Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aps..apra10001b&link_type=abstract
American Physical Society, APS April Meeting 2010, February 13-16, 2010, abstract #A10.001
Astronomy and Astrophysics
Astrophysics
Scientific paper
A WIMP detector with directional sensitivity could correlate signal events with astrophysical sources, thereby providing a definitive observable signature of dark matter. Our Dark Matter Time-Projection Chamber (DMTPC) collaboration uses a gas-based detector with optical and charge readout to achieve directional sensitivity. We have built a 10 liter prototype detector and operated it in a surface laboratory. The detector consists of two back-to-back time-projection chambers enclosed within a vacuum vessel which is filled with CF4 gas at 75 Torr. I will report on the results from this run, including the first DMTPC limit on the spin-dependent cross section. In addition, I will describe our next-generation detector which we will deploy underground at the WIPP facility in New Mexico (1.6 km water equivalent depth). )
Ahlen Steve
Battat James
Caldwell Thomas
Dujmic Denis
Dushkin Andrei
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