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2. First dark matter search results from a surface run of the 10-L DMTPC directional dark matter detector

Author

Massachusetts Institute of Technology. Department of Nuclear Science and Engineering, Massachusetts Institute of Technology. Laboratory for Nuclear Science, MIT Kavli Institute for Astrophysics and Space Research, Dujmic, Denis, Fisher, Peter H, Kohse, Gordon E, Lanza Jr, Robert K, Ahlen, S., Battat, J.B.R., Caldwell, T., Deaconu, C., Fedus, W., Golub, F., Henderson, S., Inglis, A., Kaboth, A., Lee, A., Lopez, J., Monroe, J., Sahin, T., Sciolla, G., Skvorodnev, N., Tomita, H., Wellenstein, H., Wolfe, I., Yamamoto, R., Yegoryan, H., Massachusetts Institute of Technology. Department of Nuclear Science and Engineering, Massachusetts Institute of Technology. Laboratory for Nuclear Science, MIT Kavli Institute for Astrophysics and Space Research, Dujmic, Denis, Fisher, Peter H, Kohse, Gordon E, Lanza Jr, Robert K, Ahlen, S., Battat, J.B.R., Caldwell, T., Deaconu, C., Fedus, W., Golub, F., Henderson, S., Inglis, A., Kaboth, A., Lee, A., Lopez, J., Monroe, J., Sahin, T., Sciolla, G., Skvorodnev, N., Tomita, H., Wellenstein, H., Wolfe, I., Yamamoto, R., and Yegoryan, H.

Abstract

The Dark Matter Time Projection Chamber (DMTPC) is a low pressure (75 Torr CF 4 ) 10 liter detector capable of measuring the vector direction of nuclear recoils with the goal of directional dark matter detection. In this Letter we present the first dark matter limit from DMTPC from a surface run at MIT. In an analysis window of 80-200 keV recoil energy, based on a 35.7 g-day exposure, we set a 90% C.L. upper limit on the spin-dependent WIMP-proton cross section of 2.0×10 -33 cm2 for 115 GeV/c 2 dark matter particle mass. Keywords: Dark matter; WIMP; Direction-sensitive; Time projection chamber, United States. Department of Energy (Contract 6916448)

Published
2018

3. Rejection of Electronic Recoils with the DMTPC Dark Matter Search

Author

Lopez, J.P., primary, Ahlen, S., additional, Battat, J., additional, Caldwell, T., additional, Chernicoff, M., additional, Deaconu, C., additional, Dujmic, D., additional, Dushkin, A., additional, Fedus, W., additional, Fisher, P., additional, Golub, F., additional, Henderson, S., additional, Inglis, A., additional, Kaboth, A., additional, Kohse, G., additional, Kirsch, L., additional, Lanza, R., additional, Lee, A., additional, Monroe, J., additional, Ouyang, H., additional, Sahin, T., additional, Sciolla, G., additional, Skvorodnev, N., additional, Tomita, H., additional, Wellenstein, H., additional, Wolfe, I., additional, Yamamoto, R., additional, and Yegoryan, H., additional

Published
2012
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4. First dark matter search results from a surface run of the 10-L DMTPC directional dark matter detector

Author

Ahlen, S., primary, Battat, J.B.R., additional, Caldwell, T., additional, Deaconu, C., additional, Dujmic, D., additional, Fedus, W., additional, Fisher, P., additional, Golub, F., additional, Henderson, S., additional, Inglis, A., additional, Kaboth, A., additional, Kohse, G., additional, Lanza, R., additional, Lee, A., additional, Lopez, J., additional, Monroe, J., additional, Sahin, T., additional, Sciolla, G., additional, Skvorodnev, N., additional, Tomita, H., additional, Wellenstein, H., additional, Wolfe, I., additional, Yamamoto, R., additional, and Yegoryan, H., additional

Published
2011
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6. Hereditary Cataracta Caerulea

Author

Russell M. Wolfe and Otis Wolfe I

Subjects
Ophthalmology, biology, Zoology, biology.organism_classification, Caerulea
Published
1943

7. Rejection of Electronic Recoils with the DMTPC Dark Matter Search

Author

D. Dujmic, H. Tomita, H. Yegoryan, F. Golub, A. Lee, A. Dushkin, Richard C. Lanza, Jeremy Lopez, William Fedus, L. Kirsch, M. Chernicoff, Peter H. Fisher, T. Caldwell, Andrew Inglis, G. Kohse, H. Ouyang, G. Sciolla, James Battat, H. Wellenstein, N. Skvorodnev, T. Sahin, A. C. Kaboth, Shawn Wesley Henderson, R. K. Yamamoto, Cosmin Deaconu, Jocelyn Monroe, S. P. Ahlen, I. Wolfe, 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., and Yegoryan, H.

Subjects
Physics, Particle physics, Physics::Instrumentation and Detectors, WIMP, Direct detection, Detector, Dark matter, Astrophysics::Instrumentation and Methods for Astrophysics, Electron, Physics and Astronomy(all), Signal, Dark matter wind, Nuclear physics, Modulation, Ionization, TPC, Dark Matter Time Projection Chamber
Abstract

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

Published
2012
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