration is developing a low-pressure gas TPC for detecting WIMP-nucleon interactions. DMTPC detectors use optical readout with CCD cameras to search for the daily modulation of the directional signal of the dark matter wind. An analysis of several charge readout channels has been developed to obtain additional information about ionization events in the detector. In order to reach sensitivities required for the WIMP detection, the detector needs to minimize backgrounds from electron recoils. This article shows that by using the readout of charge signals in addition to CCD readout, a preliminary statistics-limited 90% C.L. upper limit on the γ and e[superscript −] rejection factor of 5.6 × 10[superscript −6] is obtained for energies between 40 keV[subscript ee] and 200 keV[subscript ee]. |
| first_indexed | 2024-09-23T09:47:18Z |
| format | Article |
| id | mit-1721.1/91890 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:47:18Z |
| publishDate | 2014 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/918902022-09-26T13:42:24Z Rejection of Electronic Recoils with the DMTPC Dark Matter Search Lopez, Jeremy Paul Ahlen, S. Battat, James Caldwell, T. Chernicoff, M. Dujmic, Denis Dushkin, A. Fedus, William B. Golub, F. Henderson, Shawn Wesley Inglis, A. Kaboth, Asher Cunningham Kirsch, L. Lee, A. Monroe, J. Ouyang, H. Sahin, T. Sciolla, G. Skvorodnev, N. Tomita, H. Wellenstein, H. Wolfe, I. Yamamoto, R. Yegoryan, H. Deaconu, Cosmin Stefan Fisher, Peter H. Kohse, Gordon E. Lanza, Richard C. Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science MIT Nuclear Reactor Laboratory MIT Kavli Institute for Astrophysics and Space Research Lopez, Jeremy Paul Caldwell, T. Deaconu, Cosmin Stefan Dujmic, Denis Fedus, William B. Monroe, J. Fisher, Peter H. Henderson, Shawn Wesley Kaboth, Asher Cunningham Kohse, Gordon E. Lanza, Richard C. Lee, A. Sahin, T. Wolfe, I. Yamamoto, R. Yegoryan, H. The Dark Matter Time Projection Chamber (DMTPC) collaboration is developing a low-pressure gas TPC for detecting WIMP-nucleon interactions. DMTPC detectors use optical readout with CCD cameras to search for the daily modulation of the directional signal of the dark matter wind. An analysis of several charge readout channels has been developed to obtain additional information about ionization events in the detector. In order to reach sensitivities required for the WIMP detection, the detector needs to minimize backgrounds from electron recoils. This article shows that by using the readout of charge signals in addition to CCD readout, a preliminary statistics-limited 90% C.L. upper limit on the γ and e[superscript −] rejection factor of 5.6 × 10[superscript −6] is obtained for energies between 40 keV[subscript ee] and 200 keV[subscript ee]. United States. Dept. of Energy (Grant DE-FG02-05ER41360) United States. Dept. of Energy. Advanced Detector Research Program (Contract 6916448) Massachusetts Institute of Technology. James H. Ferry Fund for Innovation in Research Education MIT Department of Physics Pappalardo Program Massachusetts Institute of Technology (Charles E. Reed Faculty Initiative Fund) Kavli Institute for Astrophysics and Space Research Massachusetts Institute of Technology. Department of Physics Bates Linear Accelerator Center 2014-11-24T19:03:06Z 2014-11-24T19:03:06Z 2012-10 2012-03 Article http://purl.org/eprint/type/JournalArticle 18753892 http://hdl.handle.net/1721.1/91890 Lopez, J.P., S. Ahlen, J. Battat, T. Caldwell, M. Chernicoff, C. Deaconu, D. Dujmic, et al. “Rejection of Electronic Recoils with the DMTPC Dark Matter Search.” Physics Procedia 37 (2012): 575–582. https://orcid.org/0000-0003-3226-787X https://orcid.org/0000-0002-4003-6089 https://orcid.org/0000-0002-4953-6397 https://orcid.org/0000-0002-8667-5660 en_US http://dx.doi.org/10.1016/j.phpro.2012.03.716 Physics Procedia Creative Commons Attribution http://creativecommons.org/licenses/by-nc-nd/3.0/ application/pdf Elsevier Elsevier |
| spellingShingle | Lopez, Jeremy Paul Ahlen, S. Battat, James Caldwell, T. Chernicoff, M. Dujmic, Denis Dushkin, A. Fedus, William B. Golub, F. Henderson, Shawn Wesley Inglis, A. Kaboth, Asher Cunningham Kirsch, L. Lee, A. Monroe, J. Ouyang, H. Sahin, T. Sciolla, G. Skvorodnev, N. Tomita, H. Wellenstein, H. Wolfe, I. Yamamoto, R. Yegoryan, H. Deaconu, Cosmin Stefan Fisher, Peter H. Kohse, Gordon E. Lanza, Richard C. Rejection of Electronic Recoils with the DMTPC Dark Matter Search |
| title | Rejection of Electronic Recoils with the DMTPC Dark Matter Search |
| title_full | Rejection of Electronic Recoils with the DMTPC Dark Matter Search |
| title_fullStr | Rejection of Electronic Recoils with the DMTPC Dark Matter Search |
| title_full_unstemmed | Rejection of Electronic Recoils with the DMTPC Dark Matter Search |
| title_short | Rejection of Electronic Recoils with the DMTPC Dark Matter Search |
| title_sort | rejection of electronic recoils with the dmtpc dark matter search |
| url | http://hdl.handle.net/1721.1/91890 https://orcid.org/0000-0003-3226-787X https://orcid.org/0000-0002-4003-6089 https://orcid.org/0000-0002-4953-6397 https://orcid.org/0000-0002-8667-5660 |
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